Some Very Important terms in Civil Engineering.
- Height of Parapet wall should be = 1m
- Thickness of DPC = 2.5cm OR 1 inch
- Height of Building = 3.15m
- Height of Window = 2.1m
- One bag of cement = 1.25cubic feet and 0.0347 m3
- Weight of one cement bag = 50kg
- Minimum thickness of slab = 125mm
- No.of cement bags in 1m3 = 28.8bags
- Lintel thickness = 15cm (min)
- Lintel is provided at = 2.4 m in case of brick wall
- Minimum diameter of bars used in slab = 8mm
- Minimum diameter of bars used in column = 12mm
- Minimum diameter of bars in Dowel bars = 12mm
- Maximum diameter of bars in slab = 1/8 x thickness of slab
- Maximum chair spacing = 1m
- Dimensional tolerance of cube = +2mm -2mm
- Maximum water absorption should not be more than 20%
- Initial setting time of cement = 30 minutes
- Final setting time of cement = 10 hrs 600 minutes
- DPR = Detailed project report
:white_small_square:Unit Weight
- RCC = 25 kN/m3 = 25000N/m3
- PCC = 24 kN/m3= 24000 N/m3
- Steel = 7850 kg/m3
- 1 Gallon = 3.78 liters
:white_small_square:Minimum no of bars
- For square column or rectangular = 4 bars
- For circular column = 6 bars
1 Yard = 3 feet
- Weight of steel = D2/162.2 kg/m
- Weight of steel = D2/533 kg / ft
- Slope of staircase = 25degree to 40 degree
- Size of concrete testing cube = 150x150x150 mm
- Concrete cube is filled in =3 layers
- Slump cone is filled in = 4 layers
- Cement should be used within three months of manufacturing.
- Minimum thickness of shear wall = 150mm
- Maximum thickness of shear wall = 400mm
- Universal testing machine is used for compression test of concrete tensile test of steel reinforcement.
- Minimum curing period
7 Days Normal weather condition.
10 Days not weather condition.
- Minimum percentage of steel column = 0.8 % of cross area
- Max % of steel in column = 6% of gross area
:white_small_square:Nominal Cover
Footing = 50mm
Column = 40mm
Slab = 20mm
Beam = 25mm
- Lapping is not allowed in bars of diameter 36mm or more welding is preffesed.{Old}
- Lapping of bar is not allowed for dia> 32mm as per new amendment
:white_small_square:No.of stirrups in beam = clear span/c/c/ spacing + 1
- R.C.C is affected by water because of corrossion of reinforcement bars.
- P.C.C is not affected by the water.
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