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DR8601-CS 861203G. D. JACKSON PRESIDENT J-N CONSTRUCTION COMPANY, INC. P.O. BOX 830530 RICHARDSON, TEXAS 75083-0530 TELEPHONE 2 ! 4/23 ! -0452 3 December 1986 City of Coppell Attn: Mr. Steve Morton 616 Coppell Road Coppell, TX 75019 Dear Steve: Please find enclose the concrete mix designs for the Parkwood Drainage Channel. Upon approval please notify me verbally over the phone followed by written approval for our records. If I can be of any further assistance, please do not hesitate to call. Vice President JLJ:cd encl. 13250 BRANCH VIEW LANE · P.O. BOX 344386 ,, FARMERS BRANCH, TEXAS 75234 PROPOSED CONCRETE MIX DESIGN FOR J. N. Construction Mix Design No. 1 DATE December 3, 1986 Project Parkwood Drainage Channel Location of Placement MIX SPECIFICATIONS Min. Sack Content Strength 3000 Slump Range 4 Air Entrainment Water/Cement Ratio 7.2 MATERIALS Cement Fly Ash Coarse Aggregate Coarse Aggregate Coarse Aggregate Fine Aggregate Fine Aggregate Admixture Admixture A. E. A. Water PSI at 28 days Inches ±1 Per Cent Gallons/Sack TYPE ASTM C-150 Type I ASTM C-618 Type C ASTM C-33 # 57 ASTM C-33 # ASTM C-330 # ASTM C-33 # ASTM C-33 # ASTM C-494 Type ASTM C-494 Type ASTM C-260 Type A or D 31.5 gal BY: TOTAL QU~L~ TY~ S.S.D. WEIGHTS 326 82 1800 1582 12 ozs 262 4052 REEWAY TELEPHONES Dispatch 241-3461 Administrative 241-7671 13250 BRANCH VIEW LANE · P.O. BOX 344386 · FARMERS BRANCH, TEXAS 75234 PROPOSED CONCRETE MIX DESIGN FOR Mix Design No. 2 Project parkwood Drainaqe Channel Location of Placement MIX SPECIFICATIONS Min. Sack Content 5.0 Strength 3000 Slump Range 4 Air Entrainment Water/Cement Ratio J. N. Construction MATERIALS Cement Fly Ash Coarse Aggregate Coarse Aggregate Coarse Aggregate Fine Aggregate Fine Aggregate Admixture Admixture A. E. A. Water DATE PSI at 28 days Inches ±1 Per Cent 7.0 Gallons/Sack TYPE ASTM C-150 Type ASTM C-618 Type ASTM C-33 # ASTM C-33 # ASTM C-330 # ASTM C-33 # ASTM C-33 # ASTM C-494 Type ASTM C-494 Type ASTM C-260 Type 57 TOTAL BY: December 3, 1986 S.S.D. WEIGHTS 470 1800 1467 35 gal 292 4029 QUALI'T~' CONTR6~