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碳化反应会加速混凝土中钢筋的锈蚀,缩短钢筋混凝土的服役寿命,已经引起了土木工程材料领域的特别重视。本文首先对已有的碳化模型进行分类,然后根据国内外近几年报道成果重点分析了碳化理论模型的最新研究进展。同时,分析了碳化理论模型中的二氧化碳的扩散系数、孔隙率、饱和度、碳化反应项、pH值和碳化深度等热点问题,最后归纳了碳化反应理论模型常用的求解方法,并对今后碳化反应模型的研究重点进行了展望。
Carbonization reaction will accelerate the corrosion of reinforced concrete, shorten the service life of reinforced concrete, has attracted special attention in the field of civil engineering materials. In this paper, the existing carbonation models are classified firstly, and then the latest research progress of the carbonation theory model is analyzed emphatically according to the results reported in recent years at home and abroad. At the same time, hot issues such as carbon dioxide diffusion coefficient, porosity, saturation, carbonation reaction, pH value and carbonization depth were analyzed. Finally, the common methods for solving the carbonation reaction model were summarized, and the carbonation reaction The research focus of the model is prospected.