摘要
为使煤矸石在采空区充填中得到充分利用,将其破碎后制备充填浆体,系统地研究了煤矸石粉末对水泥-煤矸石充填浆体凝结时间及力学性能的影响,确定了煤矸石粉末在水泥-煤矸石充填浆体中的添加比例。
In order to make full use of coal gangue in gob stowing, the cemented paste backfill was prepared after it was broken.Through systematical analysis of respective impact of coal gangue powder on setting time and mechanical properties,the proportion of coal gangue powder was determined.
出处
《煤炭技术》
北大核心
2017年第11期26-28,共3页
Coal Technology
关键词
煤矸石
充填浆体
充填开采
coal gangue
backfill paste
filling mining
