聚羧酸系减水剂配制铁路高性能混凝土的研究

研究目的:为了在铁路客运专线高性能混凝土中更好地应用聚羧酸系减水剂,特对多种聚羧酸系减水剂的应用情况进行研究分析。研究结果:必须掌握第三代聚羧酸系新型减水剂的施工应用特点,妥善解决好与水泥和掺合料的相容性问题,严格控制混凝土施工过程,这样配制的混凝土才能满足铁路客运专线高性能混凝土综合性能和耐久性指标的要求。

Research on the Railway High Performance Concrete Made up by Polycarboxylate Water Reduction Agent

Research purposes:The researches and analyses of the applicable situations of many kinds of polycarboxylate water reduction agent are made for better application of polycarboxylate water reduction agent in construction railway passenger dedicated line. Research results:The applicable characteristics of third-generation polycarboxylate water reduction agent in construction should be known well,the consistency between cement and admixture should be well and the concrete construction process should be controlled well for making the mixed concrete to meet the requirements of overall ability and durability of high performance concrete for railway passenger dedicated line.