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23/12/2020

27/07/2020

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25/07/2020

Follow this site for general section student to give mock test free

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25/07/2020

Slump test for civil engineering

22/07/2020

SOME IMPORTANT INFORMATION ::::
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 bass 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 of first class brick = 15% of dry wt
Initial setting time of cement = 30 minutes
Final setting time of cement = 10 hrs 600 minutes
DPR = Detailed project report

Unit Weight

RCC = 25 kn/m3 = 25000N/m3
PCC = 24 kn / m3 = 24000 N/m3
Steel = 7850 kg/m3
1 Gallon = 3.78 liters
Minimum no of bars

For square column or rectangular = 4 bars
For circular column = 6 bars
Standard sand in india is obtained from Ennore.Tamil Nau
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 = 0.08 % of cross area
Max % of steel in column = 6% of gross area
Nominal Cover
Footing = 50mm
Column = 40mm
Slab = 20mm
Beam = 25mm
Lapping is not allowed in bars of diameter 36mm or more welding is preffesed.
No.of stirrups in beam = clear span/c/c/ spacing + 1
R.C.C is affected by water because of corrosion of reinforcement bars.
P.C.C is not affected by the water.

19/07/2020

19/07/2020

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19/07/2020

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