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TRANSIT MIX CONCRETE CO. <br /> Colorado Springs Pueblo <br /> P O Box-1030.CO 80901 P.O Box-857,CO 81002 <br /> ( 19)475-0700(Fax)475-0226 (719)561-8350(Fax)566-0231 <br /> CONCRETE MIX DESIGN <br /> September 22,2017 <br /> Cripple Creek Gold Mine <br /> Victor,Colorado <br /> "Class B Grout for Rip Rap" <br /> 4000 PSI @ 28 Days(Specification)-7.5 Sacks Cement-0.45 Maximum W C-4500 PSI @ 28 Days(Design) <br /> LANGSTON CONCRETE <br /> P.O. Box 279 <br /> Florence, Co 81226 <br /> ONE CUBIC YARD <br /> Cement ( GCC Type 1/11-Pueblo,CO ) 529 lbs <br /> Fly Ash ( Boral Class F Craig,CO ) 176 lbs <br /> * Fiber Mesh ( Master Fiber F100 ) 1.5 lbs <br /> WRA ( BASF 322N ) 21.1 ozs <br /> HRWRA ( BASF Glenium 7500 ) 21.1 ozs <br /> AEA ( BASF AE 90 ) "As Needed" 3.5 ozs <br /> Rock ( ASTM C-33 No. 8 ) 836 lbs <br /> Sand ( Daniels Sand Co. ) 1955 lbs <br /> Water ( Colorado Springs,CO ) 297 lbs <br /> * Fibers must be requested with each order as required,if required. <br /> Transit Mix Concrete CO Mix Identification Number: 87092110 <br /> Approximate Design Physical Properties: <br /> Unit Weight-pcf :: 139.1 <br /> Slump -Inches 5„ _9$1 <br /> Air Content-% 6%-9% <br /> Water I Cement Ratio 0.42 <br /> This mix is derived from the enclosed single point mix design(870221 10).Compliance information on the materials is also enclosed. <br /> Production and delivery is in accordance with ASTM C 94 Standard Specification for heady-Mixed Concrete.Compressive strength <br /> performance is conditional with strict adherence to the current ASTM Standards relating to concrete,and the latest revisions of ACI 301 <br /> and 318. With approval from the specifying authority,the 90 minute time limit for mixer trucks may be extended to 180 minutes with the <br /> use of water reducing and retarding admixture which conforms to ASTM C 494,Type D. <br /> Additional cementitious,admixtures,colors,accelerators,stabilizers,fibers,Ice and retarders nmist be approved by the specifying authority <br /> and must be requested Ns ith each order as required This mix is batched with city water and meets ASTM C 1602 criteria:4.2"Potable <br /> Water'is permitted to be used as mixing«ater in Loncrete without testing for conformance with the requirements of ASTM C 1602 <br /> specification. <br /> TRANSIT MIX CONCRETE CO. <br /> Robert L. Montoya SC., <br /> NRMCA Certified Concrete Technologist Level 4 <br />