我国高速铁路高性能混凝土的应用与展望

Application and Prospect of High Performance Concrete for High-speed Railway in China

铁路建设近几年进入了迅猛发展阶段,为保证混凝土结构物的正常使用寿命,铁路相关部门制定了铁路混凝土结构耐久性设计暂行规定、铁路混凝土工程施工质量验收补充标准、客运专线高性能混凝土暂行技术条件、铁路混凝土工程施工技术指南、桥梁、轨道板及轨枕混凝土技术条件等系列技术标准,较大限度地保证铁路工程建筑物正常使用服务年限。对我国高速铁路/客运专线的建设情况、铁路混凝土结构耐久性要求、桥梁和无砟轨道混凝土工程等相关技术要求以及高性能混凝土的应用进行介绍。

During the rapid development of railway construction in China recent years, a serial of standards on design, construction and quality acceptance are enacted by Ministry of Railways to ensure the serving life of concrete structure. This paper introduces the construction information of high speed railway and railway passenger dedicated line, the technique requirements of concrete durability, the technical standards of concrete of bridge and ballastless track and the application of HPC（high performance concrete） in China railway.