Translated Title
Research Progress on Resource Utilization of Coal Gangue by Geological Polymerization Reaction
Translated Abstract
Coal gangue is a solid waste produced in the process of coal mining and washing.The accumulation of coal gangue not only occupies a large area of land,but also causes pollution of water,air and soil.The green large-scale consumption of coal gangue is imminent.The physical and chemical properties,direct utilization,upgrading utilization and geological polymerization reaction utilization of coal gangue were summarized.It was pointed out that the geological polymerization reaction utilization was the second generation of green cementing technology after ordinary Portland cement,which had both large-scale consumption and high-value utilization of coal gangue.The preparation materials,formation process,reaction characteristics and mechanism of geopolymer were systematically introduced,as well as its application in main scenarios such as erosion-resistant materials,high temperature resistant building materials,solidified heavy metals and radioactive elements.At the same time,it was pointed out that the geological polymerization reaction of coal gangue had a wide range of resource utilization,the utilization process was green and the energy consumption was low,but there were still problems such as few industrial tests and difficulty in large-scale promotion.The latest research on the utilization of coal gangue resources was summarized to further provide reference for large-scale green consumption of coal gangue.
Translated Keyword
Coal gangue
Geological polymerization reaction
Green consumption
Resource utilization
Access Number
WF:perioarticalkyyjykf202312033
