跨海桥梁混凝土耐久性初探

随着我国交通事业的迅速发展,混凝土(包括钢筋混凝土和预应力混凝土)在桥梁建设中的应用越来越广,其耐久性问题日益受到人们的关注。该文对世界范围内面临的混凝土耐久性问题进行了介绍,分析了混凝土耐久性出现问题的原因和机理,在此基础上探讨改善混凝土耐久性的方法,并提出与跨海桥梁环境相适应的改进措施。

Primary Discussion on Concrete Durability of Crossing-sea Bridge

With the quick development of the traffic undertaking in China,the concrete(including steel reinforced concrete and pre-stressed concrete) is used more widely in the bridge construction.There is increasing public concern about its durability.The article introduces the concrete durability faced in the range of the world,analyzes the cause and mechanism of concrete durability,and hereon the basis,discusses the method to improve the concrete durability and puts forward the improving measures suitable for the environment of the crossing-sea bridge.