Proportioning and Evaulation of Concrete Mixtures*

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Title: Proportioning and Evaulation of Concrete Mixtures*

Author(s): William A. Cordon and J. Derle Thorpe

Publication: Journal Proceedings

Volume: 72

Issue: 2

Appears on pages(s): 46-49

Keywords: admixtures; aggregates;economics; evaluation; mixed proportioning; quality control;water-cement ratio; workablity.

Date: 2/1/1975

Abstract:
Commom practice in concrete mix proportioning and control relates the consistancy of concrete, as measured by slump, with water requirement. A more realistic approach ids to relate slump with aggregate content, keeping the water and cement fixed constants in trial mixes. The amount of aggregate that can be used with a given quantatity of paste provides a realistic evaluation of the value of compariative proportions of materials used.