摘要
本文对磷酸盐水泥基材料(MPB)的硬化性能 ,包括强度、热膨胀系数、收缩、耐磨性、护筋性能等进行了系统研究。结果表明MPB材料具有许多优异性能 :①强度高 ,发展快 ;②收缩率非常小(体积稳定性好) ;③与旧混凝土之间的性能匹配好 ,粘结强度高 ;④耐磨性高 ;⑤抗钢筋锈蚀性能力强。然而 ,MPB材料长期浸泡在水中强度会有一定程度的倒缩。
In this paper the characteristics and durability of phosphate cement-based materials, such as strength,coefficient of thermal expansion, drying shrinkage, corrosion resistance for reinforcing steel, abrasion resistance, etc., were investigated. Experimental results indicate that the strength development of MPB materials is very rapid, and they possess lots of excellent performance including high strength, resistance to abrasion and protection of reinforcing steel from corrosion. In addition, the MPB materials have good compatibility and bond with old concrete, and very low drying shrinkage. However, when the MPB materials soaked in water for a long time, somewhat strength loss occurs.
出处
《混凝土与水泥制品》
北大核心
2000年第4期8-11,共4页
China Concrete and Cement Products
基金
上海市高教局科技基金
关键词
修补材料
磷酸盐水泥
强度
耐久性
Repair material
Phosphate cement
Strength
Durability
