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State of Haryana - Section
Section 38 in The Haryana New Mandi Townships Building Rules, 1967
38. Thickness of walls - Determination by stress calculation - [Section 4(2)(1) and (h)].
- Whenever walls of a building are constructed of bricks, stones, blocks laid in horizontal beds of courses; every wall or part thereof shall be so designed and constructed as to safely withstand and transmit self and superimposed loads, vertical, horizontal or inclined coming on to it without exceeding the intensity of pressure on the materials as given below :| *Description of wall | Allowable safe pressure in mertric ton per sq. metre (tonssq. ft.) (Slenderness ration not exceeding six) | ||
| 1. | Burnt bricks in cement mortar (1:3) to (1:4) | 87.50(8) M Tons | |
| 2. | Burnt bricks in lime mortar (1:2) or cement mortar (1:6) | 43.75(4) | |
| 3. | Burnt in mud mortar | 27.50(2½) | |
| 4. | Coursed Rubble masonry (other than Ashler) in cement mortar(1:4) | 98.50(9) | |
| 5. | Coursed Rubble masonry (other than Ashler) in lime mortar(1:2) or cement mortar (1:6) | 49.25(4½) | |
| 6. | Random Rubble masonry in cement mortar (1:4) | 87.50(8) | |
| 7. | Random rubble masonry in lime mortar (1:2) or cement mortar(1:6) | 43.75(4) | |
| 8. | Ashler masonry in cement mortar (1:3) with 1:3:6 massconcrete backing | 131.25(12) | |
| 9. | Ashler masonry in lime mortar 1:2 or cement mortar 1:6 with1:4:8 mass concrete backing | 65.65(6) | |
| 10. | Blocks in 1:3 cement mortar average crushing strength ofblock not less than : | ||
| (a) 34 Kg. Sq. cent. (500 Lb' Sq") | 21.90 metric tons/sq. metre (2) | ||
| (a) 70 Kg. Sq. cent. (1000 Lb' Sq") | 43.75 metric tons/sq. metre (4) | ||
| (a) 140 Kg. Sq. cent. (2000 Lb' Sq") | 31.30 metric tons/sq. metre (3½) |