Design of Masonry Structures
Cement mortars richer than 1 : 3 are not used in masonry because(i) There is no gain in strength of masonry(ii) There is high shrinkage(iii) They are prone to segregation

Only (ii) is correct
(ii) and (iii) are correct
(i) and (ii) are correct
(i), (ii) and (iii) are correct

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Design of Masonry Structures
Assertion A : Lime based mortars give higher ratio of brickwork strength to mortar strength as compared to non-lime mortar.Reason R : Lime based mortars have lower bond strength as compared to non-lime mortars.Select your answer according to the codes given below:

A is true but R is false
Both A and R is true but R is not the correct explanation of A
A is false but R is true
Both A and R is true and R is the correct explanation of A

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