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不同含铝材料对水泥石固化氯离子能力的影响

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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%.
Effect of Different Aluminum-Containing Materials on the Ability of Cement Stone to Cure Chloride Ions
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.

chlorine ionsaluminous mineralscuring capacity

张旭、王英翔、胡东光、余海燕

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天津城建大学 材料科学与工程学院,天津 300384

氯离子 含铝矿物 固化能力

2024

天津城建大学学报
天津城市建设学院

天津城建大学学报

影响因子:0.385
ISSN:2095-719X
年,卷(期):2024.30(1)
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