摘要
研究了复掺沸石粉和玻璃粉对混凝土抗压强度、干燥收缩、抗碳化和抗氯离子渗透性能的影响,并采用扫描电子显微镜(SEM)和压汞仪分析混凝土的微观结构。结果表明,复掺沸石粉和玻璃粉会降低混凝土的早期抗压强度和干燥收缩,后期能有效提高混凝土的抗压强度、抗碳化和抗氯离子渗透性能,其增强效果随沸石粉掺量提高而提高。复掺沸石粉和玻璃粉能提高混凝土的密实度,降低孔隙率,改善骨料与水泥基体的界面结构,从而提高混凝土的综合性能。
The effects of zeolite powder and glass powder on the the compressive strength,drying shrinkage,carbonization resistance and resistance to chloride ion penetration of concrete were investigated.The microstructures of concrete were also analyzed by scanning electron microscopy(SEM)and mercury intrusion porosimetry(MIP).The results show that the combined addition of zeolite powder and glass powder can decrease the early compressive strength and drying shrinkage of concrete;However,the late compressive strengths,carbonization resistance and resistance to chloride ion penetration of concrete are developed.The combined addition of zeolite powder and glass powder can improve the compaction degree of concrete,reduce the porosity and enhance the interface structure between aggregate and cement matrix.Therefore,the comprehensive properties of concrete are improved.
作者
刘业金
Liu Yejin(College of Architecture&Design Art,Shaoxing Vocational and Technical College,Shaoxing,Zhejiang 312000;Zhejiang Institute of General-Purpose Mortar,Shaoxing,Zhejiang 312000)
出处
《非金属矿》
CAS
CSCD
北大核心
2021年第1期43-46,共4页
Non-Metallic Mines
关键词
沸石粉
玻璃粉
混凝土
干燥收缩
碳化深度
氯离子渗透
zeolite powder
glass powder
concrete
dry shrinkage
carbonation depth
chloride penetration
