ACI 211.1-91, Reapproved 2009, states: "The procedure for selection of mix proportions given below is applicable to normal weight concrete. Estimating the required batch weights for the concrete involves a sequence of logical straightforward steps. Some or all of the following specifications are required; maximum water-cement or water-cementitious material ratio, minimum cement content, air content, slump, maximum size of aggregate, strength, and admixtures."
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