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Valley R Plaza 2-LR 961226 REDIMIX CONCRETE CONCRETE MIX DESIGN #721 CLIENT : N. C. Incorporated DATE: 12/26/96 PROJECT : MacArthur Shopping Center LOCATION : Coppell, Texas MIX # 721 DESIGN SPECIFICATIONS: 5.0 sack Cement Content : 5.00 sack Fly Ash Content : 00.0 Maximum Placement Slump : 5 inch Aggregate Size : ASTM C33 Size No. 57 Water Reducing Admixture: NONE Air Entraining Admixture: NONE W/C Ratio: 0.50 lb/lb MATERIALS: One Cubic Yard Weights (SSD) ABS.VOLUME Cement ASTM C150 470 lbs. 2.391 Fly Ash ASTM C618 00 lbs. Coarse Aggregate 1840 lbs. 11.002 Fine Aggregate 1601 lbs. 9.760 Water 29.0 gals 3.846 Admixture ASTM C494 00.0 oz/yd Admixture ASTM C260 0.00 oz/yd 27.000 cf PLEASE NOTE ASTM C94 Standard Specifications for Ready Mix Concrete states as follows; "When 1 - of . . - 1 .t 1 - s I . • 1 1 - 1 - IL. . 1 •. be entitled to copies of test reports. . The individual who samples and tests concrete must be certified ACI Level I." Additional water added in excess of specified slump is at customers risk. TO EN,,• 'E PROPER. IESIGN ORDER BY MIX #721 .ary 1.4 er on, CSI Date Techni • 1 Services Manager LD L fl ass speci:icalry noted, a?proval does not re iieve supplier from contract specifications and drawing. REDI-MIX, Inc. GENERAL OFFICE/1445 MacArthur Drive, Suite 136, Carrollton, Tet0O7 By : PHONE: (214) 242-4550 FAX: (214)323-0759 REDI-MIX, INC. 1445 MacARTHUR DR. SUITE 136 CARROLLTON, TX 75007 (972) 316-0273 Frequency Distribution Analysis 28 Day Compressive Strength Mix: 721 F'c: 3000 psi 12/26/96 ACI 214 SUMMARY Statistical Strength Summary Average strength based on 30 tests 3661 psi Overall Standard Deviation 298 psi Control is Excellent Overall coefficient of variation 8. 14 % Overall within-test coefficient of variation 2. 52 % Control is Excellent Chance of strength falling below 3000 psi 1.3 % Chance of strength falling below 2500 psi - % Chance of "Average of 3" below 3000 psi - ACI 214 Minimum Recommended Strength 3399 psi Chance of strength less than specified - 500 <= 1 in 100 Chance of "Average of 3" less than specified <= 1 in 100 Moving Within Moving Avg: 3 C of V StD:3 28 day 28 day 28 day 28 day Seq Sample Sample Comp Comp Comp Comp Num ID Date psi psi % psi 1 131164 6/28/96 3735 - - - 2 131175 6/28/96 3805 - - - 3 36948 7/ 2/96 3145 3562 - - 4 37226 7/10/96 3770 3573 - - 5 37236 7/10/96 3775 3563 - - 6 37274 7/11/96 3355 3633 - - 7 37407 7/16/96 3695 3608 - - 8 152973 7/19/96 3835 3628 - - 9 152983 7/19/96 3935 3822 - - 10 152994 7/19/96 3570 3780 2.5 - 11 " 153010 7/19/96 3780 3762 2.7 - 12 153023 7/19/96 3725 3692 2.6 - P. 1 Frequency Distribution: 28 Day Compressive Strength Moving Within Moving ■ Avg: 3 C of V StD: 3 28 day 28 day 28 day 28 day Seq Sample Sample Comp Comp Comp Comp Num ID Date psi psi % psi 13 153052 7/19/96 4570 4025 2.6 - 14 52583 8/30/96 4085 4127 2.3 - 15 52632 9/ 3/96 3690 4115 2.8 - 16 52691 9/ 4/96 3590 3788 2.9 - 17 52886 9/ 5/96 3405 3562 3 .3 - 18 52940 9/ 6/96 3795 3597 3.0 - 19 53111 9/ 9/96 3455 3552 2.7 - 20 52632 9/13/96 3690 3647 2.9 - 21 53700 9/13/96 3130 3425 2.9 - 22 50284 9/20/96 3760 3527 2.8 - 23 50968 10/ 1/96 3575 3488 2.7 - 24 50977 10/ 1/96 3735 3690 2.8 - 25 50994 10/ 1/96 3750 3687 2.3 - 26 51017 10/ 1/96 3765 3750 2.7 - 27 51460 10/ 8/96 3900 3805 2.1 - 28 51844 10/14/96 3405 3690 2.1 - 29 14334 10/15/96 3290 3532 - - 30 14343 10/15/96 3105 3267 2.5 298 P. 2