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7103-32 1313 BSD-Concrete Paving-Addendum 317190 / American Legion Senior Center 32 1313 - 1 CONCRETE PAVING SECTION 32 1313 CONCRETE PAVING PART 1 GENERAL 1.01 RELATED REQUIREMENTS A.Section 03 1000 - Concrete Forming and Accessories. B.Section 03 2000 - Concrete Reinforcing. C.Section 03 3000 - Cast-in-Place Concrete. D.Section 31 2200 - Grading: Preparation of site for paving and base and preparation of subsoil at pavement perimeter for planting. E.Section 31 2323 - Fill: Compacted subbase for paving. 1.02 PRICE AND PAYMENT PROCEDURES A.Concrete paving is to be provided by the unit price method. B.See Section 01 2200 - Unit Prices, for additional unit price requirements. 1.03 REFERENCE STANDARDS A.ACI 211.1 - Standard Practice for Selecting Proportions for Normal, Heavyweight, and Mass Concrete; 1991 (Reapproved 2009). B.ACI 301 - Specifications for Structural Concrete; 2016. C.ACI 305R - Guide to Hot Weather Concreting; 2010. D.ACI 306R - Guide to Cold Weather Concreting; 2016. E.ASTM A615/A615M - Standard Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement; 2016. F.ASTM C33/C33M - Standard Specification for Concrete Aggregates; 2016, with Editorial Revision (2016). G.ASTM C39/C39M - Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens; 2017b. H.ASTM C94/C94M - Standard Specification for Ready-Mixed Concrete; 2017a. I.ASTM C309 - Standard Specification for Liquid Membrane-Forming Compounds for Curing Concrete; 2011. J.ASTM C618 - Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete; 2015. K.ASTM D1751 - Standard Specification for Preformed Expansion Joint Filler for Concrete Paving and Structural Construction (Nonextruding and Resilient Bituminous Types); 2004, with Editorial Revision (2013). L.ASTM D1752 - Standard Specification for Preformed Sponge Rubber Cork and Recycled PVC Expansion Joint Fillers for Concrete Paving and Structural Construction; 2004a (Reapproved 2013). PART 2 PRODUCTS 2.01 PAVING ASSEMBLIES A.Comply with applicable requirements of ACI 301. B.Design paving for parking and residential streets. C.Concrete Sidewalks and Median Barrier: 3,000 psi 28 day concrete, 4 inches thick, buff color Portland cement, exposed aggregate finish. D.Parking Area Pavement: 4,000 psi 28 day concrete, 5 inches thick, 6 by 6 - W2.9 by W2.9 mesh reinforcement, wood float finish. 17190 / American Legion Senior Center 32 1313 - 2 CONCRETE PAVING 2.02 FORM MATERIALS A.Form Materials: As specified in Section 03 1000, conform to ACI 301. B.Joint Filler: Preformed; non-extruding bituminous type (ASTM D1751) or sponge rubber or cork (ASTM D1752). 2.03 REINFORCEMENT 2.04 CONCRETE MATERIALS A.Obtain cementitious materials from same source throughout. B.Concrete Materials: As specified in Section 03 3000. C.Fiber Reinforcement: Synthetic fibers shown to have long-term resistance to deterioration when in contact with alkalis and moisture; 1/2 inch length. 2.05 ACCESSORIES 2.06 CONCRETE MIX DESIGN A.Proportioning Normal Weight Concrete: Comply with ACI 211.1 recommendations. B.Concrete Strength: Establish required average strength for each type of concrete on the basis of trial mixtures, as specified in ACI 301. 1.For trial mixtures method, employ independent testing agency acceptable to Architect for preparing and reporting proposed mix designs. C.Fiber Reinforcement: As required by the City of Denton 2.07 MIXING A.Transit Mixers: Comply with ASTM C94/C94M. PART 3 EXECUTION 3.01 EXAMINATION A.Verify compacted subgrade is acceptable and ready to support paving and imposed loads. B.Verify gradients and elevations of base are correct. 3.02 SUBBASE A.See Section 32 1123 for construction of base course for work of this Section. 3.03 FORMING A.Place and secure forms to correct location, dimension, profile, and gradient. 3.04 COLD AND HOT WEATHER CONCRETING A.Follow recommendations of ACI 305R when concreting during hot weather. B.Follow recommendations of ACI 306R when concreting during cold weather. C.Do not place concrete when base surface temperature is less than 40 degrees F, or surface is wet or frozen. 3.05 PLACING CONCRETE A.Ensure reinforcement, inserts, embedded parts, formed joints and chairs are not disturbed during concrete placement. 3.06 JOINTS A.Place 3/8 inch wide expansion joints at 12 foot intervals and to separate paving from vertical surfaces and other components and in pattern indicated. 3.07 FINISHING A.Area Paving: Light broom, texture perpendicular to pavement direction. B.Sidewalk Paving: Light broom, texture perpendicular to direction of travel with troweled and radiused edge 1/4 inch radius. 17190 / American Legion Senior Center 32 1313 - 3 CONCRETE PAVING 3.08 FIELD QUALITY CONTROL A.An independent testing agency will perform field quality control tests, as specified in Section 01 4000 - Quality Requirements. 1.Provide free access to concrete operations at project site and cooperate with appointed firm. 2.Submit proposed mix design of each class of concrete to inspection and testing firm for review prior to commencement of concrete operations. B.Compressive Strength Tests: ASTM C39/C39M; for each test, mold and cure four concrete test cylinders. Obtain test samples for every 100 cu yd or less of each class of concrete placed. 1.Take one additional test cylinder during cold weather concreting, cured on job site under same conditions as concrete it represents. 3.09 PROTECTION A.Immediately after placement, protect pavement from premature drying, excessive hot or cold temperatures, and mechanical injury. B.Do not permit vehicular traffic over pavement for 7 days minimum after finishing. END OF SECTION 32 1313