高铁客运专线高性能混凝土配合比设计及施工常见问题的解决措施

Design of Mixture Ratio and the Solving Measures of Common Constrnction Problems in HPC for Passenger Dedicated Railway

结合高耐久、高性能混凝土配合比的设计方法和聚羧酸系外加剂的性能特点,以及客运专线所处施工环境原材料的实际现状,指出高铁客运专线C30-C50高性能混凝土的配合比设计方法,对混凝土施工中一些常见问题进行原因分析并提出解决措施,以引起有关单位的重视,保证客运专线的混凝土施工质量。

With the method of mix proportion design for high durability and high performance concrete, and the characters of polycarboxy／late superplasticizer, and also with the fact of the construct environment and the raw and processed materials of the special passenger transport railway line, we find out the method of mix proportion design for high performance concrete of C30 - C50 for the special high - speed passenger transport railway line, to analysis the reason of some common problems in concrete casting and how to solve them, Wish that the related units should attach importance to the problems, so as to ensure the construct quality of the special passenger transport railway line.