客运专线铁路高性能混凝土单位用水量控制

Passenger rail line high-performance concrete water control

主要讨论客运专线铁路高性能混凝土施工单位用水量的控制,传统混凝土设计与施工控制思路为水灰比控制,通过在客运专线铁路混凝土工程施工的实践,特别是自动化集中搅拌站的大范围使用,发现单位用水量是保证高性能混凝土的工作性、耐久性的首要前提,同时提出借鉴日本砂石含水率测试方法来改进混凝土搅拌站用水量控制手段,为以后相关工程质量控制提供经验参考。

Focuses on passenger rail line construction of high-performance concrete water control unit,traditional concrete design and construction control for the water-cement ratio control of thoughts,The passenger rail line through the concrete construction practice,In particular,automated and centralized large-scale use of mixing station,Detected in the unit water consumption is to ensure that the work of high-performance concrete,durability of the most important prerequisite for,And found that the unit water is to ensure that the work of high-performance concrete,durability of the most important prerequisite for the same time,learn from Japan proposed gravel moisture test methods to improve water control methods of concrete mixing station,for the future provision of related engineering experience in quality control for reference.