不同含铝材料对水泥石固化氯离子能力的影响
Effect of Different Aluminum-Containing Materials on the Ability of Cement Stone to Cure Chloride Ions
张旭 1王英翔 1胡东光 1余海燕1
作者信息
- 1. 天津城建大学 材料科学与工程学院,天津 300384
- 折叠
摘要
采用化学分析、XRD、SEM 等方法研究了掺加不同含铝材料(矿渣、偏高岭土、高铝水泥)水泥石对氯离子固化能力的影响,同时又测定了其强度.研究结果表明:随着含铝材料掺量的增加,水泥石中弗里德尔盐(Friedel's salt)的含量显著增加;矿渣、偏高岭土、高铝水泥掺量分别为 50%,25%,20%时,固化率达到最大值;SO42-会显著降低水泥石对氯离子的固化率;含铝材料掺入合适的量对水泥石的强度有促进作用,并确定偏高岭土、高铝水泥的最佳掺量分别为 20%、10%.
Abstract
In this paper,chemical analysis,XRD and SEM were used to study the ability of cement stones mixed with different aluminum-containing materials(slag,metakaolin and high alumina cement)to cure chloride ions,while their strength was also measured.The results showed that:the content of Friedel's salt in cement stone increased significantly with the increase of aluminum-containing materials,and the curing rate reached the maximum at 50%,25%and 20%of slag,metakaolin and high alumina cement,respectively;SO42-significantly reduced the curing rate of cement stone against chloride ions;the aluminum-containing materials were mixed in to promote the strength.The optimum admixture of kaolinite and high alumina cement were determined to be 20%and 10%,respectively.
关键词
氯离子/含铝矿物/固化能力Key words
chlorine ions/aluminous minerals/curing capacity引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据