On a day when the temperature is 20degc a concrete walk is, Ask an Expert

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On a day when the temperature is 20°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°C on a hot, sunny day?

(b) Does the concrete fracture? Take Young's modulus for concrete to be 7.00 x 10⁹ N/m² and the compressive strength to be 2.00 x 10⁷ N/m².

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