Selection of Mortar Mix Proportion for Various Masonry Works
Gopal Mishra
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Selection of Mortar Mix Proportion for Various Masonry Works
Different grade of mortar is required for different nature of masonry works. Special types of mortars are required under special conditions.
Mix proportions of cement mortar and lime mortar for different types of construction is presented in table.
Following table shows the types of mortars required for various works:
Sl. No.
Nature of work
Type of mortar
1.
Construction work in waterlogged areas and exposed positions
Cement or lime mortar of proportions 1:3, lime being eminently hydraulic lime.
2.
Damp proof courses and cement concrete roads
Cement mortar proportions 1:2
3.
General RCC work such as lintels, pillars, slabs, stairs etc.
Cement mortar of proportions 1:3, the concrete mix being 1:2:4
4.
Internal walls and surfaces of less importance
Lime cinder mortar in proportion 1:3, sand is replaced by ashes or cinder.
5.
Mortar for laying fire-bricks
Fire-resistant mortar consisting of 1 part of aluminous cement to 2 parts of finely crushed powder of fire-bricks.
6.
Partition walls and parapet walls
Cement mortar of proportions 1:3 or lime mortar of 1:1. Lime should be moderately hydraulic lime.
7.
Plaster work
Cement mortar of proportion 1:3 to 1:4 or lime mortar proportion 1:2
8.
Pointing work
Cement mortar of proportion 1:1 to 1:2
9.
Reinforced brickwork
Cement mortar proportion 1:3
10.
Stone masonry with best varieties of stones
Lime mortar proportions 1:2, lime being eminently hydraulic lime.
11.
Stone masonry with ordinary stones, brickwork, foundations, etc.
Lime mortar of 1:2 or cement mortar of 1:6, lime should be eminently hydraulic lime or moderately hydraulic lime.
