The Structural Engineer > Archive > Volume 8 (1918) > Issues > Issue 1 > A method of proportioning materials for concrete
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A method of proportioning materials for concrete

OUTLINE OF METHODS AND TESTS RESULTS. A comparison is here made of the usual 1: 2: 4 method of proportioning concrete with one in which, no matter what the aggregates may be, the quantity of cement in the finished material remains the same for any given volume. H. C. Johnson