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ACI 221R: Guide for Use of Normal Weight and Heavyweight Aggregates in Concrete
Abstract: This guide presents information on selection and use of normal weight and heavyweight aggregates in concrete. The selection and use of aggregates in concrete should be based on technical criteria as well as economic ...
ACI 309.1R: Report on Behavior of Fresh Concrete During Vibration
Abstract: At the turn of the twentieth century, concrete was generally placed as very dry mixtures, and was deposited in thin lifts and rammed into place by heavy tampers, which involved extensive manual labor. Typical structures, ...