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CAST -IN-PLACE CONCRETE <br />Section 03300 <br />15-1207 <br />2. Licensed Weighmaster to positively identify materials as to quantity and to certify <br />to each load by ticket. <br />3. Ticket shall be transmitted to Project Inspector by truck driver with load identified <br />thereon. Project Inspector will not accept load without load ticket identifying mix <br />and will keep daily record of pours, identifying each truck, its load and time of <br />receipt and will transmit two copies of record to DSA. <br />4. Do not add water at the site to concrete mixes with a maximum specified WCR <br />unless the water content at batch time provides for a WCR less than specified <br />and this provision, including the quantity of water which may be added at the site, <br />is specifically noted on the Mix Design and Certification by the mix preparer. <br />5. At end of project, Weighmaster shall furnish affidavit to DSA on form <br />satisfactory to DSA, certifying that all concrete furnished conforms in every <br />particular and to proportions established by mix designs. <br />2.04 MATERIALS TESTING <br />A. Materials testing of concrete and continuous batch plant inspection shall be provided unless <br />waived in accordance CBC Section 1704A.4.3 and approved by Structural Engineer and <br />DSA. <br />B. Testing of concrete shall be performed per article 3.08 of this specification. <br />2.05 EQUIPMENT <br />A. Handling and mixing of concrete: Project Inspector may order removal of any equipment <br />which in his opinion is insufficient or in any way unsuitable. <br />PART 3 - EXECUTION <br />3.01 APPROVAL OF FORMS AND REINFORCEMENTS <br />A. Forms and reinforcements are subject to approval by the Project Inspector, and notice of <br />readiness to place first pour shall be given to DSA, Architect and Structural Engineer 48 <br />hours prior to placement of concrete. Before placing concrete, clean tools, equipment and <br />remove all debris from areas to receive concrete. Clean all reinforcing and other embedded <br />items of all coatings and soil that may impair bond with concrete. <br />3.02 PLACEMENT OF VAPOR BARRIER <br />A. Install vapor barrier per manufacturer's instructions, illustrations, ASTM E 1643 "Standard <br />Practice for Installation of Water Vapor Retarders Used in Contact with Earth or Granular Fill <br />Under Slabs" per manufacturer's recommendations and as follows: <br />1. Level and tamp or roll gravel below slabs to minimize sharp edges. <br />2. Place Vapor Barrier with the longest dimension parallel with the direction of the pour. <br />3. Lap Vapor Barrier up and seal against foundation walls with the specified tape. <br />4. Lap joints 6 inches and seal with the specified tape. <br />5. Seal all penetrations with pipe boots made from Vapor Barrier and specified tape. <br />6. Protect Vapor Barrier from damage during installation of reinforcing steel and utilities. <br />7. Repair damaged areas by creating patches with vapor barrier material sized large <br />enough to overlap damaged area by 6 -inches. Tape all four sides with specified tape. <br />C: <br />