Research progress on coal gangue concrete based on coal gangue activation
In order to reduce the adverse impact of coal gangue on the environment,using coal gangue as building material to produce concrete conforms to the concept of green and sustainable development.Combined with the research progress of coal gangue application in the field of building materials in recent years,the activation methods of coal gangue were expounded,mainly including mechanical grinding,high-temperature calcination,chemical modification,microwave activation and composite activation,and the influences of activated gangue on the mechanical properties,durability,structural components and engineering applications of concrete were studied.A comprehensive review and research on the different activation experiments of coal gangue were conducted,the effects of different activation methods such as cement wrapping,high-temperature calcination,combination of high-temperature calcination and cement wrapping on the basic properties of coal gangue coarse aggregates were compared.the compressive strength,flexural strength,and splitting tensile strength of activated coal gangue coarse aggregate concrete cubes were analyzed,and the application prospects of activated coal gangue were explored such as innovative coal gangue activation technology,reducing activation costs building materials,and expanding the use of activated coal gangue as building materials,providing reference for the bulk solid waste utilization of coal gangue.
万方数据
维普
