大体积钢筋混凝土基础温度裂缝控制技术

以浙江省兰溪市兰江大桥扩建工程的17号墩大体积混凝土承台施工中对温度裂缝控制的情况为例,说明施工中通过采取混凝土浇筑温度的控制,混凝土养护方法和养护温度的控制。以及混凝土浇筑前温度监测点的布置、温度监测数据的采集和混凝土降温阶段的温控监测方法等温控技术措施,是可以控制大体积混凝土表面裂缝和贯穿裂缝产生的。

Techniques for Control of Temperature Cracks on Mass Reinforced Concrete Foundation

With the example of temperature crack control in construction of mass concrete footing for Pier 17 of Lanjiang Bridge Extension Project in the city of Lanxi, Zhejiang Province, it is shown that the surface and through cracks in mass concrete can be controlled through measures for control over the concrete casting temperature, cure methods and cure temperature in construction, including setting up points to monitor temperature before casting, collecting data from temperature monitor and monitoring the temper...