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F. Moisture-Cover Curing (used when high performance coatings are scheduled): Waterproof paper complying with <br /> ASTM C171,opaque polyethylene sheeting complying with AASHTO M171 or Burlene. <br /> G. Slab Joint Key: Pre-formed asphalt hardboard,Brock-White 1/4"or equivalent product by W.R.Meadows. <br /> H. Dovetail Slots: Dur-O-Wall D/A 100. <br /> I. Non-Slip Aggregate: "Buco Non-Slip"by Euclid Chemical Company or equivalent product by A.C. Horn,L&M <br /> Construction Chemicals. <br /> J. Waterstop Mastic: Brock White"Waterstop Plus"or equivalent product by American Colloid Company. <br /> K. Vapor Barrier and Sheathing Tape: 6 mil poly;3M#8086 contractor sheathing tape. <br /> 2.03 CONCRETE N=S <br /> A. Type and Strength: <br /> 1. Compressive Strength: In place, at 28 days, minimum as follows (unless indicated otherwise by structural <br /> drawings): <br /> Interior slabs on grade 3,500 psi <br /> Topping,footings,piers 3,000 psi <br /> All other concrete,including all concrete exposed to weather 4,000 psi <br /> 2. Following concrete types shall contain%%-7%z%entrained air: <br /> a. Exterior sidewalks,aprons and slabs <br /> b. Semi-exterior slabs at overhead doors,loading dock,etc. <br /> C. Exterior walls,piers,columns,etc. <br /> B. Slump and Workability: <br /> 1. Slump: As determined by ASTM C143 as follows: <br /> Footing 311-411 <br /> Walls,columns Y-511 <br /> Slabs on grade 311-4" <br /> Structural slabs,beams 311-411 <br /> 2. Determine slump prior to addition of superplasticizer. <br /> 3. Workability: So that concrete will completely fill forms without voids and embed and bond to reinforcing <br /> without separation of materials. <br /> C. Water/cement ratio shall be as follows: <br /> Footings less than 0.6 <br /> Slabs on Grade less than 0.5 <br /> Exterior Concrete less than 0.45 <br /> D. Mixing: Mix and deliver concrete in accordance with ASTM C94. <br /> 1. Cooled or heated water shall be used in accordance with ACI 306 and 305. <br /> 033004 No.99132-CP2 <br />