混凝土碳化机理及预测模型分析

本文从离子迁移的角度详细地分析了混凝土的碳化机理。并论述了氯离子和碳化同时存在时混凝土加速腐蚀的现象。然后，回顾了国内外现有的碳化深度预测模型，并分别指出其优缺点。最后，结合本人在试验基础上得到的混凝土碳化深度预洲模型，通过一个实际工程对各种模型进行了对比分析。发现对于同一工程用不同的预测模型计算，得到的数据差别很大，现有预测模型不具有普遍性。

Discussion on Mechanism and Model Analysis for Prediction on Carbonation Depths of Concrete

In this paper,based on the ion transfer,the mechanism of concrete carbonation is analyzed,the accelerated corrosion phenomenon of concrete was discussed when Cl-and carbonation coexist in the concrete. Then various existing predictive models of concrete carbonation depth are summarized and discussed respectively,with the advantages and disadvantages pointed out. Finally,combining with the predictive models of comcrete carbonation which was based on the trial,some kinds of predictive models of concrete carbo...