Q. The compressive strength of an ordinary Portland cement (1 : 3 cement mortar cube) after 7 days test should not be less than

(A) 11 N/mm2
(B) 17.5 N/mm2
(C) 22 N/mm2
(D) 27.5 N/mm2

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✅ Correct Answer: (B) 17.5 N/mm2

Published by Mr. Dubey ⭐ 109.99K Points at 13-Sep-2023 05:47 pm in Concrete Technology

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