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PGSF WMVD Storm and Combined Sewer - Construction Package 2 Cast-in-Place Concrete <br />Project No. 180162 03 30 00 - 5 <br /> <br />1.06 DELIVERY, STORAGE, AND HANDLING <br />A. Cement: <br />1. Store cement bags immediately upon receipt in a weatherproof structure as airtight <br />as practicable. Elevate floor above ground to prevent absorption of moisture. Stack <br />bags close together to reduce circulation of air but do not stack against outside walls. <br />Stack to permit easy access for inspection and identification of each shipment. <br />2. Transfer bulk cement to elevated airtight and weatherproof bins. At the time of use, <br />cement shall be free flowing and free of lumps. Do not use cement which has been in <br />storage longer than 6 months. <br />B. Aggregates: <br />1. Store aggregates on areas covered with tightly laid wood planks, sheet metal, or <br />other hard and clean surfaces in a manner that will preclude the inclusion of foreign <br />material. Store aggregates of different sizes in separate piles. Build stock piles of <br />coarse aggregate in horizontal layers exceeding 4 feet in depth to minimize <br />segregation. Remix segregated aggregates to conform to the grading requirements. <br />C. Admixtures: <br />1. Store admixtures to prevent damage. Do not use air-entraining admixture which has <br />been in storage for longer than 6 months or has been frozen. <br />D. Pozzolan: <br />1. Deliver and store pozzolan in the same manner as cement. <br />PART 2 PRODUCTS <br />2.01 MATERIALS <br />A. Cement: <br />1. Portland cement shall be ASTM C150, Type II, low alkali, containing less than 0.60 <br />percent alkalis. In addition to standard requirements, cement shall satisfy optional <br />chemical and physical requirements of ASTM C150, Tables 2 and 4, respectively. <br />2. If low alkali portland cement is not available, test results shall be submitted showing <br />aggregates meet the alkali-silica reactivity criteria in 2.01.D.1.b below. <br />3. Portland-pozzolan cement shall be ASTM C595, Type IP (MS), interground, low alkali. <br />4. Portland blast-furnace slag cement shall be ASTM C595, Type IS (<70) (MS), <br />interground, low alkali. <br />5. Portland-limestone cement shall be ASTM C595, Type IL (MS), interground, low alkali. <br />In addition to showing compliance with all testing requirements of ASTM C595 <br />(Tables 1-3), cement certification shall also include chemical testing results showing <br />C3A content less than 8% to match existing Type I/II characteristics. <br />6. Hydraulic cements meeting only the Physical Requirements of ASTM C1157 are not <br />permitted. <br />7. Use cementitious materials that are of the same brand and type and from the same <br />plant of manufacture as the cementitious materials used in the concrete represented <br />by the submitted field test records or used in the trial mixtures. See Change of <br />Materials paragraph below.