公路结构物水泥混凝土耐久性研究动态

水泥混凝土是一种耐久性材料，对其性能的研究，不仅涉及到材料科学和结构工程科学的课题，也涉及到公路建设的可持续发展问题。近年来，由于公路结构物混凝土早期破坏的事例越来越多，昂贵的重建和维修费用已使公路管理部门不堪重负，并直接影响到新建项目的实施，也促使人们对混凝土的耐久性提出了更高的要求。本文从目前公路混凝土结构物的使用现状，分析了混凝土结构的破坏机理，并提出了相应的发展对策。

Recent Development in Researches on Cement Concrete Durability of Highway Structure

Cement concrete is a kind of durable material, its property study not only involves topics on the subject of material and structural engineering but also deals with the sustainable development of highway construction.In recent years,more and more early damage occur in the highway structural concrete,and thus the highway management departments can't bear the burden on rebuilding and maintenance. It has a direct impact on new projects and impels people to make greater demands on concrete durability. From the present situation of highway concrete structure,the damage mechanism of concrete structure is analyzed and some relevant developmental countermeasures are raised