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For Concrete Mix 1, the typical mixture proportions for an average compressive strength to comply with f, of 3000 psi would have a w/cm of around 0.60. However, based on

applicable exposure classes, the minimum specified strength, f.and maximum w/cm of the concrete should be: a) 5500 esi. 0.52 b)4000 psi, 0.50 e) 4500 psi, 0.45 d) 5000 psi,0.40

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