On a day when the temperature is 20.0°C, a concrete walk is poured in such a way that its ends are unable to move.
(a) What is the stress in the cement when its temperature is 50.0°C on a hot, sunny day?
(b) Does the concrete fracture? Take Young’s modulus for concrete to be 7.00 × 109 N/m2 and the compressive strength to be 2.00 × 107 N/m2.
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