摘要
北方寒冷地区的混凝土在服役期间均受氯盐影响,采用正交试验分析再生粗骨料、聚丙烯纤维和引气减水剂掺量对冻融前、后再生混凝土抗氯离子渗透性能的影响,并分析其原因,同时确定了C30再生混凝土最佳配合比,为工程的实际应用提供依据。
The concrete in north cold area during service period may be affected by the chloride. Orthogonal test method is employed to analyze the influence of recycled aggregate, mekralon and water reducing agent proportion to the resistance of chloride iron penetration of recycled concrete before and after freezing and thawing, and the causes are investigated. Meanwhile, optimum proportion ratio is confirmed for C30 recycled concrete, which provides basis for practical application.
出处
《新型建筑材料》
北大核心
2009年第9期5-7,共3页
New Building Materials
基金
国家自然科学基金项目(50779018
50679022)
郑州市科技攻关项目(083STRF40344-4)
河南省教育厅科技攻关项目(2009A560010)
关键词
再生混凝土
氯离子渗透
扩散系数
Recycled concrete： chloride ion penetration：diffusion coefficient
