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MM 1.5 means:(a) Masonry Mortar of cement content 1.5 bags(b) Mild Mortar of cement content 1.5 bags(c) Masonry Mortar of compressive strength 1.5N/mm^2.(d) Mild Mortar of compressive strength 1.5N/mm^2.I have been asked this question in an international level competition.Question is from Mortar topic in division Building Construction of Basic Civil Engineering

Answer» CORRECT choice is (c) Masonry MORTAR of COMPRESSIVE strength 1.5N/mm^2.

For explanation I would say: MM stands for Masonry Mortar.The number after that REPRESENTS the compressive strength of that mortar mix.


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