水利水电科技进展2018，Vol.38Issue(3)：26-31,6.DOI:10.3880/j.issn.1006-7647.2018.03.005
侵蚀性水作用下混凝土的钙溶蚀模型
Modelling of calcium leaching of concrete subjected to aggressive water
摘要
Abstract
To evaluate the calcium leaching for the concrete subjected to aggressive water, a two-dimensional calcium leaching model of concrete is established based on the leaching mechanism of concrete under the effects of soft water and nitric acid. The tortuosity and the constrictivity of the concrete are incorporated into the model. The effect of the interface transition zone (ITZ) on the porosity is also considered. The reliability of the model is validated by the comparisons between numerical and experimental results. The theoretical model was solved using COMSOL software and the characteristics of the two-dimensional calcium leaching of concrete was analyzed. It shows that the leaching depths of concrete subjected to soft water and nitric acid are proportional to the square root of time.关键词
混凝土/钙溶蚀/理论模型/软水/硝酸Key words
concrete/calcium leaching/theoretical model/soft water/nitric acid分类
建筑与水利引用本文复制引用
王海龙,郭崇波,邹道勤,孙晓燕..侵蚀性水作用下混凝土的钙溶蚀模型[J].水利水电科技进展,2018,38(3):26-31,6.基金项目
国家自然科学基金(51378456,51579220) （51378456,51579220）
浙江省自然科学基金(LY16E080004) （LY16E080004）
