RCC Slabs : Design, types, Thickness and calculation
RCC stands for reinforced cement concrete slabs. It is the most important element in the?construction?industry to make a building. RCC slab is a structural component. The RCC slabs are supported on the columns and beams. RCC Slabs whose thickness ranges from 10 to 50 centimeters are most often used for the construction of floors and ceilings.
Thickness of RCC
The minimum thickness of?RCC slabs?is 5 inches. According to the AMERICAN CONCRETE INSTITUTE, the minimum thickness of the RCC slab should be 5 inches. According to Indian Standard, the minimum thickness of the RCC slab is restricted to 4 times the nominal size of aggregate. The minimum thickness should not be less than 4.75 inches.
Types of Slabs
Corrugated Slab?- this is the type of slab where the concrete is poured into a corrugated steel tray. This type of RCC slab increases the strength and prevents the slabs from bending under their own weight. It runs across from side to side.
A Ribbed Slab?- this type of slab provides extra strength in one direction.
A Waffle Slab?- this type of slab gives added strength in both directions.
One-way Slab?- this type of slab has structural strength in the shortest direction.
领英推荐
Two-way Slab?- it has structural strength in two directions.
Cost of RCC Slab
Cost of RCC Slab for 2000 sq ft, 5" thick and cement concrete 1;2;4. The approximate cost is Rs 3 lac including the material, labor, and MS steel bars.
Requirement of Steel
The required Steel for the RCC slab is 80 kgs/m3, then the quantity of steel required for 100 sq ft ( 1.18 m3)?RCC slab?is equal to = 80 ? 1.18 = 94.5 Kgs. 94.5 Kgs steel quantities are required for 100 sq ft 5-inch thick RCC roof slab.
Calculation of RCC Slab
Type of Steel is used in RCC Slab
Mild steel bars are used in RCC slabs for their tensile strength. These types of steel bars are plain in shape on the surface and are round sections of diameter from 6 to 50 mm.