煤气化废渣用作煤矿充填材料的试验研究  

Research on experiment of the backfill material with coal gasification wastes used as aggregate

作　　者：孙文标[1] 郭兵兵[1] 罗传龙 王自龙[1] 路飏[1] SUN Wenbiao GUO Bingbing LUO Chuanlong WANG Zilong LU Yang(Department of Safety Engineering, Henan University of Engineering, Zhengzhou 451191, China Henan Coal Mine Safety Training Center, Zhengzhou 450001, China)

机构地区：[1]河南工程学院安全工程系,河南郑州451191 [2]河南煤矿安全培训中心,河南郑州450001

出　　处：《中国矿业》2017年第2期166-168,共3页China Mining Magazine

基　　金：煤矿灾害预防与控制河南省高校重点实验室培育基地建设经费资助(编号:200925);河南省科技厅科技攻关项目资助(编号:092102310230);河南省教育厅青年骨干教师资助项目资助(编号:2010GGJS-185)

摘　　要：为了降低煤矿充填的成本,采用煤气化废渣作为集料,以普通水泥作为胶凝材料配置了充填材料,测定了料浆的塌落度、脱水率和充填体的强度。结果表明:随着水泥含量的增加,料浆的塌落度增加,随着煤气化细渣含量的增加,料浆的脱水率降低,在水泥含量为6%时,充填体的强度即可满足自立的要求;采用煤气化废渣作为充填集料,充填材料的成本是可以接受的。In order to decrease the cost of backfill in coal mine,a kind of new backfill material was prepared with coal gasification wastes used as aggregate and ordinary portland cement used as cementitious material.The slump and dehydration rate of the slurry was measured.The strength of the hardened backfill material was also measured.The results show that with the increasing of ordinary portland cement,the slump of the slurry increases,that with the increasing of the fine coal gasification waste,the dehydration rate of the slurry decreases,and that the strength of the hardened backfill material can meet the need of selfsupport when the content of ordinary portland cement is 6%.When coal gasification wastes are used as aggregates,the cost of backfill is acceptable.

关 键 词：煤气化废渣 充填材料 塌落度 脱水率 强度 

分 类 号：TD823[矿业工程—煤矿开采]