矿相煤矸石C_(11)A_7·CaF_2和C_4A_3快硬喷射水泥的试验研究  

Study of gangue jet cement featured C_(11)A_7·CaF_2and C_4A_3

作　　者：王晓利[1] 宋雪飞[1] 

机构地区：[1]西安科技学院建筑工程系,陕西西安710054

出　　处：《煤炭学报》2002年第6期615-618,共4页Journal of China Coal Society

基　　金：陕西省教育厅重点科研项目(00KJ188)

摘　　要：利用工业废渣煤矸石烧制矿山及地下工程用喷射水泥,该水泥含快硬矿相C11A7·CaF2,C4A3S和C3S,C2S.C11A7·CaF2和C4A3S水化产物提供早期强度,C3S和C2S水化产物保证中后期强度.该水泥初凝5min,终凝10min,4h后强度为7MPa;中后期强度稳定增长,凝结时间和强度满足喷射要求.A type of jet cement including quick hardening mineral phases C11A7·CaF2 ,C4A3 and C3S, C2S is calcined using industrial refuse gangue to apply to mine and underground engineering. Hydrates of C11A7·CaF2  and C4A3 offer early strength of cement, and hydrates of C3S and C2S provide middle and final strength. The initial setting time is 5 min,and final setting time is 10 min. The strength of 4 h age is 7 MPa, and the final strength increases steadily. The setting time and strength of cement meet spouting.

关 键 词：煤矸石 氟铝酸钙 硫铝酸钙 工业废渣 喷射混凝土 快硬水泥 喷射水泥 

分 类 号：TQ172.729[化学工程—水泥工业] TU[化学工程—硅酸盐工业]