【摘要】 为了探索满足煤矿膏体充填要求的胶结材料,通过试验比较了普通硅酸盐水泥、高水速凝材料、单浆料与改性水泥对粉煤灰、河砂的胶结性能。结果表明:普通硅酸盐水泥、单浆料做胶结剂胶结河砂与粉煤灰,短期强度较低,远达不到煤矿充填需要;高水速凝材料虽然能达到煤矿充填要求,但与单一胶结材料相比,充填管路系统复杂、基建投入大、生产管理不便等缺点,不具有技术优势;改性水泥作胶结剂,胶结效果较好,能达到煤矿充填要求。更多还原

【Abstract】 Cementation property of ordinary Portland cement,material with high water content,single sludge materail and modification cement has been analyzed to flay ash and river sand in order to find appropriate cementing materail applied in coal mine paste filling.Experiments result indicated that ordinary portland cement and single sludge materail can not meet coal mine paste filling demand.Material with high water content has not technology advance due to complicate filling system,higher capital construction investment and inconvenient production management. Modifiction cement may meet coal mine paste filling with favourable cementation effect.更多还原