激发粉煤灰制备膨胀剂的可行性研究  

FEASIBILITY RESEARCH OF MAKING EXPANSE AGENT FLY-ASH

作　　者：薛爽[1] 陈吉春[1] 胡睿[2] 

机构地区：[1]武汉理工大学资源与环境工程学院,湖北武汉430070 [2]江西省水利规划设计院,江西南昌330029

出　　处：《资源环境与工程》2006年第3期323-326,共4页Resources Environment & Engineering

摘　　要：针对明矾石较高含碱量而引起的碱集料反应问题,拟采用粉煤灰代替明矾石与硬石膏共同作用的方法来生成具有膨胀作用的钙矾石,试验结果表明,试件具有较好的膨胀率及抗压强度。Alunite with too much alkali will produce alkaline -aggregate reaction. In the research, alunite is replaced by fly - ash to react with anhydrite to generate ettringite, which is expandable. The result shows that the operation is effective and the testing sample has good expansion rate and resistance.

关 键 词：粉煤灰 明矾石 硬石膏 钙矾石 膨胀 

分 类 号：X773[环境科学与工程—环境工程]