Abstract:In order to improve the utilization rate of gangue, and reduce environmental hazards, taking Longshan and Huafeng gangue as main materials, the effect of types and mixing amount of foaming agent, particle size of glass raw material, foaming temperature and foaming time to the preparation of coal gangue foam glass have been studied. It is determined that the optimum process condition is as follows: grinding ground glass to 200 mesh screens, sintering temperature is 1000℃, sintering time is 30 minutes, and the addition of foaming agent is 5%. The foam glass produced by experiment can meet the requirement of JC/T 6472005 standard. It could be widely used in the external wall insulation, chemical pipes, and the thermal insulation protect of pipe network on water supply and drainage.