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C. Store units off ground in manner that will ensure against chipping,cracking,distortion, <br /> staining or other damage. <br /> PART 2 PRODUCTS <br /> 2.1 MATERIALS AND MANUFACTURERS <br /> A. Manufacturers: Machine made precast,prestressed hollow-core slabs of uniform <br /> thickness by Spancrete,Molin Concrete Products,Wells Concrete Products <br /> B. Materials: <br /> 1. Portland Cement,Aggregates,Water and Admixtures: As specified in Section 3300- <br /> Cast-In-Place Concrete and recommended by deck manufacturer. Do not use <br /> materials containing calcium chloride in precast,prestressed concrete. <br /> 2. Strands: Uncoated,7-wire,stress-relieved strand,ASTM A416-Grade 250K or <br /> 270K. <br /> 3. Reinforcing Steel: <br /> a. Bars: ASTM A615. <br /> b. Wire,Cold Drawn Steel: ASTM A82. <br /> c. Welded Steel Wire Fabric: ASTM A185. <br /> d. Welded Deformed Steel Fabric: ASTM A497. <br /> 4. Structural Steel Shapes and Plates: ASTM A36. <br /> 5. Ceiling Support Inserts: Provide at spacings not exceeding 4 feet o.c.each way. <br /> Type used shall be acceptable to Architect. <br /> 6. Bearing Pads,Grout and Sealant: As recommended by deck manufacturer. Sealant <br /> color shall be selected by Architect. Bearing pads shall be non-staining. <br /> 2.2 FABRICATION <br /> A. Fabricate units in accordance with reviewed shop drawings and dimensional tolerances of <br /> PCI MNL-116. <br /> B. Fabricate from concrete having minimum compressive strength of 5,000 psi at 28 days of <br /> age. <br /> ADDENDUM#1 <br /> 1607.001 -ORONO ICE ARENA(CP-2) Page 03412 -3 <br />