Sunday, August 23, 2020

How Much Steel is Required for 1m3 Concrete

Quantity of steel in concrete depending on the type of structure and load of the structure.

 

Foundation

0.5 to 0.8 % of steel are required 
Let's take at least 0.5% steel that is required in 1 m3 concrete


Then the Qty of steel  = (0.5/100)×1× 7850  [ Density of Steel -7850 ]

                                   = 39.25 kg  If we take Maximum 0.8% steel is required  

Qty of steel                = (0.8/100)× 7850 
                                   = 62.8 kg

 Column 

0.8 – 6 % of steel required 

 Minimum  0.8 %.

                                 = (0.8/100)×7850 

                                 = 62.8 kg

Maximum 6% 
                                 = (6/100)× 7850
                                 = 471 kg 3.

Beam 

1- 2 % 
Minimum 1% 
                                 = (1/100) ×7850
                                 = 78.5 kg  
Maximum 2 % 
                                 = (2/100) × 7850 
                                 = 157 kg 

Slab and lintel

 0.7 – 1.0 % 
Minimum0.7 %
                                = (0.7/100)× 7850 
                                = 54.95 kg 
Maximum 1% 
                                 =(1/100)× 7850 
                                 = 78.5 kg 
 Overall we assume Average 2.5 % of steel required in 1 m3 concrete work  

                                 = (2.5/100) × 1 ×7850 
                                 = 196.25 kg ~ 200 kg steel 1m3 
                                 = 200 kg steel 1m3 
                                 = 2 Quintal steel required

FAQ

why steel is used in RCC?

TIt is because the two materials bond together very well with no slippage and thus act together as one unit in resisting the applied loads, apart from a few other important properties of steel. The tensile strength of steel is approximately equal to 100 – 140 times the tensile strength of the plain concrete mix.

What is the density of steel in kg m3

But high-density alloys produce higher-density steel. That is why the density of steel ranges from 7750 kg / m3to 8050 kg / m3.

What is the ratio of steel in concrete?

Concrete
Grade
The proportion of Cement :
Sand:
 Stone pieces
 Compressive Strength
at 28 days
(
expected)[N/mm2]
M10
1:3:6 10
M15 1:2:4 15
M20
M25
1:1.5:3
1:1:2
20
25

How much-reinforced steel do I need for concrete?

The relative cross-sectional area of steel required for typical reinforced concrete is usually quite small and varies from 1% for most beams and slabs to 6% for some columns.



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