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3 23315 Dike Road <br /> Anmgton.WA 98223 360.435.5791 <br /> L"i'I.I.fr7.{7.L <br /> /�. CPC Materials.Inc. <br /> Concrete Mix Evaluation Report <br /> ACI 318 Required Average Strength <br /> Mix ID 0345AP Number Of Tests 7 <br /> Mix Name 4500PSIAEAWRASLAG Average Strength 5511 psi <br /> Design Strength(f'c) 4500 psi @ 28 Days St Dev 355 psi <br /> Required Strength(f'cr) 5700 psi @ 28 Days St Dev(Modified) 355 psi <br /> Comp Acceptance <br /> Air Strength Strength <br /> Content (7-Day) (28-Day) <br /> Test Date Plant/Mix Lab Slump M (psi) (psi) <br /> 12/02/2022 603R/0345AP 4 4.2 4170 5620 <br /> 03/22/2023 603R/0345AP 4.25 5.3 4360 5190 <br /> 03/23/2023 603R/0345AP 5.5 6 3540 5210 <br /> 05/04/2023 603R/0345AP 5.5 5.3 3330 5180 <br /> 05/16/2023 603R/0345AP 4.75 5.5 4020 5630 <br /> 05/30/2023 603R/0345AP 5.5 5 5250 6160 <br /> 06/28/2023 603R/0345AP 6 5 4420 5590 <br /> Average 5.07 5.2 4156 5511 <br /> Minimum 4.00 4.2 3330 5180 <br /> Maximum 6.00 6.0 5250 6160 <br /> Standard Deviation 0.746 0.55 355 <br />