6481 - Construction of Cedar Street Parking Lot, 3.Statement of Work/ Specifications23 JUN 17
Construction Specifications
for
Old Central Parking Lot
Denton, Texas
Prepared by
Pacheco Koch, LLC
6100 Western Place
Suite 1001
Fort Worth, Texas 76107
Exhibit 3
23 JUN 17
Contents
01 56 39 – Temporary Tree and Plant Protection
12 93 00 – Site Furnishings
31 00 00 – Earth Work
31 10 00 – Site Clearing
31 25 00 – Erosion and Sedimentation Controls
31 32 13.19 – Lime Treated Base Courses
32 13 13 – Portland Cement Concrete Paving
32 13 14 – Pedestrian Concrete & Surface Paving
32 13 73 – Concrete Paving Joint Sealants
32 14 00 – Unit Pavers
32 84 00 – Planting Irrigation
32 93 00 – Plants
33 46 00 – Storm Drainage Utilities
33 46 13.13 – Foundation and Drainage
Exhibit 3
SECTION 01 56 39 TEMPORARY TREE AND PLANT PROTECTION PART 1 GENERAL 1.01 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.02 SUMMARY A. Section includes general protection, pruning, and care of existing trees and plants that are affected by execution of the Work, whether temporary or permanent construction.
B. Related Requirements:
1. Section 01 50 00 "Temporary Facilities and Controls" for temporary site fencing.
2. Section 31 10 00 "Site Clearing" for removing existing trees and shrubs.
1.03 DEFINITIONS
A. Caliper: Diameter of a trunk measured by a diameter tape at a height 12inches above the
ground. B. Drip Line: The width of the canopy of the tree as measured by the lateral extent of the foliage on all sides.
C. Plant-Protection Zone: Area surrounding individual trees, groups of trees, shrubs, or other
vegetation to be protected during construction and indicated on Drawings.
D. Tree-Protection Zone: Area surrounding individual trees or groups of trees to be protected
during construction and indicated on Drawings or defined by a circle concentric with each tree with a radius 1.5 times the diameter of the drip line unless otherwise indicated. E. Vegetation: Trees, shrubs, groundcovers, grass, and other plants 1.04 PREINSTALLATION MEETINGS A. Preinstallation Conference: Conduct conference at Project site. 1. Review methods and procedures related to temporary tree and plant protection including, but not limited to, the following: a. Tree-service firm's personnel, and equipment needed to make progress and avoid delays. b. Arborist's responsibilities. c. Quality-control program. d. Coordination of Work and equipment movement with the locations of protection zones. e. Trenching by hand or with air spade within protection zones.
f. Field quality control.
1.05 ACTION SUBMITTALS
A. Product Data: For each type of product.
B. Shop Drawings:
1. Include plans, elevations, sections, and locations of protection-zone fencing and
signage, showing relation of equipment-movement routes and material storage
locations with protection zones. 2. Indicate extent of trenching by hand or with air spade within protection zones. C. Samples: For each type of the following: 1. Organic Mulch: 1-quart volume of organic mulch; in sealed plastic bags labeled with composition of materials by percentage of weight and source of mulch. D. Tree Preservation Schedule: Schedule, written by the arborist, detailing scope and extent of work to be performed to preserve and protect existing trees to remain that interfere with or are affected by construction.
Exhibit 3
1. Species and size of tree. 2. Location of tree on site plan. Include unique identifier for each. 3. Location of protection zone for each tree. 4. If arborist determines pruning is required, provide reason for pruning, description of pruning to be performed, and description of maintenance procedures following pruning. 1.06 INFORMATIONAL SUBMITTALS A. Qualification Data: For arborist and tree service firm. B. Certification: From arborist, certifying that trees indicated to remain have been protected during construction according to recognized standards and that trees were promptly and properly treated and repaired when damaged. C. Maintenance Recommendations: From arborist, for care and protection of trees affected
by construction during and after completing the Work.
D. Existing Conditions: Documentation of existing trees and plantings indicated to remain,
which establishes preconstruction conditions that might be misconstrued as damage
caused by construction activities.
1. Use sufficiently detailed photographs or video recordings.
2. Include plans and notations to indicate specific wounds and damage conditions
of each tree or other plants designated to remain.
E. Quality-control program. 1.07 QUALITY ASSURANCE
A. Arborist Qualifications: Certified Arborist as certified by the International Society of
Arboriculture (ISA) or a Registered Consulting Arborist as designated by ASCA.
B. Tree Service Firm Qualifications: An experienced tree service firm that has successfully
completed temporary tree and plant protection work similar to that required for this Project and that will assign an experienced, qualified arborist to Project site during execution of the Work. C. Quality-Control Program: Prepare a written program to systematically demonstrate the ability of personnel to properly follow procedures and handle materials and equipment during the Work without damaging trees and plantings. Include dimensioned diagrams for placement of protection zone fencing and signage, the arborist's and tree-service firm's responsibilities, instructions given to workers on the use and care of protection zones, and enforcement of requirements for protection zones. 1.08 FIELD CONDITIONS A. The following practices are prohibited within protection zones:
1. Storage of construction materials, debris, or excavated material.
2. Storage or use of equipment and non-related construction activities including, but not limited to, pipe-cutting machines, tile-cutting machines, and lumber saws.
3. Storage or dumping of deleterious materials harmful to plant growth. Deleterious
materials might include, but are not limited to, fuels, oils, other petroleum
products, acids, liquids, concrete mix or concrete washout, stucco mix or stucco
washout, paint or paint washout, and zinc grindings from working with galvanized
products in the field.
4. Soil disturbance or grade change.
5. Moving or parking vehicles or equipment, even temporarily.
6. Foot traffic. 7. Erection of sheds or structures. 8. Drainage changes or impoundment of water. 9. Excavation or other digging unless otherwise indicated. 10. Attachment of signs to or wrapping materials around trees or plants unless otherwise indicated. 11. The use of a tree as a temporary power pole, backstop, winch support, anchorage, or other similar function. B. Do not direct vehicle or equipment exhaust toward protection zones.
Exhibit 3
C. Prohibit heat sources, flames, ignition sources, and smoking within or near protection zones and organic mulch. PART 2 PRODUCTS 2.01 MATERIALS A. Backfill Soil: Planting soil of suitable moisture content and granular texture for placing around tree; free of stones, roots, plants, sod, clods, clay lumps, pockets of coarse sand, concrete slurry, concrete layers or chunks, cement, plaster, building debris, and other extraneous materials harmful to plant growth.
1. Planting Soil: Fertile, friable, surface soil, containing natural loam and complying with ASTM D 5268. Provide topsoil that is free of stones larger than 1 inch in any dimension and free of other extraneous or toxic matter harmful to plant growth.
Obtain topsoil only from well-drained sites where soil occurs in depth of 4 inches or
more; do not obtain from bogs or marshes.
B. Organic Mulch: Free from deleterious materials and suitable as a top dressing for trees and
shrubs, consisting of one of the following:
1. Type: Hardwood.
2. Size Range: 3/8 inch to 3/4 inch diameter.
3. Color: Natural, no dyes.
C. Protection-Zone Fencing: Fencing fixed in position and meeting the following requirements. Previously used materials may be used when approved by District Representative. 1. Chain-Link Protection-Zone Fencing: Galvanized-steel fencing fabricated from
minimum 2-inch opening, 0.148-inch-diameter wire chain-link fabric; with pipe
posts, minimum 2- 3/8-inch-OD line posts, and 2-7/8-inch-OD corner and pull posts;
with 0.177-inch- diameter top tension wire and 0.177-inch-diameter bottom tension
wire; with tie wires, hog ring ties, and other accessories for a complete fence system. a. Height: 72 inches. 2. Gates: Single swing access gates matching material and appearance of fencing, to allow for maintenance activities within protection zones; leaf width 36 inches. PART 3 EXECUTION 3.01 EXAMINATION A. Erosion and Sedimentation Control: Examine the site to verify that temporary erosion- and sedimentation-control measures are in place. Verify that flows of water redirected from construction areas or generated by construction activity do not enter or cross protection zones. B. Prepare written report, authored by arborist, listing conditions detrimental to tree and plant protection.
3.02 PREPARATION
A. Locate and clearly identify trees, shrubs, and other vegetation to remain. Tie a 1-inch blue
vinyl tape around each tree trunk at 54 inches above the ground.
B. Protect tree root systems from damage caused by runoff or spillage of noxious materials
while mixing, placing, or storing construction materials. Protect root systems from ponding,
eroding, or excessive wetting caused by dewatering operations.
C. Tree-Protection Zones: Mulch areas inside tree-protection zones and other areas indicated. Do not exceed indicated thickness of mulch. 1. Apply 6-8 inch uniform thickness of organic mulch unless otherwise indicated. Do not place mulch within 6 inches of tree trunks. 3.03 PROTECTION ZONES A. Protection-Zone Fencing: Install protection-zone fencing along edges of protection zones before materials or equipment are brought on the site and construction operations begin in a manner that will prevent people and animals from easily entering protected areas
Exhibit 3
except by entrance gates. Construct fencing so as not to obstruct safe passage or visibility at vehicle intersections where fencing is located adjacent to pedestrian walkways or in close proximity to street intersections, drives, or other vehicular circulation. 1. Fencing: Install to comply with manufacturer's written instructions. 2. Posts: Set or drive posts into ground one-third the total height of the fence without concrete footings. Where a post is located on existing paving or concrete to remain, provide appropriate means of post support acceptable to District Representative. 3. Access Gates: Install; adjust to operate smoothly, easily, and quietly; free of binding, warp, excessive deflection, distortion, nonalignment, misplacement, disruption, or malfunction throughout entire operational range. Confirm that latches and locks engage accurately and securely without forcing or binding. B. Protection-Zone Signage: Install protection-zone signage in visibly prominent locations in a
manner approved by owner. Install one sign spaced approximately every 20 feet on
protection-zone fencing, but no fewer than four signs with each facing a different
direction.
C. Maintain protection zones free of weeds and trash.
D. Maintain protection-zone fencing and signage in good condition as acceptable to District
Representative and remove when construction operations are complete and equipment
has been removed from the site.
1. Do not remove protection-zone fencing, even temporarily, to allow deliveries or equipment access through the protection zone. 2. Temporary access is permitted subject to preapproval in writing by arborist if a
root buffer effective against soil compaction is constructed as directed by arborist.
Maintain root buffer so long as access is permitted.
3.04 EXCAVATION A. General: Excavate at edge of protection zones and for trenches indicated within protection zones according to requirements in Section 31 20 00 "Earth Moving" unless otherwise indicated. B. Trenching within Protection Zones: Where utility trenches are required within protection zones, excavate under or around tree roots by hand or with air spade, or tunnel under the roots by drilling, auger boring, or pipe jacking. Do not cut main lateral tree roots or taproots; cut only smaller roots that interfere with installation of utilities. Cut roots as required for root pruning. If excavating by hand, use narrow-tine spading forks to comb soil and expose roots. C. Redirect roots in backfill areas where possible. If encountering large, main lateral roots, expose roots beyond excavation limits as required to bend and redirect them without breaking. If encountered immediately adjacent to location of new construction and redirection is not practical, cut roots approximately 3 inches back from new construction and as required for root pruning.
D. Do not allow exposed roots to dry out before placing permanent backfill. Provide
temporary earth cover or pack with peat moss and wrap with burlap. Water and maintain
in a moist condition. Temporarily support and protect roots from damage until they are
permanently relocated and covered with soil.
3.05 ROOT PRUNING
A. Root pruning shall not be attempted by untrained construction personnel, but shall be
performed by a qualified tree care professional or a certified tree care worker. Only personnel approved by the arborist shall perform pruning operations. B. Prune tree roots that are affected by temporary and permanent construction. Prune roots as directed by the arborist or as follows. If direction from arborist is different from what is stated below, then direction from arborist governs. 1. Cut roots manually by digging a trench and cutting exposed roots with sharp pruning instruments; do not break, tear, chop, or slant the cuts. Do not use a backhoe or other equipment that rips, tears, or pulls roots.
Exhibit 3
2. Cut Ends: Treat as directed by arborist. 3. Temporarily support and protect roots from damage until they are permanently redirected and covered with soil. 4. Cover exposed roots with burlap and water regularly. 5. Backfill as soon as possible according to requirements in Section 31 20 00 "Earth Moving." C. Root Pruning at Edge of Protection Zone: Prune tree roots 6 inches of the protection zone by cleanly cutting all roots to the depth of the required excavation. D. Root Pruning within Protection Zone: Clear and excavate by hand or with air spade to the depth of the required excavation to minimize damage to tree root systems. If excavating by hand, use narrow-tine spading forks to comb soil to expose roots. Cleanly cut roots as close to excavation as possible.
3.06 CROWN PRUNING
A. Crown pruning shall not be attempted by untrained construction personnel, but shall be
performed by a qualified tree care professional or a certified tree care worker. Only
personnel approved by the arborist shall perform pruning operations.
B. Prune branches that are affected by temporary and permanent construction. Prune
branches as directed by arborist.
1. Prune to remove only injured, broken, dying, or dead branches unless otherwise
indicated. Do not prune for shape unless otherwise indicated. 2. Do not remove or reduce living branches to compensate for root loss caused by damaging or cutting root system.
3. Pruning Standards: Prune trees according to ANSI A300 (Part 1).
a. Type of Pruning: Cleaning, raising, reducing, and thinning as directed by
arborist.
b. Specialty Pruning: Structural restoration, vista, espalier, pollarding, palm, and utility as directed by arborist. C. Unless otherwise directed by arborist and acceptable to District Representative, do not cut tree leaders. D. Cut branches with sharp pruning instruments; do not break or chop. E. Do not paint or apply sealants to wounds. F. Provide subsequent maintenance pruning during Contract period as recommended by arborist. G. Chip removed branches and dispose of off-site. 3.07 REGRADING A. Lowering Grade: Where new finish grade is indicated below existing grade around trees, slope grade beyond the protection zone. Maintain existing grades within the protection zone. B. Lowering Grade within Protection Zone: Where new finish grade is indicated below existing
grade around trees, slope grade away from trees as recommended by arborist unless
otherwise indicated.
1. Root Pruning: Prune tree roots exposed by lowering the grade. Do not cut main
lateral roots or taproots; cut only smaller roots. Cut roots as required for root
pruning.
C. Raising Grade: Where new finish grade is indicated above existing grade around trees,
slope grade beyond the protection zone. Maintain existing grades within the protection
zone. D. Minor Fill within Protection Zone: Where existing grade is 2 inches or less below elevation of finish grade, fill with backfill soil. Place backfill soil in a single uncompacted layer and hand grade to required finish elevations.
Exhibit 3
3.08 FIELD QUALITY CONTROL A. Inspections: Engage a qualified arborist to direct plant-protection measures in the vicinity of trees, shrubs, and other vegetation indicated to remain and to prepare inspection reports. Submit inspection reports monthly. 3.09 MAINTENANCE A. Irrigation: Supplemental irrigation shall be applied to moisten the soil within the protection zone to the depth of the existing root system as necessary, typically in the top 2 to 3 feet of soil, and to then replace that moisture once it is depleted. Irrigation frequency and depth shall be based on the needs of the individual tree. Irrigation applications performed on a schedule are not acceptable, as many variables determine the individual tree’s needs (age of tree, size of tree, soil type, aspect, weather, time of year, extent of root pruning, etc). Light, frequent irrigation applications shall be avoided. Apply water deeply,
thoroughly, and infrequently, by a method directed by the arborist. Water used in
supplemental irrigation applications shall be clean potable water from a reliable source.
B. Where temporary clearance is needed for adjacent access, tree branches shall be
temporarily tied back to hold them out of the clearance zone, with approval by the
arborist. Tied branches shall be protected with burlap or other protective material to
prevent wounding and chafing.
C. Dust Control: Tree shall be maintained in a clean fashion throughout the length of the
Work. During periods of demolition, clearing & grubbing, grading activities, post-wind, or simply time, gently spray the foliage, trunks, and branches with clean potable water to remove construction dust. Do not utilize pressure washers, large streams of water with high
volumes, or other insensitive methods to clean the foliage.
D. Area inside the tree protection zone shall be maintained in a neat manner, removing
excessive leaf build-up, fallen twigs and branches, or debris deposited by winds or other
causes. E. When installing concrete adjacent to the tree protection zone, install a plastic vapor barrier behind the concrete to prohibit leaching of lime into the soil. F. Pest and Disease Control: Notify the arborist if any symptoms of pest or disease are observed. Provide appropriate measures to prevent or remedy pests and diseases, as directed by the arborist. 3.10 REPAIR AND REPLACEMENT A. General: Repair or replace trees, shrubs, and other vegetation indicated to remain or to be relocated that are damaged by construction operations, in a manner approved by District Representative. 1. Submit details of proposed pruning and repairs. 2. Perform repairs of damaged trunks, branches, and roots within 24 hours according to arborist's written instructions. 3. Replace trees and other plants that cannot be repaired and restored to full-
growth status, as determined by District Representative.
B. Trees: Remove and replace trees indicated to remain that are more than 25 percent dead
or in an unhealthy condition before the end of the corrections period or are damaged
during construction operations that District Representative determines are incapable of
restoring to normal growth pattern.
1. Small Trees: Provide new trees of same size and species as those being replaced
for each tree that measures 10 inches or smaller in caliper size.
2. Large Trees: Project Arborist shall determine the tree appraisal value for damage and replacement using the most recent edition of the Guide for Plant Appraisal, authored by the Council of Tree and Landscape Appraisers (CTLA), and published by the International Society of Arboriculture (ISA), Champaign, IL. The formula used shall also be noted. a. Species: As selected by District Representative. 3. Plant and maintain new trees as specified in Section 32 93 00 "Plants." C. Excess Mulch: Rake mulched area within protection zones, being careful not to injure roots. Rake to loosen and remove mulch that exceeds a 3 inch uniform thickness to remain.
Exhibit 3
D. Soil Aeration: Aerate surface soil compacted during construction. Aerate 10 feet beyond drip line and no closer than 36 inches to tree trunk. Drill 2 inch diameter holes a minimum of 12 Inches deep at 24 inches o.c. Backfill holes with an equal mix of augered soil and sand. 3.11 DISPOSAL OF SURPLUS AND WASTE MATERIALS A. Disposal: Remove excess excavated material, displaced trees, trash, and debris and legally dispose of them off District's property. END OF SECTION 01 56 39
Exhibit 3
SECTION 12 93 00
SITE FURNISHINGS
PART 1 - GENERAL 1.01 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.02 SUMMARY A. This Section includes the following: 1. Trash receptacles. 2. Benches. 3. Bike Racks.
B. Related Sections include the following:
1. Division 32 Section "Concrete Pavements" for concrete footings and slabs and for the
concrete used in the picnic tables.
1.03 SUBMITTALS
A. Product Data: For each type of product indicated.
B. Samples for Verification: For each type of exposed finish required, prepared on Samples of
size indicated below.
1. Size: Not less than 6-inch- long linear components and 4-inch- square sheet components.
C. Product Schedule: For site furnishings. Use same designations indicated on Drawings.
D. Maintenance Data: For site furnishings to include in maintenance manuals.
1.04 QUALITY ASSURANCE A. Source Limitations: Obtain each type of site furnishing through one source from a single manufacturer. PART 2 - PRODUCTS 2.01 TRASH RECEPTACLE A. Per the drawing materials schedule
2.02 BENCH
A. Per the drawing materials schedule
2.03 BIKE RACK
A. Per the drawing materials schedule.
2.04 FABRICATION
A. Metal Components: Form to required shapes and sizes with true, consistent curves, lines, and angles. Separate metals from dissimilar materials to prevent electrolytic action. B. Welded Connections: Weld connections continuously. Weld solid members with full-length, full-penetration welds and hollow members with full-circumference welds. At exposed connections, finish surfaces smooth and blended so no roughness or unevenness shows after finishing and welded surface matches contours of adjoining surfaces. C. Pipes and Tubes: Form simple and compound curves by bending members in jigs to produce uniform curvature for each repetitive configuration required; maintain cylindrical cross section of member throughout entire bend without buckling, twisting, cracking, or otherwise deforming exposed surfaces of handrail and railing components.
Exhibit 3
D. Exposed Surfaces: Polished, sanded, or otherwise finished; all surfaces smooth, free of burrs, barbs, splinters, and sharpness; all edges and ends rolled, rounded, or capped. E. Factory Assembly: Assemble components in the factory to greatest extent possible to minimize field assembly. Clearly mark units for assembly in the field. 2.05 FINISHES, GENERAL A. Comply with NAAMM's "Metal Finishes Manual for Architectural and Metal Products" for recommendations for applying and designating finishes. B. Appearance of Finished Work: Variations in appearance of abutting or adjacent pieces are acceptable if they are within one-half of the range of approved Samples. Noticeable variations in the same piece are not acceptable. Variations in appearance of other components are acceptable if they are within the range of approved Samples and are assembled or installed to minimize contrast.
2.06 STEEL AND GALVANIZED STEEL FINISHES
A. Baked-Enamel, Powder-Coat Finish: Manufacturer's standard, baked, polyester, powder-
coat finish complying with finish manufacturer's written instructions for surface preparation,
including pretreatment, application, baking, and minimum dry film thickness.
2.07 EXECUTION
2.08 EXAMINATION A. Examine areas and conditions, with Installer present, for compliance with requirements for correct and level finished grade, mounting surfaces, installation tolerances, and other conditions affecting performance. 1. Proceed with installation only after unsatisfactory conditions have been corrected. 2.09 INSTALLATION, GENERAL
A. Comply with manufacturer's written installation instructions unless more stringent
requirements are indicated. Complete field assembly of site furnishings where required.
B. Unless otherwise indicated, install site furnishings concurrent to the paving.
C. Install site furnishings level, plumb, true, and securely anchored at locations indicated on
Drawings.
D. Post Setting: Set cast-in support posts in concrete footing with smooth top, shaped to shed
water. Protect portion of posts above footing from concrete splatter. Verify that posts are
set plumb or at correct angle and are aligned and at correct height and spacing. Hold posts in position during placement and finishing operations until concrete is sufficiently cured. 2.10 CLEANING E. After completing site furnishing installation, inspect components. Remove spots, dirt, and debris. Repair damaged finishes to match original finish or replace component.
END OF SECTION 12 93 00
Exhibit 3
Denton Central Fire Parking Lot Earthwork
Denton, Texas 31 00 00-1 June 23, 2017
SECTION 31 00 00
EARTHWORK
PART 1 – GENERAL 1.01 RELATED DOCUMENTS A. Geotechnical Report: Perform earthwork complying with the requirements of Geotechnical Report for the site. B. Codes and Standards: Perform earthwork complying with requirements of authorities with jurisdiction.
C. Existing Utilities: Do not interrupt existing utilities serving facilities occupied by the Owner or others except when permitted in writing by the Engineer and then only after acceptable temporary utility services have been provided. D. Limits of this section: This section shall include earthwork on site outside of building pad areas. Refer to structural section for building pad requirements. E. Reference Specification for earthwork and related products shall be the "Standard
Specifications for Public Works Improvements", latest edition as published by the North Central
Texas Council of Governments. (NCTCOG)
F. Per Landscape Architect, only backfill landscape area to a point 0.4 feet or 5 inches below the
proposed finish grade. Refer to Landscape Plans and Specifications for further instructions.
PART 2 - PRODUCTS
2.01 SOIL MATERIALS
A. Provide approved borrow soil materials from off site when sufficient approved soil materials are
not available from excavations.
B. Import any additional top soil that may be required to achieve the final grades shown in the
plans.
2.02 SATISFACTORY SOIL MATERIALS A. ASTM D 2487 soil classification groups GW, GP, GM, SW, SP, and SM; free of rock or gravel larger than 2 inches in any dimension, debris, waste, frozen materials, vegetation, or other deleterious matter.
2.03 UNSATISFACTORY SOIL MATERIALS A. ASTM D 2487 soil classification groups GC, SC, ML, MH, CL, CH, OL, OH, and PT. PART 3 - EXECUTION 3.01 PREPARATION A. Protect structures, utilities, sidewalks, pavements, and other facilities from damage caused by settlement, lateral movement, undermining, washout, and other hazards created by earthwork operations. B. Provide erosion and sedimentation control measures. C. Prevent surface water and subsurface or groundwater from entering excavations, from ponding on prepared subgrades, and from flooding project site and surrounding area. D. Protect subgrades and foundation soils from softening and damage by rain or water
accumulation and from freezing temperatures or frost.
3.02 EXPLOSIVES
A. Do not use explosives.
3.03 UNCLASSIFIED EXCAVATION
A. Excavation is unclassified and includes excavation to required subgrade elevations regardless
Exhibit 3
Denton Central Fire Parking Lot Earthwork
Denton, Texas 31 00 00-2 June 23, 2017
of character of materials and obstructions encountered.
3.04 COMPACTION A. Place backfill and fill materials in layers not more than 8 inches in loose depth for material compacted by heavy compaction equipment, and not more than 4 inches in loose depth for material compacted by hand-operated tampers. Place evenly alongside structures and utilities to required elevations. B. Compact soil to not less than the following percentages of maximum dry density according to ASTM D 698: 1. Under lawn or unpaved areas, compact the top 6 inches below subgrade and each layer of backfill or fill material to 90 percent. 2. Under walkways and pavement, compact the top 6 inches below subgrade and each layer of backfill or fill material to 95 percent.
END OF SECTION 31 00 00
Exhibit 3
Denton Central Fire Parking Lot Site Clearing
Denton, Texas 31 10 00-1 June 23, 2017
SECTION 31 10 00
SITE CLEARING
PART 1 – GENERAL 1.01 RELATED DOCUMENTS A. Drawings, specifications and general provisions of Contract, including General and Supplementary Conditions and Division 1 Specification sections, apply to work of this section. It is the responsibility of the Contractor and all subcontractors to locate information pertaining to required items of work specified or indicated elsewhere in the Contract Documents.
1.02 SUMMARY A. Protection of existing trees indicated to remain. B. Removal of trees and other vegetation. C. Topsoil stripping. D. Clearing and grubbing. E. Removing above-grade improvements. F. Removing below-grade improvements. 1.03 PROJECT CONDITIONS A. Traffic: Conduct site-clearing operations to ensure minimum interference with roads, streets, walks, and other adjacent occupied or used facilities. Do not close or obstruct streets, walks, or other occupied or used facilities without permission from authorities having jurisdiction. Provide barricading in accordance with local and state requirements.
B. Protection of Existing Improvements: Provide protections necessary to prevent damage to
existing improvements indicated to remain in place.
1. Protect improvements on adjoining properties and on Owner's property.
2. Restore damaged improvements to their original condition, as acceptable to property
owners.
C. Protection of Existing Trees and Vegetation: Protect existing trees and other vegetation
indicated to remain in place against unnecessary cutting, breaking or skinning of roots,
skinning or bruising of bark, smothering of trees by stockpiling construction materials or
excavated materials within drip line, excess foot or vehicular traffic, or parking of vehicles
within drip line. Provide temporary guards to protect trees and vegetation to be left standing.
1. Water trees and other vegetation to remain within limits of contract work as required to
maintain their health during course of construction operations.
2. Provide protection for roots over 1-1/2 inch in diameter that are cut during construction operations. Coat cut faces with an emulsified asphalt or other acceptable coating formulated to use on damaged plant tissues. Temporarily cover exposed roots with wet burlap to prevent roots from drying out; cover with earth as soon as possible. 3. Repair or replace trees and vegetation indicated to remain that are damaged by construction operations in a manner acceptable to Architect. Employ a licensed arborist to repair damage to trees and shrubs. D. Improvements on Adjoining Property: Authority for performing removal and alteration work on property adjoining Owner's property will be obtained by Owner prior to award of contract. 1. Extent of work on adjacent property is indicated on Drawings. E. Salvable Improvements: Carefully remove items indicated to be salvaged and store on Owner's premises where indicated or directed.
Exhibit 3
Denton Central Fire Parking Lot Site Clearing
Denton, Texas 31 10 00-2 June 23, 2017
1.04 EXISTING SERVICES
A. Indicated locations are approximate; determine exact locations before commencing Work.
B. Arrange and pay for disconnecting, removing, capping, and plugging utility services. Notify
affected utility companies in advance and obtain approval before starting this Work.
C. Place markers to indicate location of disconnected services. Identify service lines and
capping locations on Project Record Documents.
PART 2 - PRODUCTS (Not Applicable) PART 3 – EXECUTION
3.01 SITE CLEARING
A. Remove trees, shrubs, grass, and other vegetation, improvements, or obstructions, as required,
to permit installation of new construction. Remove similar items elsewhere on site or premises
as specifically indicated. Removal includes digging out and off-site disposal of stumps and
roots.
1. Cut minor roots and branches of trees indicated to remain in a clean and careful manner
where such roots and branches obstruct installation of new construction.
B. Topsoil is defined as friable clay loam surface soil found in a depth of not less than 4 inches. Satisfactory topsoil is reasonably free of subsoil, clay lumps, stones, and other objects over 2 inches in diameter, and without weeds, roots, and other objectionable material. 1. Strip topsoil to whatever depths encountered in a manner to prevent intermingling with underlying subsoil or other objectionable material. Remove heavy growths of grass from areas before stripping. a. Where existing trees are indicated to remain, leave existing topsoil in place within drip lines to prevent damage to root system. 2. Stockpile topsoil in storage piles in areas indicated or directed. Construct storage piles to provide free drainage of surface water. Cover storage piles, if required, to prevent wind erosion. 3. Dispose of unsuitable or excess topsoil as specified for disposal of waste material. C. Clearing and Grubbing: Clear site of trees, shrubs, and other vegetation, except for those indicated to be left standing.
1. Completely remove stumps, roots, and other debris protruding through ground surface.
2. Use only hand methods for grubbing inside drip line of trees indicated to remain.
3. Fill depressions caused by clearing and grubbing operations with satisfactory soil material,
unless further excavation or earthwork is indicated.
a. Place fill material in horizontal layers not exceeding 6 inches loose depth, and
thoroughly compact each layer to a density equal to adjacent original ground.
D. Removal of Improvements: Remove existing above-grade and below-grade improvements as
indicated and as necessary to facilitate new construction.
1. Abandonment or removal of certain underground pipe or conduits may be indicated on
mechanical or electrical drawings and is included under work of related Division 15 and 16
Sections. Removing abandoned underground piping or conduits interfering with
construction is included under this Section.
3.02 DISPOSAL OF WASTE MATERIALS A. Burning on Owner's Property: Burning is not permitted on Owner's property. B. Removal to Owner's Spoil Area: Transport waste materials and unsuitable topsoil materials to designated spoil areas on Owner's property and dispose of as directed. C. Removal from Owner's Property: Remove waste materials and unsuitable or excess topsoil from Owner's property.
END OF SECTION 31 10 00
Exhibit 3
Denton Central Fire Parking Lot Erosion and Sedimentation Controls Denton, Texas 31 25 00-1 June 23, 2017
SECTION 31 25 00 EROSION AND SEDIMENTATION CONTROLS PART 1 – GENERAL 1.01 This section will consist of the completion and implementation of a storm water pollution prevention plan (SWPPP). PART 2 – PRODUCTS 2.01 The contractor will be provided with a package outlining contractor requirements regarding the
SWPPP. In addition, reference is made to the SWPPP construction plan prepared for this project. PART 3 – EXECUTION
3.01 The contractor will be responsible for execution and implementation of the SWPPP, including
construction of all required erosion control features, reporting to TCEQ and completion of inspection
forms.
END OF SECTION 31 25 00
Exhibit 3
Denton Central Fire Parking Lot Lime Treated Base Courses Denton, Texas 31 32 13.19-1 June 23, 2017
SECTION 31 32 13.19 LIME TREATED BASE COURSES PART 1 - GENERAL 1.1 DESCRIPTION A. This item shall consist of treating subgrade, subbase, and base courses by the pulverization, addition of lime, mixing and compacting the mixed material to the required density. This item applies to natural ground, embankment, or pulverized recycled asphalt pavement base or subbase courses placed under this contract, which shall be constructed as specified herein and in conformity with the typical section, lines and grades as shown on the plans.
1.2 BASE SPECIFICATION
A. Reference Specification for lime treatment and related products shall be the "Standard
Specifications for Public Works Improvements", latest edition as published by the North Central
Texas Council of Governments. (NCTCOG).
PART 2 - PRODUCTS
2.1 MATERIALS
A. Lime shall meet NCTCOG Item 301.2. Lime slurry shall be Grade 2.
B. Percentages and thickness shall be as shown on the plans.
C. Lime shall be placed in accordance with NCTCOG Item 301.2 D. Compaction and moisture content shall be as shown on the plans. END OF SECTION 31 32 13.19
Exhibit 3
Denton Central Fire Parking Lot Portland Cement Concrete Paving Denton, Texas 32 13 13-1 June 23, 2017
SECTION 32 13 13 PORTLAND CEMENT CONCRETE PAVING PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Extent of portland cement concrete paving is shown on drawings, including curbs, gutters, walks, and paving. B. Prepared subbase is specified in "Earthwork" section. C. Concrete and related materials are specified below. D. Joint fillers and sealers are as specified on the Plans.
E. Traffic Control: Maintain access for vehicular and pedestrian traffic as required for other
construction activities. Provide barricading as required by Manual of Uniform Traffic Control
Devices, latest edition, as published by the Texas Department of Transportation.
F. Reference Specification for concrete and related products shall be the "Standard
Specifications for Public Works Improvements", latest edition as published by the North Central
Texas Council of Governments. (NCTCOG)
PART 2 - PRODUCTS
2.1 MATERIALS
A. Concrete Materials: Comply with requirements of NCTCOG Item 303.2 for concrete materials,
admixtures, bonding materials, curing materials, and others as required. All concrete, unless
noted, shall be Class "A". B. Antispalling Compound: Boiled linseed oil and mineral spirits, complying with AASHTO M-233. C. Curing and Sealing Compound: ASTM C 309, Type 2, Class B. D. Concrete Mix, Design, and Testing: Comply with requirements of applicable NCTCOG sections for concrete mix design, sampling and testing, and quality control and as herein specified. E. Paint Striping: Paint for pavement striping shall conform to NCTCOG Item 804.2 color as shown on plans. F. Use of fly ash shall comply with requirements of NCTCOG Item 303.2.4, local requirements, and shall be approved by Engineer. PART 3 - EXECUTION 3.1 PREPARATION A. Place concrete in accordance with NCTCOG Item 303.5.
B. Joints: Construct expansion, sawed dummy and construction joints true to line with face
perpendicular to surface of concrete. Construct transverse joints at right angles to centerline
unless otherwise indicated. Spacing shall be as shown on the plans.
C. Pavement strength and thickness testing shall be per NCTCOG Item 303.7.
D. Place suitable warning signs near work site to alert approaching traffic from all directions to
prevent damage to newly painted surfaces.
E. Stencil "FIRE LANE - NO PARKING" at size, color and spacing as shown on the plans.
F. Stencil "HANDICAPPED PARKING SPACE" in 4" high white block letters on blue colored
background 6" high and of appropriate length for lettering background and provide
wheelchair logo in parking stall.
1. Handicap parking space marking and signage shall comply with state and city
requirements.
END OF SECTION 32 13 13
Exhibit 3
SECTION 32 13 14
PEDESTRIAN CONCRETE & SURFACE PAVING
PART 1 - GENERAL
1.01 SUMMARY
A. This Section includes exterior cement concrete pavement for the following:
1. Sidewalks.
2. Concrete pads.
3. Footings. 4. Truncated dome pavers. 5. Decomposed Granite. 1.02 SUBMITTALS A. Product Data: For each type of product indicated. B. Design Mixtures: For each concrete pavement mixture. 1.03 QUALITY ASSURANCE A. Manufacturer Qualifications: Manufacturer of ready-mixed concrete products who complies with ASTM C 94/C 94M requirements for production facilities and equipment. B. ACI Publications: Comply with ACI 301, "Specification for Structural Concrete," unless modified by requirements in the Contract Documents. PART 2 - PRODUCTS
2.01 STEEL REINFORCEMENT A. Plain-Steel Welded Wire Reinforcement: ASTM A 185, fabricated from as-drawn steel wire into flat sheets. B. Deformed-Steel Welded Wire Reinforcement: ASTM A 497, flat sheet. C. Reinforcing Bars: ASTM A 615/A 615M, Grade 60; deformed. D. Plain Steel Wire: ASTM A 82, as drawn. E. Deformed-Steel Wire: ASTM A 496. F. Bar Supports: Bolsters, chairs, spacers, and other devices for spacing, supporting, and fastening reinforcing bars, welded wire reinforcement, and dowels in place. Manufacture bar supports according to CRSI's "Manual of Standard Practice." 2.02 CONCRETE MATERIALS A. Cementitious Material: Use the following cementitious materials, of the same type, brand, and source throughout the Project:
1. Portland Cement: ASTM C 150, Type I/II, gray. Supplement with the following:
a. Fly Ash: ASTM C 618, Class C.
B. Normal-Weight Aggregates: ASTM C 33, Class 4M coarse aggregate, uniformly graded.
Provide aggregates from a single source.
C. Water: ASTM C 94/C 94M.
D. Air-Entraining Admixture: ASTM C 260.
E. Chemical Admixtures: ASTM C 494/C 494M, of type suitable for application, certified by
manufacturer to be compatible with other admixtures and to contain not more than 0.1 percent water-soluble chloride ions by mass of cementitious material. F. Asphalt Material 2.03 CURING MATERIALS A. Absorptive Cover: AASHTO M 182, Class 2, burlap cloth. B. Moisture-Retaining Cover: ASTM C 171, polyethylene film or white burlap-polyethylene sheet. C. Water: Potable. D. Evaporation Retarder: Waterborne, monomolecular film forming; manufactured for application to fresh concrete.
Exhibit 3
E. Clear Waterborne Membrane-Forming Curing Compound: ASTM C 309, Type 1, Class B, dissipating. F. White Waterborne Membrane-Forming Curing Compound: ASTM C 309, Type 2, Class B. 2.05 RELATED MATERIALS G. Expansion- and Isolation-Joint-Filler Strips: ASTM D 1751, asphalt-saturated cellulosic fiber. 2.06 CONCRETE MIXTURES A. For sidewalks, slabs, parking, and curbs: 1. Compressive Strength 28 Days, 4000 psi. 2. Maximum Water-Cementitious Materials Ratio at Point of Placement: 0.45. 3. Slump Limit: 5 inches plus or minus 1 inch. 4. Air Content: 5-1/2 percent plus or minus 1.5 percent.
B. For footings:
1. Compressive Strength 28 Days, 5000 psi.
2. Maximum Water-Cementitious Materials Ratio at Point of Placement: 0.45.
3. Slump Limit: 5 inches plus or minus 1 inch.
4. Air Content: 5-1/2 percent plus or minus 1.5 percent.
2.07 CONCRETE MIXING
A. Ready-Mixed Concrete: Measure, batch, and mix concrete materials and concrete
according to ASTM C 94/C 94M. Furnish batch certificates for each batch discharged and used in the Work.
2.08 TRUNCATED DOME PAVERS: Charcoal, 4x8x2 ¼”, by Pavestone. . PART 3 - EXECUTION
3.01 EXAMINATION A. Proof-roll prepared base surface below concrete pavements with heavy pneumatic-tired equipment to identify soft pockets and areas of excess yielding. 3.02 EDGE FORMS AND SCREED CONSTRUCTION A. Set, brace, and secure edge forms, bulkheads, and intermediate screed guides for pavement
to required lines, grades, and elevations. Install forms to allow continuous progress of work and
so forms can remain in place at least 24 hours after concrete placement.
B. Clean forms after each use and coat with form-release agent to ensure separation from
concrete without damage.
3.03 STEEL REINFORCEMENT
A. General: Comply with CRSI's "Manual of Standard Practice" for fabricating, placing, and
supporting reinforcement.
3.04 JOINTS
A. General: Form construction, isolation, and contraction joints and tool edgings true to line with
faces perpendicular to surface plane of concrete. Construct transverse joints at right angles to
centerline, unless otherwise indicated.
B. Construction Joints: Set construction joints at side and end terminations of pavement and at locations where pavement operations are stopped for more than one-half hour unless pavement terminates at isolation joints. C. Isolation Joints: Form isolation joints of preformed joint-filler strips abutting concrete curbs, catch basins, manholes, inlets, structures, walks, other fixed objects, and where indicated. D. Contraction Joints: Form weakened-plane contraction joints, sectioning concrete into areas as indicated. Construct contraction joints per the drawing details.
Exhibit 3
E. Edging: Tool edges of pavement, gutters, curbs, and joints in concrete after initial floating with an edging tool to a 1/4-inch radius. Repeat tooling of edges after applying surface finishes. Eliminate tool marks on concrete surfaces. 3.05 CONCRETE PLACEMENT A. Moisten base to provide a uniform dampened condition at time concrete is placed. B. Comply with ACI 301 requirements for measuring, mixing, transporting, and placing concrete. C. Deposit and spread concrete in a continuous operation between transverse joints. Do not push or drag concrete into place or use vibrators to move concrete into place. D. Screed pavement surfaces with a straightedge and strike off. E. Commence initial floating using bull floats or darbies to impart an open textured and uniform surface plane before excess moisture or bleed water appears on the surface. Do not further disturb concrete surfaces before beginning finishing operations or spreading surface
treatments.
3.06 FLOAT FINISHING
A. General: Do not add water to concrete surfaces during finishing operations.
B. Float Finish: Begin the second floating operation when bleed-water sheen has disappeared
and concrete surface has stiffened sufficiently to permit operations. Float surface with power-
driven floats, or by hand floating if area is small or inaccessible to power units. Finish surfaces
to true planes. Cut down high spots and fill low spots. Refloat surface immediately to uniform granular texture. 1. Medium-to-Fine-Textured Broom Finish: Draw a soft bristle broom across float-finished
concrete surface perpendicular to line of traffic to provide a uniform, fine-line texture.
3.07 CONCRETE PROTECTION AND CURING
A. General: Protect freshly placed concrete from premature drying and excessive cold or hot temperatures. B. Comply with ACI 306.1 for cold-weather protection. C. Evaporation Retarder: Apply evaporation retarder to concrete surfaces if hot, dry, or windy conditions cause moisture loss approaching 0.2 lb/sq. ft. x h (1 kg/sq. m x h) before and during finishing operations. Apply according to manufacturer's written instructions after placing, screeding, and bull floating or darbying concrete, but before float finishing. D. Begin curing after finishing concrete but not before free water has disappeared from concrete surface. E. Curing Methods: Cure concrete by moisture curing, moisture-retaining-cover curing, curing compound or a combination of these methods. 3.08 PAVEMENT TOLERANCES A. Comply with tolerances of ACI 117 and as follows: 1. Elevation: 1/4 inch.
2. Thickness: Plus 3/8 inch, minus 1/4 inch.
3. Surface: Gap below 10-foot- long, unleveled straightedge not to exceed 1/4 inch.
4. Joint Spacing: 3 inches.
5. Contraction Joint Depth: Plus 1/4 inch, no minus.
6. Joint Width: Plus 1/8 inch, no minus.
3.09 REPAIRS AND PROTECTION
A. Remove and replace concrete pavement that is broken, damaged, or defective or that does not comply with requirements in this Section. B. Protect concrete from damage. Exclude traffic from pavement for at least 14 days after placement. C. Maintain concrete pavement free of stains, discoloration, dirt, and other foreign material. Sweep concrete pavement not more than two days before date scheduled for Substantial Completion inspections.
END OF SECTION 32 13 13
Exhibit 3
SECTION 32 13 73
CONCRETE PAVING JOINT SEALANTS
PART 1 - GENERAL
1.01 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.02 SUMMARY A. This Section includes the following:
1. Expansion and contraction joints within cement concrete pavement. B. Related Sections include the following: 1. Division 32 Section "Concrete Paving" for constructing joints in concrete pavement. 1.03 SUBMITTALS A. Product Data: For each joint-sealant product indicated. B. Product Certificates: For each type of joint sealant and accessory, signed by product manufacturer. C. Compatibility and Adhesion Test Reports: From sealant manufacturer, indicating the following: 1. Materials forming joint substrates and joint-sealant backings have been tested for compatibility and adhesion with joint sealants. 1.04 QUALITY ASSURANCE A. Installer Qualifications: An employer of workers trained and approved by manufacturer. B. Source Limitations: Obtain each type of joint sealant through one source from a single
manufacturer.
1.05 DELIVERY, STORAGE, AND HANDLING
A. Deliver materials to Project site in original unopened containers or bundles with labels
indicating manufacturer, product name and designation, color, expiration date, pot life,
curing time, and mixing instructions for multicomponent materials.
B. Store and handle materials to comply with manufacturer's written instructions to prevent their
deterioration or damage due to moisture, high or low temperatures, contaminants, or other causes. 1.06 PROJECT CONDITIONS A. Do not proceed with installation of joint sealants under the following conditions: 1. When ambient and substrate temperature conditions are outside limits permitted by joint-sealant manufacturer. 2. When joint substrates are wet or covered with frost. 3. Where joint widths are less than those allowed by joint-sealant manufacturer for applications indicated. 4. Where contaminants capable of interfering with adhesion have not yet been removed from joint substrates. PART 2 - PRODUCTS
2.01 MANUFACTURERS
A. Products: Subject to compliance with requirements, provide one of the products listed in other
Part 2 articles.
Exhibit 3
2.02 MATERIALS, GENERAL A. Compatibility: Provide joint sealants, backing materials, and other related materials that are compatible with one another and with joint substrates under conditions of service and application, as demonstrated by joint-sealant manufacturer based on testing and field experience. B. Colors of Exposed Joint Sealants: As selected by Architect from manufacturer's full range. 2.03 COLD-APPLIED JOINT SEALANTS A. Type NS Silicone Sealant for Concrete: Single-component, low-modulus, neutral-curing, nonsag silicone sealant complying with ASTM D 5893 for Type NS. 1. Available Products: a. Crafco Inc.; RoadSaver Silicone. b. Dow Corning Corporation; 888.
2.04 JOINT-SEALANT BACKER MATERIALS
A. General: Provide joint-sealant backer materials that are non-staining; are compatible with
joint substrates, sealants, primers, and other joint fillers; and are approved for applications
indicated by joint-sealant manufacturer based on field experience and laboratory testing.
B. Round Backer Rods for Cold-Applied Sealants: ASTM D 5249, Type 3, of diameter and density
required to control sealant depth and prevent bottom-side adhesion of sealant.
PART 3 - EXECUTION
3.01 EXAMINATION A. Examine joints indicated to receive joint sealants, with Installer present, for compliance with requirements for joint configuration, installation tolerances, and other conditions affecting joint-sealant performance. 1. Proceed with installation only after unsatisfactory conditions have been corrected.
3.02 PREPARATION
A. Surface Cleaning of Joints: Clean out joints immediately before installing joint sealants to
comply with joint-sealant manufacturer's written instructions.
3.03 INSTALLATION OF JOINT SEALANTS
A. General: Comply with joint-sealant manufacturer's written installation instructions for products
and applications indicated, unless more stringent requirements apply. B. Sealant Installation Standard: Comply with recommendations in ASTM C 1193 for use of joint sealants as applicable to materials, applications, and conditions indicated. C. Install backer materials of type indicated to support sealants during application and at position required to produce cross-sectional shapes and depths of installed sealants relative to joint widths that allow optimum sealant movement capability. 1. Do not leave gaps between ends of backer materials. 2. Do not stretch, twist, puncture, or tear backer materials. 3. Remove absorbent backer materials that have become wet before sealant application and replace them with dry materials. D. Install sealants using proven techniques that comply with the following and at the same time backings are installed: 1. Place sealants so they directly contact and fully wet joint substrates. 2. Completely fill recesses provided for each joint configuration. 3. Produce uniform, cross-sectional shapes and depths relative to joint widths that allow
optimum sealant movement capability.
E. Tooling of Nonsag Sealants: Immediately after sealant application and before skinning or
curing begins, tool sealants according to requirements specified below to form smooth,
uniform beads of configuration indicated; to eliminate air pockets; and to ensure contact and
adhesion of sealant with sides of joint. 1. Remove excess sealants from surfaces adjacent to joint.
Exhibit 3
2. Use tooling agents that are approved in writing by joint-sealant manufacturer and that do not discolor sealants or adjacent surfaces. F. Provide joint configuration to comply with joint-sealant manufacturer's written instructions, unless otherwise indicated. G. Provide recessed joint configuration for silicone sealants of recess depth and at locations indicated. 3.04 CLEANING A. Clean off excess sealants or sealant smears adjacent to joints as the Work progresses by methods and with cleaning materials approved by manufacturers of joint sealants and of products in which joints occur. 3.05 PROTECTION
A. Protect joint sealants during and after curing period from contact with contaminating
substances and from damage resulting from construction operations or other causes so
sealants are without deterioration or damage at time of Substantial Completion. If, despite
such protection, damage or deterioration occurs, cut out and remove damaged or
deteriorated joint sealants immediately and replace with joint sealant so installations with
repaired areas are indistinguishable from the original work.
END OF SECTION 32 13 73
Exhibit 3
SECTION 32 1400
UNIT PAVERS
PART 1 – GENERAL
1.01 SUMMARY A. Section Includes: 1. Concrete Paver Units 1.02 REFERENCES A. American Society for Testing and Materials (ASTM): 1. C 33, Standard Specification for Concrete Aggregates. 2. C 136, Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates. 3. C 140, Standard Test Methods for Sampling and Testing Concrete Masonry Units and Related Units. 5. C 936, Standard Specification for Solid Concrete Interlocking Paving Units.
6. C 979, Standard Specification for Pigments for Integrally Colored Concrete.
8. D 698, Standard Test Method for Laboratory Compaction Characteristics of Soil Using
Standard Effort (12,000 ft-lbf/ft3 (600 kN-m/m3)).
9. D 1557, Test Method for Laboratory Compaction Characteristics of Soil Using Modified
Effort (56,000 ft-lbf/ft3 (2,700 kN-m/m3)).
1.03 SUBMITTALS
A. In accordance with Conditions of the Contract and Division 1 Submittal Procedures Section.
B. Concrete pavers:
1. Two representative full-size samples of each paver type, thickness, color, finish that
indicates the range of color variation and texture expected in the finished installation.
Colors selected by Landscape Architect from manufacturer’s available colors.
2. Accepted samples become the standard of acceptance for the work.
3. Test results from an independent testing laboratory for compliance of concrete pavers with ASTM C 936. 4. Manufacturer’s catalog product data, installation instructions, and material safety data sheets for the safe handling of the specified materials and products. 1.04 QUALITY ASSURANCE A. Paving Subcontractor Qualifications: 1. Utilize an installer having successfully completed concrete paver installation similar in design, material, and extent indicated on this project. 1.05 DELIVERY, STORAGE & HANDLING A. General: Comply with Division 1 Product Requirement Section. B. Comply with manufacturer’s ordering instructions and lead-time requirements to avoid construction delays. C. Delivery: Deliver materials in manufacturer’s original, unopened, undamaged containers
packaging with identification labels intact.
1. Coordinate delivery and paving schedule to minimize interference with normal use of
buildings adjacent to paving.
2. Deliver concrete pavers to the site in steel banded, plastic banded or plastic wrapped
packaging capable of transfer by forklift or clamp lift.
3. Unload pavers at job site in such a manner that no damage occurs to the product.
D. Storage and Protection: Store materials protected such that they are kept free from mud, dirt,
and other foreign materials. Store concrete paver cleaners and sealers per manufacturer’s instructions.
1.06 PROJECT/SITE CONDITIONS
Exhibit 3
A. Environmental Requirements: 1. Do not install pavers during heavy rain or snowfall. 1.07 MAINTENANCE A. Extra Materials: Provide 10 square feet additional material for use by owner for maintenance and repair. B. Pavers shall be from the same production run as installed materials.
PART 2 – PRODUCTS
2.01 CONCRETE PAVERS A. Manufacturer: Per Materials Schedule. B. Concrete Pavers: 1. Paver Type: Per drawing legend. a. Material Standard: Comply with material standards set forth in ASTM C 936. b. Color and finish: See Materials Schedule. c. Average Compressive Strength (C140): 8000 psi (55 MPa) with no individual unit under 7200 psi (50 MPa) per ASTM C 140. d. Average Water Absorption (ASTM C 140): 5% with no unit greater than 7%. e. Freeze/Thaw Resistance (ASTM C 1645): 28 freeze-thaw cycles with no greater loss than 225 g/m2 of paver surface area or no greater loss than 500 g/m2 of paver surface area after 49 freeze-thaw cycles. Freeze-thaw testing requirements shall be waived for applications not exposed to freezing conditions. 2.02 PRODUCT SUBSTITUTIONS
A. If approved by the Landscape Architect as equal.
PART 3 – EXECUTION
3.01 EXAMINATION
A. Acceptance of Site Verification of Conditions:
1. General Contractor shall inspect, accept and certify in writing to the paver installation subcontractor that site conditions meet specifications for the following items prior to installation of interlocking concrete pavers. a. Verify that subgrade preparation, compacted density and elevations conform to specified requirements. b. Verify that geotextiles, if applicable, have been placed according to drawings and specifications. c. Verify that concrete base material conforms to specified requirements in relation to elevation and level tolerances. e. Verify location, type, and elevations of edge restraints, utility structures, and drainage inlets. 3.02 PREPARATION A. Verify concrete base is cured and dry, certified by General Contractor as meeting material, installation and grade specifications. 3.03 INSTALLATION A. Install pavers on pedestals per manufacturer’s recommendations. B. Lay pavers in pattern(s) shown on drawings. Place units hand tight without using hammers. C. Provide joints between pavers per the drawings. Mortar in place those pavers installed over a
concrete sub-base.
D. Joint (bond) lines shall not deviate more than ±1/2 in. over 50 ft. from string lines.
E. Fill gaps at the edges of the paved area with cut pavers or edge units.
F. Cut pavers to be placed along the edge with a double blade paver splitter or masonry saw.
Exhibit 3
3.05 FIELD QUALITY CONTROL A. The final surface tolerance from grade elevations shall not deviate more than ±3/8 in. under a 10 ft. straightedge. B. Check final surface elevations for conformance to drawings. C. The surface elevation of pavers shall be 1/8 in. to 1/4 in. above adjacent drainage inlets, concrete collars or channels. D. Lippage: No greater than 1/8 in. difference in height between adjacent pavers. 3.06 PROTECTION A. After work in this section is complete, the General Contractor shall be responsible for protecting work from damage due to subsequent construction activity on the site.
END OF SECTION 32 14 00
Exhibit 3
SECTION 32 84 00
PLANTING IRRIGATION
PART 1 - GENERAL
1.01 SUMMARY A. This Section includes piping, valves, sprinklers, specialties, controls, and wiring for automatic control irrigation system. 1.02 DEFINITIONS A. Lateral Piping: Downstream from control valves to sprinklers, specialties, and drain valves. Piping is under pressure during flow. B. Irrigation Main Piping: Downstream from point of connection to water distribution piping to, and including, control valves. Piping is under water-distribution-system pressure.
1.03 SUBMITTALS
A. Product Data: Include pressure ratings, rated capacities, and settings of selected models for
the following:
1. System valves.
2. Specialty valves.
3. Control-valve boxes.
4. Sprinklers.
5. Irrigation specialties.
6. Controllers. B. Operation and maintenance data.
1.04 QUALITY ASSURANCE
A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70,
Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for intended use. PART 2 - PRODUCTS
2.01 MANUFACTURERS
A. As indicated on the drawings.
2.02 PIPES, TUBES, AND FITTINGS
A. PVC Pipe: ASTM D 1785, PVC 1120 compound, Class 200.
1. PVC Socket Fittings, Schedule 40: ASTM D 2466. 2.03 GENERAL-DUTY VALVES A. PVC Ball Valves: MSS SP-122, nonunion type, with full-port ball, socket or threaded detachable end connectors, and pressure rating not less than 150 psig. 2.04 SPECIALTY VALVES A. Plastic Automatic Control Valves: Molded-plastic body, normally closed, diaphragm type with manual flow adjustment, and operated by 24-V ac solenoid. 1. Manufacturer as indicated on the drawings. B. Quick-Couplers: Factory-fabricated, bronze or brass, two-piece assembly. Include coupler water-seal valve; removable upper body with spring-loaded or weighted, rubber-covered cap; hose swivel with ASME B1.20.7, 3/4-11.5NH threads for garden hose on outlet; and operating key. 1. Manufacturer as indicated on the drawings.
Exhibit 3
C. Drainage Backfill: Cleaned gravel or crushed stone, graded from 3/4 inch minimum to 1 inch maximum. 2.05 SPRINKLERS A. Description: Plastic housing and corrosion-resistant interior parts designed for uniform coverage over entire spray area indicated, at available water pressure. 1. Manufacturer as indicated on the drawings. 2.06 AUTOMATIC-CONTROL SYSTEM A. Manufacturer as indicated on the drawings. PART 3 - EXECUTION
3.01 EARTHWORK A. Install piping and wiring in sleeves under sidewalks and paving per the drawings. B. Provide minimum cover over top of underground piping according to the following: 1. Irrigation Main Piping: Minimum depth of 18 inches. 2. Lateral Piping: 12 inches. 3. Sleeves: 18 inches. 3.02 PIPING APPLICATIONS A. Underground Irrigation Main Piping: PVC pipe and socket fittings; and solvent-cemented joints per the drawings. B. Lateral Piping: Class 200 PVC pipe and socket fittings per the drawings and details. C. Sleeves: Class 200 PVC pipe and socket fittings; and solvent-cemented joints. 3.03 VALVE APPLICATIONS
A. Control Valves: Per the drawings.
3.04 INSTALLATION
A. Install piping free of sags and bends.
B. Install groups of pipes parallel to each other, spaced to permit valve servicing.
C. Install fittings for changes in direction and branch connections.
D. Install unions adjacent to valves and to final connections to other components.
E. Lay piping on solid base, uniformly sloped without humps or depressions. F. Control Valves: Install in control-valve box. G. Flush circuit piping with full head of water and install sprinklers after hydrostatic test is completed. H. Locate sprinkler heads to maintain a minimum distance of 2 inches from paved surfaces. I. Install freestanding controllers on precast concrete bases per the drawing. J. Install control cable in same trench as irrigation piping and at least 2 inches below or beside piping. Provide conductors of size not smaller than recommended by controller manufacturer. Install cable in separate sleeve under paved areas if irrigation piping is installed in sleeve. 3.05 FIELD QUALITY CONTROL A. Perform the following field tests and inspections and prepare test reports: 1. Leak Test: After installation, charge system and test for leaks. Repair leaks and retest until no leaks exist.
2. Operational Test: After electrical circuitry has been energized, operate controllers and
automatic control valves to confirm proper system operation.
3. Test and adjust controls and safeties. Replace damaged and malfunctioning controls
and equipment.
B. Remove and replace units and re-inspect as specified above.
3.06 ADJUSTING
A. Adjust settings of controllers.
Exhibit 3
B. Adjust automatic control valves to provide flow rate of rated operating pressure required for each sprinkler circuit. C. Adjust sprinklers so they will be flush with, or not more than 1/2 inch above, finish grade.
END OF SECTION 32 84 00
Exhibit 3
SECTION 32 93 00
PLANTS
PART 1 - GENERAL
1.01 SUMMARY
A. Section Includes:
1. Trees. 2. Ornamental Grasses. 3. Wetland Plugs 1.02 DEFINITIONS
A. Backfill: The earth used to replace or the act of replacing earth in an excavation. B. Finish Grade: Elevation of finished surface of planting soil. C. Planting Soil: Native or imported topsoil, manufactured topsoil, or surface soil modified to become topsoil; mixed with soil amendments. D. Subgrade: Surface or elevation of subsoil remaining after completing excavation, or top surface of a fill or backfill, before placing planting soil. E. Subsoil: All soil beneath the topsoil layer of the soil profile, and typified by the lack of organic matter and soil organisms. 1.03 SUBMITTALS A. Product Data: For each type of product indicated. B. Product certificates. 1.04 QUALITY ASSURANCE A. Installer's Field Supervision: Require Installer to maintain an experienced full-time supervisor
on Project site when planting is in progress.
B. Provide quality, size, genus, species, and variety of exterior plants indicated, complying with
applicable requirements in ANSI Z60.1, "American Standard for Nursery Stock."
1.05 DELIVERY, STORAGE, AND HANDLING
A. Do not prune trees before delivery. Protect bark, branches, and root systems from sun
scald, drying, sweating, whipping, and other handling and tying damage. Do not bend or
bind-tie trees or shrubs in such a manner as to destroy their natural shape. Provide
protective covering of exterior plants during delivery. Do not drop exterior plants during delivery and handling. B. Handle planting stock by root ball. C. Deliver exterior plants after preparations for planting have been completed and install immediately. If planting is delayed more than six hours after delivery, set exterior plants and trees in shade, protect from weather and mechanical damage, and keep roots moist. 1.06 WARRANTY A. Special Warranty: Installer's standard form in which Installer agrees to repair or replace plantings that fail in materials, workmanship, or growth within specified warranty period. 1. Failures include, but are not limited to, the following: a. Death and unsatisfactory growth, except for defects resulting from lack of adequate maintenance, neglect, abuse by Owner, or incidents that are beyond Contractor's control. b. Structural failures including plantings falling or blowing over.
c. Warranty Periods from Date of Substantial Completion:
d. Trees and Plants: One year.
Exhibit 3
1.07 MAINTENANCE SERVICE A. Initial Maintenance Service: Provide full maintenance by skilled employees of landscape Installer. Maintain as required in Part 3. Begin maintenance immediately after each area is planted and continue until plantings are acceptably healthy and well established, but for not less than maintenance period below. 1. Maintenance Period for Trees and Plants: Three months from date of planting completion. PART 2 - PRODUCTS
2.01 TREE AND PLANT MATERIAL
A. General: Furnish nursery-grown trees and shrubs complying with ANSI Z60.1, with healthy root systems developed by transplanting or root pruning. Provide well-shaped, fully branched, healthy, vigorous stock free of disease, insects, eggs, larvae, and defects such as knots, sun scald, injuries, abrasions, and disfigurement. B. Root-Ball Depth: Furnish trees and shrubs with root balls measured from top of root ball, which shall begin at root flare according to ANSI Z60.1. Root flare shall be visible before planting. C. Provide container-grown trees. D. Plant sizes indicated on Drawings are sizes after pruning. 2.02 TOPSOIL A. Topsoil: 1. Topsoil Source: Reuse surface soil stockpiled on-site. Verify suitability of stockpiled surface soil to produce topsoil. Clean surface soil of roots, plants, sod, stones, clay lumps, and other extraneous materials harmful to plant growth.
2.03 ORGANIC SOIL AMENDMENTS
A. Compost: Well-composted, stable, and weed-free organic matter, pH range of 5.5 to 8;
moisture content 35 to 55 percent by weight; 100 percent passing through 1-inch sieve;
soluble salt content of 5 to 10 decisiemens/m.
2.04 FERTILIZER
A. Slow-Release Fertilizer: Granular or pelleted fertilizer consisting of 50 percent water-insoluble nitrogen, phosphorus, and potassium in the following composition: 1. Composition: 20 percent nitrogen, 10 percent phosphorous, and 10 percent potassium, by weight. 2.05 MULCHES A. Organic Mulch: Ground or shredded bark. 2.06 PLANTING SOIL MIX A. Planting Soil Mix: Mix topsoil with the following soil amendments in the following quantities: 1. Install 3” of loose compost, then till into 6” of topsoil for a total prepared soil depth of 9”. PART 3 - EXECUTION
3.01 PLANTING BED ESTABLISHMENT
A. Per 2.6A. Remove stones larger than 1 inch in any dimension and sticks, roots, rubbish, and
other extraneous matter and legally dispose of them off Owner's property. B. Finish Grading: Grade planting beds to a smooth, uniform surface plane with loose, uniformly fine texture. Roll and rake, remove ridges, and fill depressions to meet finish grades.
Exhibit 3
3.02 TREES AND PLANTS A. Excavation of Pits and Trenches: Excavate circular pits with sides sloped inward. Trim base leaving center area raised slightly to support root ball and assist in drainage. Do not further disturb base. Scarify sides of plant pit smeared or smoothed during excavation. 1. Excavate at least 12 inches wider than root spread and deep enough to accommodate vertical roots for bare-root stock. B. Before planting, verify that root flare is visible at top of root ball according to ANSI Z60.1. C. Stock with Root Balls: Set trees and plants plumb and in center of pit or trench with top of root ball 1 inch above adjacent finish grades. 1. Container Grown: Carefully remove root ball from container without damaging root ball or plant. D. Organic Mulching: Apply 3-inch average thickness of organic mulch. Do not place mulch within 3 inches of trunks or stems.
3.03 TREE PRUNING
A. Remove only dead, dying, or broken branches. Do not prune for shape.
3.04 PLANTING BED MULCHING
A. Mulch backfilled surfaces of planting beds and other areas indicated. Provide mulch ring
around trees in lawn areas.
3.05 PLANT MAINTENANCE A. Tree and Plant Maintenance: Maintain plantings by pruning, cultivating, watering,
weeding, fertilizing, restoring planting saucers, and resetting to proper grades or vertical
position, as required to establish healthy, viable plantings. Spray or treat as required to
keep and plants free of insects and disease.
B. Ground Cover and Plant Maintenance: Maintain and establish plantings by watering, weeding, fertilizing, mulching, and other operations as required to establish healthy, viable plantings. C. Protect exterior plants from damage due to landscape operations, operations by other contractors and trades, and others. Maintain protection during installation and maintenance periods. Treat, repair, or replace damaged plantings.
END OF SECTION 32 93 00
Exhibit 3
Denton Central Fire Parking Lot Storm Drainage Utilities Denton, Texas 33 40 00-1 June 23, 2017
SECTION 33 40 00 STORM DRAINAGE UTILITIES PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Reference Specification for storm sewerage and related products shall be the "Standard Specifications for Public Works Improvements", latest edition as published by the North Central Texas Council of Governments. (NCTCOG) B. Utility Compliance: Comply with local utility regulations and standards pertaining to storm sewerage.
PART 2 - PRODUCTS
2.1 MATERIALS
A. Pipe material as indicated on plans and in conformance with NCTCOG Items 501.6 or 501.23.
B. Concrete: Portland cement mix, Class "A" (NCTCOG Item 303.2), except where noted.
1. Cement: ASTM C 150, Type II.
2. Fine Aggregate: ASTM C 33, sand.
3. Coarse Aggregate: ASTM C 33, crushed gravel.
4. Water: Potable.
C. Reinforcement: Steel conforming to the following:
1. Reinforcement Bars: ASTM A 615, Grade 60, deformed.
D. Plastic Underground Warning Tapes: Polyethylene plastic tape, 6 inches wide by 4 mils thick, solid green in color with continuously-printed caption in black letters "CAUTION - SEWER LINE BURIED BELOW." E. Inlets, headwall and catch basins shall be in accordance with local requirements. PART 3 - EXECUTION 3.1 PREPARATION A. Complete work in conformance with local requirements and manufacturer’s recommendations and NCTCOG Item 508. B. Inlets, headwall and catch basins shall be installed in accordance with local requirements. END OF SECTION 33 40 00
Exhibit 3
Denton Central Fire Parking Lot Foundation and Drainage Denton, Texas 33 46 13.13 -1 June 23, 2017
SECTION 33 46 13.13 FOUNDATION AND DRAINAGE PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. This section includes Foundation French Drains. B. Reference Specification for earthwork and related products shall be the "Standard Specifications for Public Works Improvements", latest edition as published by the North Central Texas Council of Governments. (NCTCOG) PART 2 - PRODUCTS
2.1 MATERIALS
A. Materials for Foundation French Drains shall meet requirements shown on plans and in
conformance with NCTCOG and local requirements.
B. Soil material - Filtering Material: Evenly graded mixture of natural or crushed gravel or crushed
stone and natural sand with 100 percent passing a 1-1/2" sieve and 0-5 percent passing a No.
50 sieve.
PART 3 - EXECUTION
3.1 PREPARATION
A. Complete work in conformance with local requirements and manufacturer’s recommendations. B. Testing Drain Lines: Test or check lines before backfilling to assure free flow. Remove obstructions, replace damaged components, and retest system until satisfactory. END OF SECTION 33 46 13.13
Exhibit 3