Composition/proportions of cement mortar for various uses

October 2, 2020

S.No.	Nature of Work	Mortar Type and Composition
1.	Pointing work	1:1 to 1:2 cement sand mortar
2.	Reinforced brickwork	1:3 cement sand mortar
3.	Damp proof courses and cement concrete roads.	1:2 cement sand mortar
4.	Thick joints in stone masonry.	Hydraulic lime sand mortar (1:2 to 1:3)
5.	Brick in arches, plastering inside of walls.	1:5 to 1:6 cement and mortar or lime surkhi mortar (1:2) or lime, surkhi and sand (1:1:1) mortar.
6.	Massive work below ground level especially in water logged areas.	1:3 cement sand mortar or 1:3 lime sand mortar.
7.	RCC tanks and other retaining.	1: 1.5 cement sand mortar.
8.	Stone masonry in foundations and superstructure of ordinary buildings.	1:2 fat lime surkhi mortar or 1 part lime, 1 part surki and 1 part sand.
9.	Laying fire bricks.	Fire resisting, mortar consisting of 1 part of aluminous cement to 2 parts of finely crushed powder of fire bricks.
10.	Mass concrete in foundations, paving tiles, cavity walls, plastering of ceiling and external plastering work etc., where good finish is required.	1:4 cement sand mortar or 1:2 to 1:3 hydraulic lime mortar.
11.	Massive works, dams, retaining walls, damp proofing, flooring, etc. where very high finish is required.	1:3 cement sand mortar.
12.	Highly stressed members of structure.	1:1 cement sand mortar.
13.	General RCC works such as slabs, beams and columns.	1:2 cement sand mortar.

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