再生骨料混凝土内钢筋锈蚀影响因素试验研究  

Experimental study on influencing factors of reinforcement corrosion in recycled aggregate concrete

作　　者：孙平平[1,2] 叶良[3] 

机构地区：[1]浙江大学,浙江杭州310058 [2]浙江水利水电专科学校,浙江杭州310018 [3]浙江科技学院,浙江杭州310023

出　　处：《新型建筑材料》2013年第3期19-22,共4页New Building Materials

基　　金：2012年浙江省科技厅公益科学研究项目(2012C21053);浙江科技学院交叉预研项目(2011JC05Y)

摘　　要：通过实验室加速钢筋锈蚀方法,运用线性极化法原理,对不同条件下试件内部钢筋锈蚀参数进行测试和分析,并讨论了不同因素对再生骨料混凝土钢筋锈蚀的影响规律。试验结果表明,再生粗骨料取代率在20%～50%时,钢筋抗锈蚀能力下降不显著,增大混凝土保护层厚度和掺入粉煤灰能有效防止再生骨料混凝土内钢筋锈蚀。In the paper, some corrosion parameters of the different concretes are tested by using the method of electrochemistry linear polarization and accelerating reinforcement corrosion. The influence factors of reinforcement corrosion in the recycled aggregate concrete are discovered by analyzing the experiment result. The result shows that the ability of resistant to rust will not be reduced obviously while the replacement rate of recycled aggregate is between 20% and 50%. The reinforcement can be prevented from corrosion effectively by increasing the thickness of concrete cover and mixing the fly ash.

关 键 词：再生骨料 混凝土钢筋锈蚀 影响因素 试验研究 

分 类 号：TU528[建筑科学—建筑技术科学] X799.1[环境科学与工程—环境工程]