Laserfiche WebLink
Newmont Goldcorp-Cripple Creek&Victor Gold Mine <br /> Technical Specification No.03300 CAST IN PLACE CONCRETE ■ <br /> VLF2 Phase 3 <br /> Project No.475.0106.033 <br /> December 5,2019 <br /> 2. PART 2: PRODUCTS <br /> 2.1. Materials <br /> A. Portland Cement, ASTM C 150,Type II. <br /> B. Coarse Aggregate, ASTM C 33, except that clay and shale particles shall not exceed 1 <br /> percent of total aggregate. <br /> C. Fine Aggregate,ASTM C 33, washed natural sand. <br /> D. Flowable Fill containing, at a minimum, cementitious materials and water. The mixture <br /> may also contain fine aggregate or filler, and/or chemical admixtures in any <br /> proportions such that the final product meets the strength, flow consistency and <br /> shrinkage requirements included in this specification, as approved by the CERTIFYING <br /> ENGINEER. <br /> 1. Portland Cement: ASTM C150,Type II. <br /> 2. Mixing Water <br /> 3. Air-Entraining Admixture: ASTM C260. <br /> 4. Chemical Admixtures: ASTM C494. <br /> 5. Aggregate: ASTM C33. <br /> 2.2. Mixes <br /> A. Mix Designs: <br /> Concrete mix design shall be designed by an independent testing laboratory. <br /> B. Cast-In-Place Concrete: <br /> 1. Cast-in-place concrete with reinforcing steel shall have a minimum 28-day <br /> compressivestrength of 4,000 psi. <br /> 2. Maximum Aggregate size of 1-inch. <br /> 3. Placement slump between 2-inches and 5-inches. <br /> 4. Air entrainment of 5%to 8%. <br /> C. Flowable Fill: <br /> 1. Minimum compressive strength of 300 psi, ASTM C 39, at 28 days after placement. <br /> 2. Minimal subsidence and bleed water shrinkage. Evaporation of bleed water <br /> shall not result in shrinkage of more than 1/8 inch per ft. of flowable fill depth (for <br /> mixes containing high fly ash content). <br /> 3. Unit weight of (115 — 145 Ib/feet3) measured at the point of placement. In the <br /> absence of strength data the cementitious content shall be a maximum 150 lbs/cy. <br /> Page 2 <br />