聚苯乙烯微球改性水泥耐Na_2CO_3腐蚀的研究  

Study on resistance of polystyrene micro-spheres modified cement to Na_2CO_3 corrosion

作　　者：刘振[1] 王琦[1] 田陆飞[1] 贾丽莉[1] 石运中[1] 

机构地区：[1]济南大学材料科学与工程学院,250022

出　　处：《新世纪水泥导报》2011年第1期22-24,6,共3页Cement guide for new epoch

摘　　要：硅酸盐水泥硬化成水泥石之后,在碳酸盐环境下,水泥中的组成成分氢氧化钙会与碳酸盐发生碳化作用从而引起其结构发生破坏,为改善水泥的抗Na2CO3腐蚀性能,在水泥中加入聚苯乙烯(PS)微球,研究水泥石腐蚀前后质量变化和PS微球与水泥作用的机理,以及采用电子扫描显微镜(SEM)分析改性水泥的微观结构形态。After the Portland cement mortar has been hardened,the content of calcium hydroxide incement could react with carbonates resulting indestroy of cement concrete microstructure.The PS(polystyrene) micro-spheres are added into the cement paste for improving its corrosion resistance.Experiments were conducted to study the action mechanism of PS micro-spheres with concrete and qualitative changes in the cement paste before and after being corrupted. By means of SEM, the microstructure of modified cement was observed and analyzed.

关 键 词：碳化 PS微球 密实度 改性水泥 

分 类 号：TQ172.614[化学工程—水泥工业]