The Structural Engineer > Archive > Volume 15 (1937) > Issues > Issue 11 > Correspondence. Strength Tests for Cement and Water-Cement Ratio
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Correspondence. Strength Tests for Cement and Water-Cement Ratio

DEAR SIR,-In the issue of The Structural Engineer last month Mr. Williams asks for an explanation of the apparent inconsistency between:- (a) Statements attributing an absolute relationship between water-cement ratio and compressive strength of concrete; and on the other hand- (b) A statement by Dr. Glanville confirming this but at the same time comparing a 3:1 sand-cement and 4:2:1 concrete as having the same approximate strength if the water-cement ratio is 0.5 in the former case and 0.6 in the latter.