American Concrete Institute Publishes Updated Guide to Selecting Proportions for Normal-Density and High-Density Concrete
The American Concrete Institute has released an updated version of ACI PRC-211.1-22: Selecting Proportions for Normal-Density and High-Density Concrete—Guide. This guide to concrete proportioning provides background information on, and a procedure for, selecting and adjusting concrete mixture proportions. The update is a significant and timely major revision of the guide.
ACI Committee 211–Proportioning Concrete Mixtures has revised the entire guide to include the latest information on supplementary cementitious materials, chemical admixtures, particle packing and more. Various examples incorporating binary and ternary mixes are provided as well as key mixture proportioning parameters, such as paste-to-void volume factor and cement efficiency factors. ACI PRC-211.1-22 is a convenient one-stop reference that provides novice users with the information needed to perform the outlined procedures.