Recommended Practice for Selecting Proportions for No-Slump Concrete.

This proposed standard is intended as a supplement to ACI Standard "Recommended Practice for Selecting Proportions for Concrete (ACI 613- 54)." The standard describes a procedure for proportioning concretes having slumps in the range of zero to I in. and consistencies below this range, for aggregates up to 11f2 in. maximum size. Suitable equipment for measuring such consistencies is described. Tables similar to those in ACI 613-54 are provided which, along with laboratory tests on physical properties of fine and coarse aggregate, yield information for obtaining concrete proportions for a trial mixture. Examples of the use of these tables, in conjunction with tables in ACI 613-54, are given. [ABSTRACT FROM AUTHOR]