Estimate the tensile strength required to prevent cracking in a concrete-like materialthat is cast into a bar, 500 mm long, and is fully restrained at each end against axialmovement. The concrete is initially cast and cured at a temperature of 23°C andsubsequently cools to a temperature of 10° C. Assume the modulus of elasticity is 32GPa and the linear coefficient of thermal expansion is 0.00001 m/m/° C.

Given data Length of bar( L)= 500 mm Initial cured temperature (To) = 23°C Final temperature (Tf)…

Answered: Estimate the tensile strength required…

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter12: Composite Materials

Section: Chapter Questions

Problem 12.7P: Estimate the transverse tensile strength of the concrete in Problem 12.6.

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Estimate the tensile strength required to prevent cracking in a concretelike material that is cast into a bar, 1.25 m long, and is fully restrained at each end against axial movement. The concrete is initially cast and cured at a temperature of 40°C and subsequently cools to a temperature of -20°C. Assume that the modulus of elasticity is 35 GPa and the thermal coefficient is 9 * 10-6 in./in./°C.
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1.34 Estimate the tensile strength required to prevent cracking in a concrete-like material that is cast into a bar, 50 in. long, and is fully restrained at each end against axial movement. The concrete is initially cast and cured at a temperature of 100°F and subsequently cools to a temperature of 0°F. Assume the modulus of elasticity is 5 million psi and the thermal coefficient is 5 x 10-6 in./in./°F.
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