硅酸盐通报2024，Vol.43Issue(11)：4130-4139,10.
PVA胶粉和PP纤维对碱矿渣自流平修补砂浆粘结性能的影响
Effects of PVA Latex Powder and PP Fiber on Bonding Property of Alkali-Activated Slag Self-Leveling Repair Mortar
摘要
Abstract
The bonding interface is the weak link of old concrete structure after repair,and it is an important factor affecting the bonding properties of the interface between repair mortar and concrete matrix.In this paper,AAS cement was used as cementitious material to prepare repair mortar.The effects of polyvinyl alcohol(PVA)latex powder and polypropylene(PP)fiber on the interfacial bonding properties and microstructure of alkali-activated slag self-leveling repair mortar(ASLRM)were studied by fluidity test,interfacial flexural tensile strength test,interfacial tensile strength test and microscopic test.The results show that both PVA latex powder and PP fiber can effectively improve the interfacial bonding properties of ASLRM.When the two are mixed,the interfacial flexural tensile strength of 28 d increases by 43.1%,and the interfacial tensile strength of 14 d increases by 69.9%.关键词
碱矿渣水泥/自流平修补砂浆/PVA胶粉/PP纤维/粘结性能/粘结界面Key words
alkali-activated slag cement/self-leveling repair mortar/PVA latex powder/PP fiber/bonding property/bonding interface分类
建筑与水利引用本文复制引用
何娟,武佳涵,朱明明,任海涛,桑国臣..PVA胶粉和PP纤维对碱矿渣自流平修补砂浆粘结性能的影响[J].硅酸盐通报,2024,43(11):4130-4139,10.基金项目
国家自然科学基金(52078420) （52078420）
