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既有建筑混凝土中氯离子固化比例的试验研究

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摘要 我国近海和沿海地区既有混凝土结构广泛存在的氯离子拌制掺入和渗透侵蚀问题严重威胁结构耐久性。目前工程实践中由于忽视部分氯离子固化的影响,多直接将测得的游离态氯离子含量与规范中的总掺入量限值进行比较来评定,从而低估了既有建筑的实际耐久性风险。本文通过试验研究得出了氯离子固化的大致比例范围,对既有钢筋混凝土结构的耐久性评定可起到重要的参考作用。
作者 何春凯
出处 《深圳土木与建筑》 2012年第2期59-62,共4页
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