公路结构物混凝土高性能化的试验研究  

Experimental Study on High Performance Expressway Structural Concrete

作　　者：张景尧 

机构地区：[1]唐山市交通勘察设计院,河北唐山063000

出　　处：《公路交通技术》2007年第4期26-30,共5页Technology of Highway and Transport

摘　　要：结合唐山市2座大桥维修加固工程,对高性能化公路结构物混凝土从原材料特性及配合比设计方法、物理力学性能、应力腐蚀特性、微结构分析、施工工艺与质量控制等方面进行了较为细致的研究,通过试验和分析结构物的运营现状,得出高性能混凝土不仅能延长公路结构物的使用寿命,还可减少养护维修费用,对于公路建设可持续发展具有重要意义。In combination with maintenance and reinforcement project for two bridges in Chongqing, this paper carries out a detailed research to high performance expressway structural concrete, including raw material property, mixing ratio design, physical ＆ mechanical performance, stress ＆ corrosion features, micro- structure analysis, construction process and quality control, etc., Through testing and analyzing the operation status of structure, this paper concludes that the high performance concrete may effectively prolong the service life of expressway structure, reduce maintenance cost and it has important meaning to successive development of expresswayl construction.

关 键 词：公路 结构物 混凝土 高性能化 

分 类 号：U414[交通运输工程—道路与铁道工程]