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在现浇水泥混凝土路面施工中,水泥混凝土硬化期间,水泥在水化过程中会释放出水化热,由于水化热所产生的温度变化和混凝土的收缩而产生温度应力受到外部条件约束,导致水泥混凝土路面出现裂缝。因此,采取合理措施降低和约束水化热,控制混凝土内外温差,并防止过大干缩是水泥混凝土路面质量控制的关键。
In the construction of cast-in-place cement concrete pavement, during the hardening of cement concrete, cement hydration will be released during the hydration process, and the temperature stress due to the temperature change caused by hydration heat and shrinkage of concrete is restrained by external conditions, Concrete pavement cracks. Therefore, taking reasonable measures to reduce and restrain heat of hydration, controlling the temperature difference between inside and outside the concrete, and preventing excessive shrinkage is the key to the quality control of cement concrete pavement.