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.
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.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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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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