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 segregationOf these statements

Masonry is the craft of building a structure with brick, stone, or similar material, which are often laid in and bound together by mortar; the term masonry can also refer to the building units (stone, brick, etc.) themselves.