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What is RCC? Why TMT Bar is required in RCC?

RCC stands for Reinforced Cement Concrete.

Cement Concrete carries strong compressive strength but it has no tensile strength. Therefore TMT Bars are used in Cement Concrete to increase the tensile strength. Without using TMT Bars no structure can withstand during an earthquake. TMT Steel Bars/Reinforced Bars are highly ductile and for its tensile strength it can hold the building during an earthquake.

For different concrete grades different quantity of the materials are required.

Concrete Grade Proportion of Cement : Sand : Stone pieces Expected Compressive Strength at 28 days
M10 1 : 3 : 6 10 N/mm2 or 100 Kg/cm2
M15 1 : 2 : 4 15 N/mm2 or 150 Kg/cm2
M20 1 : 1.5 : 3 20 N/mm2 or 200 Kg/cm2
M25 1 : 1 : 2 25 N/mm2 or 250 Kg/cm2

 

TMT Bar adds strength to the RCC. Various elements of RCC constructions are slabs, beams, foundation etc.