Tiêu đề 321313-Concrete Pavement.pdf ✅

PORTLAND CEMENT CONCRETE PAVEMENT 32 13 13 - 1 SECTION 32 13 13 - PORTLAND CEMENT CONCRETE PAVEMENT PART 1 - GENERAL 1.01 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including Division 1 General Requirements and Specific Requirements, apply to this Section. B. "Form 818" shall mean the State of Connecticut, Department of Transportation Standard Specifications for Roads, Bridges and Incidental Construction, Form 818 or its latest edition and any supplemental specifications. 1.02 SUMMARY A. This Section includes the materials, labor, installation and incidental costs for the installation of subbase material, base materials, and portland cement concrete as follows: 1. Reinforced concrete pavement 2. Concrete curb ramps 3. Concrete walls 4. Concrete sidewalk B. Coordinate the work of this Section with Section 32 12 16 - Bituminous Concrete Pavement and Markings. 1.03 RELATED SECTIONS A. Section 32 12 16 - Bituminous Concrete Pavement and Markings 1.04 DEFINITIONS A. Cementitious Materials: Portland cement alone or in combination with one or more of blended hydraulic cement, expansive hydraulic cement, fly ash and other pozzolans, ground granulated blast-furnace slag, and silica fume. 1.05 SUBMITTALS A. Product Data: For each type of manufactured material and product indicated. B. Design Mixes: For each concrete pavement mix. C. Material Test Reports: From a qualified testing agency indicating and interpreting test results for compliance of the following with requirements indicated, based on comprehensive testing of current materials. Contractor shall pay for all testing of concrete materials. D. Material Certificates: Signed by manufacturers certifying that each of the following materials complies with requirements:
PORTLAND CEMENT CONCRETE PAVEMENT 32 13 13 - 2 1. Cementitious materials and aggregates 2. Steel reinforcement and reinforcement accessories 3. Admixtures 4. Curing compounds 5. Applied finish materials (i.e., traffic paint) 6. Joint fillers 1.06 QUALITY ASSURANCE A. Materials and methods of construction shall comply with the following standards: 1. American Society for Testing and Materials (ASTM) 2. American Concrete Institute (ACI) 3. State of Connecticut DOT Standard Specifications (Form 818) B. Installer Qualifications: An experienced installer who has completed pavement work similar in material, design, and extent to that indicated for this Project and whose work has resulted in construction with a record of successful in-service performance. C. Manufacturer Qualifications: Manufacturer of ready-mixed concrete products complying with ASTM C 94 requirements for production facilities and equipment. 1. Manufacturer must be certified according to the National Ready Mix Concrete Association's Plant Certification Program. D. Testing Agency Qualifications: An independent testing agency, acceptable to authorities having jurisdiction, qualified according to ASTM C 1077 and ASTM E 329 shall be paid by the contractor to conduct the testing indicated, as documented according to ASTM E 548. E. Source Limitations: Obtain each type or class of cementitious material of the same brand from the same manufacturer's plant and each aggregate from one source. Do not change source of brands of cement, aggregate materials, or batching plant during course of work. F. ACI Publications: Comply with all ACI requirements unless modified by the requirements of the Contract Documents. G. Concrete Testing Service: Engage a qualified independent testing agency to perform material evaluation tests and to design concrete mixes. H. High Performance Building Requirements: 1. Adhesives or sealants used for work in this section for interior applications shall meet the requirements of Division 1, Section 018113 “Volatile Organic Compound (VOC) Limits for Adhesives, Sealants, Paints and Coatings”, where applicable. 2. Materials manufactured within a radius of 500 miles from the project site where all or a portion of the raw resources also originate within a radius of 500 miles
PORTLAND CEMENT CONCRETE PAVEMENT 32 13 13 - 3 shall be documented in accordance with the High Performance Building Submittal Requirements of this Section. 3. Materials that contain recycled content shall be documented in accordance with the High Performance Building Submittal Requirements of this Section. 1.07 PROJECT CONDITIONS A. Traffic Control: Maintain access for vehicular and pedestrian traffic as required for other construction activities. PART 2 - PRODUCTS 2.01 FORMS A. Forms shall conform to Article 8.11.03-3 and 9.21.03-3 of Form 818, latest revision. B. Form-Release Agent: Commercially formulated form-release agent that will not bond with, stain, or adversely affect concrete surfaces and will not impair subsequent treatments of concrete surfaces. 2.02 STEEL REINFORCEMENT A. Plain-Steel Welded Wire Fabric: ASTM A 185, fabricated from as-drawn steel wire into flat sheets. B. Reinforcement Bars: ASTM A 615, Grade 60, deformed bars. C. Plain Steel Wire: ASTM A 82, as drawn. D. Joint Dowel Bars: ASTM A 615, Grade 60, plain steel bars. E. Tie Bars: ASTM A 615, Grade 60, deformed. F. Bar Supports: Bolsters, chairs, spacers, and other devices for spacing, supporting, and fastening reinforcement bars, welded wire fabric, and dowels in place. Manufacture bar supports according to CRSI's "Manual of Standard Practice" from steel wire, plastic, or precast concrete or fiber-reinforced concrete of greater compressive strength than concrete, and as follows: 1. Equip wire bar supports with sand plates or horizontal runners where base material will not support chair legs.
PORTLAND CEMENT CONCRETE PAVEMENT 32 13 13 - 4 2.03 CONCRETE MATERIALS A. General: Use the same brand and type of cementitious material from the same manufacturer throughout the Project. B. Concrete: Conform to the requirements of Form 818, Article M.03.01, Class "C" and ASTM C-94. Batch mixing at project site not acceptable. C. Compressive strength: 3,000 psi at 28 days. D. Entrained air: 5 to 7%. E. Reactive aggregates and calcium chloride are not allowed. F. Water: Potable. 2.04 ADMIXTURES A. General: Admixtures certified by manufacturer to contain not more than 0.1 percent water-soluble chloride ions by mass of cement and to be compatible with other admixtures. B. Air-Entraining Admixture: ASTM C 260. C. Water-Reducing Admixture: ASTM C 494, Type A. D. High-Range, Water-Reducing Admixture: ASTM C 494, Type F. 2.05 CURING MATERIALS A. Conform to Article 4.01.03, Item F7 "Curing", Form 818. 2.06 RELATED MATERIALS A. Expansion- and Isolation-Joint-Filler Strips: ASTM D 1751, asphalt-saturated cellulosic fiber. B. Premolded Joint Filler Strips: ASTM D-994, premolded, resilient non-extruding joint filler conforming to the requirements of AASHTO M213. C. Thickness and depth of expansion- and isolation-joint filler as indicated on the drawings. D. Pavement-Marking Paint: Latex, water-base emulsion; ready mixed; complying with FS TT-P-1952. 1. Color: Blue for handicapped requirements, yellow for fire lanes, white elsewhere.