新型CF封孔材料的膨胀作用机理及其关键影响因素实验研究  

Experimental study on expansion mechanism of new CF sealing material and the key influencing factors

作　　者：李树刚[1,2] 张静非 张超[1,2,3] 林海飞 杨会军[1,2] LI Shugang1＇2, ZHANG Jingfei1＇2, ZHANG Chao1＇2＇3, LIN Haifei1＇2, YANG Huijun1＇2(1. School of Safety Engineering, Xi＇an University of Science and Technology, Xi＇an, Shaanxi 710054, China; 2. Key Laboratory of Western Mine Exploitation and Hazard Prevention of the Ministry of Education, Xi＇an University of Science and Technology, Xi＇an, Shaanxi 710054, China; 3. Key Laboratory of Gas and Fire Control for Coal Mines, China UniversityofMining＆Technology, Xuzhou, Jiangsu 221116, Chin)

机构地区：[1]西安科技大学安全工程学院,陕西西安710054 [2]西安科技大学西部矿井开采及灾害防治教育部重点实验室,陕西西安710054 [3]中国矿业大学煤矿瓦斯与火灾防治教育部重点实验室,江苏徐州221116

出　　处：《采矿与安全工程学报》2018年第2期415-421,共7页Journal of Mining & Safety Engineering

基　　金：国家自然科学基金科学仪器基础研究专款项目(51327007);国家自然科学基金项目(51504189;51674192);陕西省青年科技新星项目(2014KJXX69)

摘　　要：为了探究自主研制的新型CF封孔材料各组分及水料比对其膨胀性能的影响,基于该CF封孔材料的化学膨胀机理,确定了影响膨胀性能的关键影响因素;通过单因素实验探究了各关键影响因素对CF材料膨胀性能的影响,并根据中心组合(Box-Behnken)实验设计原理,应用响应(曲)面分析法(RSM)进一步确定了各关键影响因素对其膨胀性的显著性大小,得出了最优实验参数。实验结果表明:各关键影响因素的显著性排序为:铝粉掺量(掺有等量Ca O)>水料比>石膏掺量;并结合现场实际情况,以CF封孔材料膨胀率为主要指标,同时考虑凝结时间和强度,得出最优实验参数为:铝粉掺量0.56%(掺有等量的Ca O)、石膏掺量2%、水料比0.6。In order to investigate the effects of the components and water-cement ratio of the new CF sealing material on its expansion property, the key influencing factors of expansion property is determined based on the chemical expansion mechanism of the CF sealing material. Through adopting the single factor experiments, the effect of each key factor on expansion property is determined. Further- more, the significance of each factor＇s effect are analyzed, according to the experimental design princi- ples of Box-Behnken and the analytical method of response surface methodology （RSM）. Finally, the optimal experimental parameters are obtained. Results show that the effect-significance order of all the key influencing factors is： the aluminum content （mixed with equal amount of CaO）〉water-cement ratio 〉gypsum content. Meanwhile, the optimal experimental parameters （aluminum content of 0.56% （mixed with equal amount of CaO）, gypsum content of 2% and water-cement ratio of 0.6） are obtained with the expansion rate as the main indicator, as well as taking the setting time and strength into account.

关 键 词：封孔材料 关键影响因素 膨胀率 响应(曲)面分析法 

分 类 号：TD712[矿业工程—矿井通风与安全]