Q. For an ordinary Portland cement

(A) residual does not exceed 10% when sieved through is sieve no. 9
(B) soundness varies from 5 to 10 mm
(C) initial setting time is not less than 30 minutes
(D) compressive stress after 7 days, is not less than 175 kg/cm2

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✅ Correct Answer: (C) initial setting time is not less than 30 minutes

Published by Mr. Dubey ⭐ 111.54K Points at 13-Sep-2023 06:02 pm in Concrete Technology and Design

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