The state of two dimensional stress acting on a concrete lamina consists of a direct tensile stress, x = 1.5 N/mm2, and shear stress = 1.20 N/mm2, which cause cracking of concrete. Then the tensile strength of the concrete in N/ mm2 is

The state of two dimensional stress acting on a concrete lamina consis

1.	The state of two dimensional stress acting on a concrete lamina consists of a direct tensile stress, x = 1.5 N/mm2, and shear stress = 1.20 N/mm2, which cause cracking of concrete. Then the tensile strength of the concrete in N/ mm2 is
A.	1.5
B.	2.08
C.	2.17
D.	2.29
Answer» D. 2.29

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The state of two dimensional stress acting on a concrete lamina consists of a direct tensile stress, x = 1.5 N/mm2, and shear stress = 1.20 N/mm2, which cause cracking of concrete. Then the tensile strength of the concrete in N/ mm2 is

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