đź•‘ Reading time: 1 minute
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.
| 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. |
| 12. | Thin joints in brickwork | Lime mortar of 1:3, lime being fat lime. |
