1.

Water-cement ratio varies normally from____to_____

A. 0.42 – 0.45
B. 0.45 – 0.48
C. 0.42 – 0.48
D. 0.45 – 0.5
Answer» D. 0.45 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 0.5


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