Standard conversion factor
- 1 Inch = 2 5.4 mm
- 1 Foot = 0.304 m
- 1 Yard = 0.914 m
- 1 Meter = 3.28 f t
- 1 mm = 0.394 inch
- 1 Mile = 1.609 km
- 1 Newton = 0.10 kg
Concrete clear cover for Reinforcement
- Raft Foundation Top should be = 50 mm
- Raft Foundation Bottom should be = 75 mm
- Raft Foundation Side should be = 75 mm
- Beam clear cover should be = 25 mm
- Strap Beam clear cover should be = 50 mm
- Column minimum clear cover should be = 40 mm
- Flat Slab should be = 20 mm
- Slab should be = 15 mm
Unite Weight Of Steel in Kg Per Meter For Different Diameter
- For 6 mm steel, the weight is 0.222 kg/m
- For 8 mm steel, the weight is 0.395 kg/m
- For 10 mm steel, the weight is 0.616 kg/m
- For 12 mm steel, the weight is 0.888 kg/m
- For 16 mm steel, the weight is 1.578 kg/m
- For 20 mm steel, the weight is 2.466 kg/m
- For 25 mm steel, the weight is 3.853 kg/m
- For 32 mm steel, the weight is 6.313 kg/m
- For 40 mm steel, the weight is 9.865 kg/m
Weight of engineering materials
- Bitumen = 1040kg/cu.m
- Cement = 1440kg/cu.m
- Brick = 1600kg/cu.m
- Sand:
l- Dry = 1600kg/cu.m 2- River = 1840kg/cu.m - Aggregate = 1750kg/cu.m
- Steel = 7850kg/cu.m
Concrete grade
- M 5 = 1 : 4 : 8
- M 10 = 1 : 3 : 6
- M 15 = 1 : 2 : 4
- M 20 = 1 : 1.5 : 3
- M 25 = 1 : 1 : 2
- M 30 = 1 : 0.75 : 1.5
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