磷酸镁水泥的制备及其快速修补应用研究进展  

Preparation and Rapid Repair Application of Magnesium Phosphate Cement

作　　者：徐颖[1] 邓利蓉[1] 杨进超[1] 左联[1] 杜广报 芦玉峰[1] 李莎莎[1] XU Ying;DENG Lirong;YANG Jinchao;ZUO Lian;DU Guangbao;LU Yufeng;LI Shasha(Northwest Institute of Nuclear Technology,Xi’an 710024)

机构地区：[1]西北核技术研究所

出　　处：《材料导报》2019年第S02期278-282,共5页Materials Reports

摘　　要：磷酸镁水泥(Magnesium phosphate cement,MPC)是一种基于氧化镁和磷酸盐的酸碱反应而凝结硬化的新型胶凝材料。该材料具有凝结速度快、早期强度高、粘结性能好、干燥收缩小、耐磨、抗冻等特点。优异的性能使其能够替代传统水泥基修复材料,满足水泥混凝土结构修复要求,已成为目前快速修补材料研究的热点之一。本文对近年来MPC用作快速修补材料方面的研究进展做了综述,分别讨论了MPC的凝结时间、流动性、强度发展、与旧混凝土结构的粘结性能、体积稳定性及其影响因素。在此基础上讨论了MPC作为修补材料存在的问题并给出了相关的建议。Phosphate cement-based materials is a new cementitious material condensation hardening a acid-base reactions,with rapid condensation sclerosis,high early strength,high compressive strength and little dry shrinkage,good wear resistance and good frost resistance,etc.Its excellent performance enables it can replace the traditional cement-based repair materials and meet the requirements of cement concrete structure repair.It has become one of the research hotspots of rapid repair materials.In this paper,the research progress of MPC as rapid repair material in recent years is reviewed.The setting time,fluidity,strength development,bong performance of MPC with old concrete structure,volume stability and inf-luence factors are discussed respectively.On this basis,the problems of MPC as repair material are discussed and some suggestions are given.

关 键 词：磷酸镁水泥 快速修补 水化机理 性能 

分 类 号：TU528.31[建筑科学—建筑技术科学]