Tensile Strength of Concrete

Tensile strength of concrete, abbreviated as \(f_t\), is valid for normal weight, normal density concrete.

 

Tensile Strencth of concrete formula

\(\large{ f_t =  7.5 \; \sqrt{ f_{c}{'}  }   }\)	(Emglish units)
\(\large{ f_t =  0.7 \; \sqrt{ f_{c}{'}  }   }\)	(Metric units)

Where:

Units	English	Metric
\(\large{ f_t }\) = tensile strength of concrete	\(\large{\frac{lbf}{in^2}}\)	\(\large{MPa}\)
\(\large{ f_{c}{'} }\)  = concrete specified cylinder 28-day compression strength	\(\large{\frac{lbf}{in^2}}\)	\(\large{MPa}\)