A PRACTICAL MODEL TO PREDICT CARBONATION DEPTH OF CONCRETE

摘要：

Water-cement ratio,cement content,CO2 concentration,environment temperatureand relative humidity have been proved to be the most important factors influencing thecarbonation of concrete. On the basis of the prediction mathematical model of concretecarbonation depth,proposed by Zhang et al.,a practical prediction model was developed toconsider the influence of environment temperature and the relative humidity (RH). Theefficiency and applicability of the model were verified by carbonation investigation results ofconcrete structures in natural conditions. The comparison results between theorecticalprediction and in situ investigation show that the model is suitable to predict the carbonationdepth of Portland cement concrete structures in general atmosphere conditions.

关键词： concrete carbonation prediction model environment temperature relative humidity

作者: Dou X.J. Huang Q.H. Gu X.L. Zhang W.P. Jin X.Y. Jin N.G.

作者单位: Department of Building Engineering,Tongji University,PR China Department of Civil Engineering,Zhejiang University,PR China

会议类型: 国际会议

会议名称: The International Conference on Durability of Concrete Structures(2008年混凝土结构耐久性国际学术会议)

会议地点: 杭州

会议语种:英文

页码: 308-312

在线出版日期: 2008-11-01（万方平台首次上网日期，不代表论文的发表时间）