碱激发偏高岭土粘结剂的粘结界面性能研究  

Study on the Interface Adhesive Properties of Alkali-activated Metakaolin Adhesive Agent

作　　者：李品科[1] 覃维祖[1] 

机构地区：[1]清华大学,北京100084

出　　处：《施工技术》2008年第12期18-19,共2页Construction Technology

摘　　要：碱激发偏高岭土粘结剂是一种新型材料。从碱激发偏高岭土作为粘结剂粘结石板试验的角度,分析了该结构加固胶的界面粘结性能。试验包括动态材料试验机抗拉试验以及抗氯离子渗透试验。试验结果表明,相同龄期下,碱激发偏高岭土粘结剂所粘结的石板界面抗拉强度明显好于水泥净浆界面剂,说明该粘结剂性能优异;且氯离子渗透系数远远小于水泥净浆界面剂,表现出良好的抗氯离子渗透性能。该胶凝材料对改善界面的致密程度起了很大作用。Alkali-activated metakaolin adhesive agent is a new kind of bonding material. By dynamic tension and ehloride-pemeation resistance experiments, the inteffacial bond property of this material was analyzed. The results show that the tensile strength of slabstone interface using alkaliactivated metakanlin adhesive agent is obviously better than that using cement paste in the same age, moreover, the chloride ion permeability coefficient is lower than that using eement paste. This material can improve the compact degree of interface.

关 键 词：混凝土 粘结剂 界面 抗拉强度 氯离子扩散系数 

分 类 号：TU581.23[建筑科学—建筑技术科学]