For structures which are regularly wetting and drying, the water cement ratio by weight should be ______ and _________ for thin section respectively.(a) 0.55, 0.45(b) 0.45, 0.55(c) 0.55, 0.65(d) 0.65, 0.55This question was posed to me in quiz.This intriguing question comes from Cement Concrete Construction topic in section Cement Concrete Construction of Construction & Building Materials

For structures which are regularly wetting and drying, the water cemen

1.	For structures which are regularly wetting and drying, the water cement ratio by weight should be ______ and _________ for thin section respectively.(a) 0.55, 0.45(b) 0.45, 0.55(c) 0.55, 0.65(d) 0.65, 0.55This question was posed to me in quiz.This intriguing question comes from Cement Concrete Construction topic in section Cement Concrete Construction of Construction & Building Materials
Answer» Correct answer is (B) 0.45, 0.55 The best I can explain: The water CEMENT ratio for STRUCTURE which are EXPOSED to weather should be carefully decided. For structures that are CONTINUOUSLY underwater, the water cement ratio by which should be 0.55 and 0.65 for thin sections and mass concrete respectively.

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