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温度变化导致混凝土裂缝 ,是混凝土工程设计者和施工者都感棘手的问题 ,对此人们进行了大量的研究 ,在施工阶段温控和限制裂缝方面也取得了进展 ,但不能说此问题已经完全解决。随着为了解决更大体积混凝土坝的施工不断改进施工设备与工艺过程 ,而大大加快施工速度 ,大体积混凝土温控问题的复杂性和重要性日益突出。小浪底工程对大体积混凝土采用多种措施 ,有效地减少了裂缝的发生数量、频率和严重的裂缝。因此 ,必须选择适宜的温控方式和程序
Temperature changes lead to concrete cracks, which are both problems for concrete designers and constructors. Much research has been done on this subject, and progress has also been made in temperature control and crack limitation during the construction phase. However, it can not be said that this problem has been completely solved solve. With the continuous improvement of construction equipment and process in order to solve the construction of larger volume concrete dam, the construction speed is greatly accelerated, and the complexity and importance of mass concrete temperature control problems become increasingly prominent. Xiaolangdi project for mass concrete using a variety of measures to effectively reduce the number of cracks occurred, the frequency and serious cracks. Therefore, we must choose the appropriate temperature control methods and procedures