矿用发泡水泥注浆材料性能研究  

Study on Performance of Mining Foamed Cement Grouting Material

作　　者：孙扬 王福生 崔啸 SUN Yang;WANG Fu-sheng;Cui Xiao(Academic Affairs Office,North China University of Science and Technology,Tangshan Hebei 063210,China;College of Mining Engineering,North China University of Science and Technology,Tangshan Hebei 063210,China;Mining Development and Safety Technology Key Lab of Hebei Province,Tangshan Hebei 063210,China)

机构地区：[1]华北理工大学教务处,河北唐山063210 [2]华北理工大学矿业工程学院,河北唐山063210 [3]河北省矿业开发与安全技术实验室,河北唐山063210

出　　处：《华北理工大学学报（自然科学版）》2023年第3期118-124,共7页Journal of North China University of Science and Technology：Natural Science Edition

基　　金：华北理工大学省属高校基本科研业务费项目(JQN2020036)。

摘　　要：为了解决未采掘完成矿井重新开采存在的安全问题,探究了新型注浆材料的性能与其性能优化方法。研究结果表明,发泡剂浓度基本与发泡倍数成正比,随着发泡剂温度不断升高,发泡倍数随之增加,考虑工程实践成本,发泡剂浓度为1:20、温度在40~50℃时,效果最好;当泡沫掺量为4倍、胶凝材料水灰比为0.8:1时,泡沫水泥的孔隙率较大且较为稳定。In order to solve the safety problem of remining uncompleted mines,the performance of new grouting materials and their performance optimization methods were investigated.The research shows that the concentration of foaming agent is basically proportional to the foaming ratio.As the temperature of foaming agent increases,the foaming ratio increases.Considering the cost of engineering practice,the best effect is obtained when the concentration of foaming agent is 1:20 and the temperature is between 40℃and 50℃;When the content of foam is 4 times and the water cement ratio of cementitious material is 0.8:1,the porosity of foam cement is larger and more stable.

关 键 词：发泡水泥 注浆材料 发泡倍数 泡沫密度 孔隙率 

分 类 号：TD823.7[矿业工程—煤矿开采]