Light filling material for mines

The invention discloses a light filling material for mines. The filling material is prepared from components in parts by mass as follows: 65-85 parts of a base material, 10-15 parts of a coagulant, 1-5 parts of an excitant, 1-10 parts of an adjusting admixture, 0.1-1 part of a foaming agent and 0.1-1 part of a foam stabilizer. To meet the demands for upper corner filling and airtight wall construction, the light filling material has the characteristics of being light in weight, non-ignitable, small in density, adjustable in strength and setting time, excellent in expansibility and crushing resistance, free of obvious attenuation of water passing strength, environment-friendly, low in cost and the like and has remarkable effects on filling in a drilling site and upper corners of the mine, and the problems of gas accumulation and spontaneous combustion of coal can be effectively solved. 本发明公开了种矿用轻质充填材料，充填材料各组分以质量份计为，基料65～85份，凝固剂10～15份，激发剂1～5份，调凝剂1～10份，发泡剂0.1～1份，稳泡剂0.1～1份。针对上隅角填充和构建密闭墙需求，本发明轻质充填材料具有轻质不燃、密度小、强度可调