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The concrete used in coastal areas during the construction of earthquake-resistant buildings should be of grade __________(a) M 10(b) M 15(c) M 20(d) M 35The question was posed to me during an internship interview.This interesting question is from Earthquake Resistant in portion Earthquake Resistant Buildings of Construction & Building Materials

Answer» CORRECT ANSWER is (c) M 20

Best explanation: The CONCRETE used in coastal areas during the CONSTRUCTION of earthquake-resistant buildings should be of GRADE M 20. Also, the filling mortar should be of the ratio 1:3.


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