A concrete walk is poured on a day when the temperature is 20°C in such a way that the ends are unable to move.
What is the stress in the cement on a hot day of 50°C? Does the concrete fracture? Take Young’s modulus for
concrete to be 7.00x 109 N/m2 and the compressive strength to be 2.00 x 109 N/m2.
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