How much steel is RCC slab?

Asked By: Gligor Aengeneyndt | Last Updated: 24th April, 2020
Category: business and finance construction industry
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Ratio of Steel required to Cement Concrete
Different Parts of the Building Requirement of Steel TMT Bars in Kg
Plate Slabs 95-135
Bases 90-130
Floor Slabs 80-120
One way Slabs 75-125

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Similarly, you may ask, how much steel is required for slab?

Assuming it a normal residential building with light loading conditions, thickness of slab will be 120 mm. Area of slab is 1000 sft means 93 Sqm. 120mm thickness means volume is approx 11.20 cum. So, for normal conditions, steel required is approx 900 kg plus 5%=950 kg.

Secondly, what is the percentage of steel in RCC? For RCC Beam & Column need 2-3% steel, say 2.5% steel.

Similarly, it is asked, how is RCC calculated in slab?

RCC slab volume can be found by multiplying the thickness with the area of the slab. Now generally we consider the amount of steel in any concrete member is 2% of the concrete volume. So subtracting the steel amount one can easily find the concrete volume.

How many kg of steel is required in 1m3 of concrete?

One cubic metre of concrete weighs 2.5 Tonnes. Typically, 1m3 of concrete is made up of 350Kg of cement, 700Kg of sand, 1,200Kg of chippings and 150 Litres of water.

37 Related Question Answers Found

How much is concrete per sqft?

A typical concrete slab costs $4 to $8 per square foot with most homeowners spending between $5.35 to $6.17 per square foot, or $113 to $126 per cubic yard for both materials and installation. Your final cost will depend on the slabs size, thickness, and if you any special reinforcement such as wire mesh or rebar.

How is BBS slab calculated?

The quantity is done in two steps.
  1. (Calculation of Bars No's) First, calculate the number of bars required (main and distribution both). FORMULA = (Total length – Clear cover)/center to center spacing + 1. Main bar = (5000 – (25+25))/100 + 1. = 4950 Divided by 100 + 1. = 51 Bars.
  2. (Cutting length)

How many bags of cement do I need for 1000 square feet?

SUMMARY: Cement = 112 bags. You can use the same formula for different mix proportions such as 1:2:4 etc.

How do you calculate steel?

The Basic Formula For Calculating Steel Quantity
  1. Get The Length Of Bars. Get the length of a bar from the drawing and multiply the length with the number of bars you counted in step #1.
  2. Get The Weight Of Bars. Steel bars are available in the market as weight like kilogram or Ton.

How many bags of cement do I need for 100 square feet?


Volume of slab = Area x Thickness = 9.29 x 0.2 = 1.86 cum. Assuming Coefficient = 8 bags/cum. roof slab (RCC M25 100 mm thk.)

How do you calculate kg of steel?

  1. Weight of STEEL BAR.
  2. Weight = Density x Volume {Volume = Area x Length }
  3. Density of Steel = 7850 Kg/m3.
  4. Area of Steel = pi x d^2 / 4.
  5. = 0.785 d^2.
  6. Taking, Bar Length =1000 mm = 1 m.
  7. Therefore, we can calculate.
  8. Weight of Steel Bar = {7850/(1000x1000x1000)} x (3.14 x d^2 /4)x1000.

How do you calculate RCC?

You need to calculate how much concrete is required to cast the member first. Example: Consider slab area is 400 square meter, thickness of the slab is 150 mm. Concrete quantity required to cast this slab is 400*0.15 = 60 Cubic meter.

  1. foundation 80.
  2. column. 180.
  3. slab. 150.
  4. beams 180.

How much weight can a RCC slab take?

Imposed loads varies from approximately 1.5 kN/m2 (153 kg/m2) in domestic buildings to approximately 10 kN/m2 (1053 kg/m2) in heavy industrial areas. 500 kg/m2 is typical for office, storage space and similar.

What is the cost of RCC construction?

To get a rough idea for the construction cost you can get a hint from this formula, however, in general, it is assumed that to construct an RCC roof slab the approx cost would be Rs 180 to 200-00 per Sq Ft, where the cost for steel, labor, shuttering and material is included.

How do you calculate steel in RCC?


UNIT WEIGHT X TOTAL LENGTH gives you the WEIGHT OF STEEL.
You need to calculate how much concrete is required to cast the member first. Example: Consider slab area is 400 square meter, thickness of the slab is 150 mm. Concrete quantity required to cast this slab is 400*0.15 = 60 Cubic meter.

What is RCC slab?

RCC slab: reinforced cement concrete slab. It has a combination of steel bars and concrete. Steel bars are placed in concrete with calculated spacing. Cover thickness if concrete is provided around the bars. Bars are tied properly to avoid displacement during pouring of concrete.

What is unit of steel?

Actually the unit weight of steel is 7850 kg/m^3
Unit Weight = (Weight of substance)/(volume of substance) There is a thumb rule to calculate weight of reinforcement per unit length as D^2/162 in kg/m. Standard length of reinforcement bar in market is 12 meter.

How many steel are in a column?

How much steel is required for a column? - Quora. Minimum area of cross-section of longitudinal bars must be atleast 0.8% of gross section area of the column. Maximum area of cross-section of longitudinal bars must not exceed 6% of the gross cross-section area of the column.

How do you calculate volume of steel in concrete?

It is easy once you know how. First of all you estimate the volume of the concrete in Cubic Yards then you multiply that figure by 125 Pounds. So to give you an example if you have 20 Cubic Yards of concrete; 20X125=2500 pounds of steel.

What is minimum reinforcement?


The minimum amount of steel reinforcement is defined as that for which "peak load at first concrete cracking" and "ultimate load after steel yielding" are equal. A minimum area of reinforcement is required to control the cracking, which occurs in the concrete due to temperature, shrinkage and creep.

What is the area of steel in 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.

Is 800 a PDF?

[PDF] IS 800 ( 2007 ) Civil Engineering. IS 800 is the basic Code for general construction in steel structures and is the prime document for any structural design and has influence on many other codes governing the design of other special steel structures, such as towers, bridges, silos, chimneys, etc.