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Author:

丁博 (丁博.) | 张金喜 (张金喜.) | 王建刚 (王建刚.) | 党海笑 (党海笑.)

Abstract:

为探究掺有硅酸盐水泥的矿渣地聚合物碱激发效应,以Na_2SiO_3、NaOH为激发剂,研究了不同类型碱及不同碱掺量对于矿渣—硅酸盐水泥复合胶凝材料凝结时间、抗压强度、抗折强度、收缩率的影响,并结合微观测试手段SEM观察水化产物微观结构。结果表明:2种碱的加入均能显著缩短复合材料的凝结时间,加碱组初凝时间仅为未加碱组的12.3%~19.3%;碱的添加可以使复合胶凝材料快速实现早强,与未加碱组相比,掺加3%Na_2SiO_3可使3d抗压强度提升12.5%。SEM分析发现,28d强度因材料内部出现微孔与微裂缝而未能达到理想增长状态;碱激发复合胶凝材料具有较高的抗折强度,掺加3%Na_2SiO_3和1...

Keyword:

复合胶凝材料 抗压强度 黏结性能 微观结构 碱激发

Author Community:

  • [ 1 ] 北京工业大学

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Source :

Year: 2021

Language: Chinese

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 23

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