What is the purpose of adding cooling pipes or even using cold water for concrete in concreting operation?

My question is related to water retaining structures/water works. Wanted to know the purpose of adding cooling pipes or even using cold water for concrete in concreting operation.

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    All these measures aim at reducing the placing temperature and reducing thermal cracks induced during concreting of massive pours. Since the final concreting temperature should be the ambient temperature, reducing the initial placing temperature will also lower the peak hydration temperature. Therefore, the temperature difference between the hydration peak and the ambient temperature is reduced accordingly and subsequently the thermal effect to concrete structure can be reduced by controlling the placing temperature.

    Novice Answered on August 29, 2016.
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