中北大学学报（自然科学版）2016，Vol.37Issue(6)：666-670,5.DOI:10.3969/j.issn.1673-3193.2016.06.019
不同材料修补混凝土裂缝后的抗盐蚀性研究
Research on Salt Corrosion Resistance After Repairing the Concrete Crack by Different Materials
摘要
Abstract
Research on salt corrosion resistance after segment's crack repairing is little.Based on simula-ting the shield crack of the segment,different materials are used to repair and the salt erosion resistance is obtained by testing the chloride ion diffusion coefficient and the compressive and flexural strength af-ter eroded by sulfuric acid.The results show that resistance to chloride ion permeability of segment is reduced by using the acrylic copolymer emulsion (BR)and epoxy resin (HY),the Cl- diffusion coeffi-cient of segment repaired by BR and HY is increased by 20% and 8.7% compared with that of the origi-nal matrix,but resistance to chloride ion permeability of segment is increased by using the polyurethane (JZ)or new repair material (XC),the Cl- diffusion coefficient of segment repaired by JZ and XC is re-duced by 11.9% and 10.1% compared with that of the original matrix.The ability of anti-sulfuric acid etchin is decreased after repaired by different materials.The compressive strength of segment repaired by HY by sulfate attack is 95.7% of the non-erosive specimen,which has the lowest decrease rate.The flexural strength of segment repaired by JZ by sulfate attack is 75.6% of the non-erosive specimen,and the decrease is the smallest.关键词
混凝土/管片裂缝/抗盐蚀性/丙烯酸酯共聚乳液/环氧树脂/聚氨亚酯/修补材料Key words
concrete/segment crack/salt corrosion resistance/acrylate copolymer emulsion/epoxy res-in/poly ammonia ester/repair material分类
建筑与水利引用本文复制引用
徐少云,高培伟,肖忠平,张丽芳,陈卫峰..不同材料修补混凝土裂缝后的抗盐蚀性研究[J].中北大学学报（自然科学版）,2016,37(6):666-670,5.基金项目
中央高校基本科研业务费专项资金资助项目(NS2015010) （NS2015010）
中国和江苏省博士后基金资助项目(1301057B,2014M551588) （1301057B,2014M551588）
江苏省住房和城乡建设厅科技项目(2013ZD12) （2013ZD12）
