MICP修补液与传统混凝土裂缝修补材料的对比研究  

Comparative Study of MICP Repair Solution and Traditional Concrete Crack Repair Materials

作　　者：王亚奇 丁文胜 张金飞 张国荣 陈歆 朱小骏 韩依璇 戴会生[6] 

机构地区：[1]镇江市公路管理处,212002 [2]312国道镇江段公路管理站,镇江212003 [3]苏交科集团股份有限公司,南京211112 [4]在役长大桥梁安全与健康国家重点实验室,南京211112 [5]河海大学土木与交通学院,南京210098 [6]天津港保税区航保商品砼供应有限公司,300451

出　　处：《混凝土与水泥制品》2018年第5期10-14,共5页China Concrete and Cement Products

基　　金：江苏省交通运输厅公路局科研项目

摘　　要：采用微生物诱导碳酸钙沉积(MICP)修补液、环氧胶液和聚合物水泥三种不同修补材料对带裂缝(宽度为0.1mm、0.2mm)混凝土进行修补,测试修补后混凝土的力学性能和耐久性能,对比分析了不同材料的修补效果。结果表明,MICP修补液修补后可达到基准混凝土力学性能的70%,其修补效果比环氧胶液、聚合物水泥材料略差;耐久性方面MICP修补液与环氧胶液、聚合物水泥效果相当;同时综合环保性和经济性可知,MICP技术在实体桥梁混凝土裂缝修补中具有可行性。Microbial induced carbonate precipitation（MICP）, epoxy liquid and polymer cement were were used to repairthe cracked concrete. Mechanical properties and durability of the repaired concrete were tested to analysis the repair effectof different materials. The results show that after repairing of MICP repair solution, the mechanical properties of concretespecimencan reach 70% of the base concretespecimen. The repair effect of MICP repair solutionis is slightly worse than thatof the epoxy liquid and polymer cement materials, and the influence of three kinds on the durability of the repair materialsis basically the same. At the same time, it is known that MICP technology is feasible in repairing concrete crack of bridge,by combining environmental protection efficiency and economyefficiency.

关 键 词：MICP技术 裂缝修补 力学性能 耐久性能 环氧胶液 聚合物水泥 

分 类 号：TU528.042[建筑科学—建筑技术科学]