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Concrete class c20 compressive strength in psi

shall not exceed those listed in Table 1A. The maximum water/cement ratios listed for Concrete Class B and T are for design purposes only. 3 Deck Overlays. 4 Maximum 84 day Compressive Strength for Flowable Fill, Excavatable shall not exceed 200 psi (1.4 Mpa). 5 These are recommended values that may be used as a starting point for a mix design that

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