The dimension of the mass concrete is very huge. After the concrete is poured, a great deal of cement heat of hydration is given off. The heat quantity congregated in the concrete can not emit easily because of the huge dimension and the rapid rise in the temperature of inside mass concrete, so the temperature difference between internal and external concrete is very great. In the course of the rise and drop of the temperature, the temperature stress inside concrete changes greatly because of the restrictio...
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