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huo zai sun shang gang jin hun ning tu dian hua xue zai jian hua ji shu de yan jiu
Author(s): 
Pages: 20-24
Year: Issue:  1
Journal: Ready-mixed Concrete

Keyword:  火灾混凝土 钢筋锈蚀 电化学再碱化修复;
Abstract: 混凝土电化学再碱化方法主要是应用电解和电渗原理,在直流电的作用下,使混凝土内钢筋周围产生OH-,同时使Na+等碱性阳离子渗入到混凝土内部,恢复钢筋周围的碱性环境,使钢筋重新钝化。通过对预制钢筋混凝土试件的再碱化试验,实现了再碱化法在火灾混凝土中的应用,提出了火灾损伤钢筋混凝土再碱化修复的关键参数值,为该项技术的推广应用奠定了基础。
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