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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 goaf filling, crushing them to prepare filling slurry, systematically studied the influence of coal gangue powder on setting time and mechanical properties of cement-gangue filling slurry, determined that coal gangue The proportion of powder in cement-gangue filling slurry.