高速铁路大体积箱梁混凝土温度控制要点

The large volume concrete box girder temperature control key points of high speed railway

箱梁混凝土温度控制对于箱梁质量起着至关重要的作用,重点介绍了有效控制水泥熟料中C3A含量,合理选择混凝土配合比中掺合料比例,施工过程的原材料温度、混凝土入模温度的监控以及蒸汽养护时的温度控制等要点,通过温度控制,保证了箱梁施工质量。

The concrete box girder temperature control played a vital role to box beam quality, this paper focused introduced to effectively control C3 A content in cement clinker, reasonably selected admixture proportion of concrete ratio, the monitoring of raw material temperature, concrete stable and temperature control of steam curing in construction process and other key points, through the temperature control, ensured the box gird- er construction quality.