混凝土养护效果电阻率评价法探索
Jianzhu Cailiao Xuebao/Journal of Building Materials(2011)
Abstract
基于混凝土电阻率与含水率的关系,提出了一种定量评价混凝土养护效果的方法,即将设定接触面积的铜片电极以不同深度埋入混凝土试件内部,用恒电位计测试不同养护条件下混凝土试件内部电阻随深度的变化,根据计算出的混凝土内外层电阻率差值来判定养护的充分性.结果表明:可建立一条充分养护和不良养护之间的定量分界线,即当内外电阻率差值△ρ≤10 kΩ· cm时可判定混凝土得到了充分养护,当△ρ≥50 kQ·cm时则可判定混凝土养护不良.
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Key words
Concrete,Curing,Electrical resistivity,Water permeability
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