Civil engineer must know +18 Civil engineer tips and tricks
1- Break-in is not allowed for bars with a diameter greater than 36mm.
2- Maximum distance between seats is 1.00 m (or) 1 No per 1m2.
3- For rivets, a minimum diameter of 12 mm must be used.
4- Seats with bars with a minimum diameter of 12 mm are used.
5- Longitudinal reinforcement not less than 0.8% and over 6% of total C/S.
6- The minimum bar for square columns is 4 zeros and 6 for round columns.
7- The main bars in the plate shall not be less than 8 mm (HYSD) or 10 mm (Single bar) and the dividers not be less than 8 mm and not more than 1/8 of the thickness of the plate.
8- The minimum thickness of the slab is 125 mm.
9- Dimensional tolerance of cube + 2 mm.
10- The maximum free fall of concrete is 1.50 m.
11- Masking tape should not be used for bars longer than 36 mm.
12- The water absorption of bricks should not exceed 15%.
13- The pH of the water should not be less than 6.
14- The compressive strength of bricks is 3.5 N/mm2.
15- Reinforcing steel wire required is 8 kg/ton.
16- In the case of soil embankment according to IS code, 3 samples must be taken for every 100 m2 for the core extraction test.
17- The pH of the water should not be less than 6.18- Electrical conductors must not pass through the pole.
Civil engineering engineers should know
Cement to be tested for setness
Cement to be tested for setness
- The initial setting time should not be less than 30 minutes.
2 . The final setting time should not exceed 10 hours.
Subsidence IS 456
Light reinforcement 25 – 75 mm
Heavy reinforcement 75 – 100 mm
Grooving (in-place and Tremie) 100 – 150 mm (For Tremie without vibrator)
Site engineer Right know
Curing Days Required
Super Sulfate Cement: 7 days
Regular Portland OPC Cement: 10 days
Cement with added minerals and additives: 14 days 1440 kg/cum
The density of construction materials
Steel = 7850 kg/cum
Cement = 1440 kg/cum
Bricks = 1682 kg/ cum or 1920 kg/cum
Sand = 1100 to 1600 kg/cum
Water = 1000 kg/cum
R.C.C = 2500 kg/cum (5% steel)
PCC = 2400 kg/cum
Wood = 1100 kg/cum
Bricks = 950-1250 kg/cum
