现代交通技术2012，Vol.9Issue(2)：14-17,4.
连云港盐渍土中钢筋混凝土结构寿命预测
Life Prediction for Reinforced Concrete Structures Exposed to Saline Soil in Lianyungang
夏文俊 1赵阳 1周欣1
作者信息
- 1. 江苏省交通工程建设局,江苏南京200002
- 折叠
摘要
Abstract
Through analyzing salt concentration profile of saline soil in Lianyungang,corrosion characteristics are presented.It is shown that saline soil in Lianyungang has a high concentration of chloride,causing a corrosion risk of middle degree to steel.Additionally,the salt content of saline soil decreases lineally with the increase of depth.Combining the transport mechanisms of chloride in pore solution of concrete,such as diffusion,migration and capillary suction,a model of chloride transport in concrete is given.The calculated results agree well with the test results in situation.Then,chloride concentration profiles in different years are calculated using finite element method.The service lives of reinforced concrete structures with different concrete cover thicknesses are also presented.It is suggested that the thickness of concrete protective cover must be larger than 50 mm.关键词
盐渍土/钢筋混凝土/寿命预测/氯离子迁移/有限元法Key words
saline soil/reinforced concrete/service life prediction/chloride migration/finite element method分类
交通工程引用本文复制引用
夏文俊,赵阳,周欣..连云港盐渍土中钢筋混凝土结构寿命预测[J].现代交通技术,2012,9(2):14-17,4.
