磷酸镁水泥在快速修补工程中的应用研究进展  

Review of Magnesium Phosphate Cement Applied in Rapid Repair Engineering

作　　者：杜杰贵 王雄锋 陈波[2] 张丰[2] DU Jiegui;WANG Xiongfeng;CHEN Bo;ZHANG Feng(Zhaotong Yizhao Expressway Investment and Development Co.,Ltd.,Zhaotong,Yunnan657000,China;State Key Laboratory of Hydrology-water Resources and Hydraulic Engineering,Nanjing Hydraulic Research Institute,Nanjing,Jiangsu210029,China)

机构地区：[1]昭通市宜昭高速公路投资开发有限公司,云南昭通657000 [2]南京水利科学研究院水文水资源与水利工程科学国家重点实验室,江苏南京210029

出　　处：《施工技术（中英文）》2022年第15期6-11,共6页Construction Technology

基　　金：国家自然科学基金重点项目(51739008);云南省交通运输厅科技创新及示范项目(云交科教便[2020]62号)。

摘　　要：磷酸镁水泥作为新型凝胶材料,具有早期强度高、凝结速度快、黏结强度高、体积稳定性好、耐久性好等特点,可应用于混凝土快速修补加固工程中。从磷酸镁水泥水化机理及其影响因素、修补机理、界面黏结性能、护筋性能和负温性能等方面,对磷酸镁水泥在快速修补工程中的应用研究进行总结,分析其作为修补材料存在的问题,并对其应用进行展望。As a new type cementitious material,magnesium phosphate cement has the characteristics of high early strength,fast condensation,high bonding strength,good volume stability,good durability and so on.It can be applied to the rapid repairing of concrete structures.From the aspects of hydration mechanism and its influencing factors,repair mechanism,interface bonding performance,reinforcement protection performance and negative temperature performance,the application of magnesium phosphate cement in rapid repair engineering is summarized.The existing problems of magnesium phosphate cement as repair material are analyzed,and the application of magnesium phosphate cement is prospected.

关 键 词：磷酸镁水泥 水化机理 护筋性能 凝结 硬化 

分 类 号：TU525[建筑科学—建筑技术科学]