Gangue comprehensive integrated utilization method

The invention relates to a gangue comprehensive integrated utilization method and relates to the technical field of gangue application. The method includes the steps of firstly, using gangue, desulfurized gypsum, aluminum ash and electroslag to prepare a sulphoaluminate cementing material; secondly, using gangue and city sludge to prepare light and high-strength ceramsite; thirdly, using the sulphoaluminate cementing material to perform wrapping modification on gangue to prepare gangue ecological aggregate; fourthly, using the sulphoaluminate cementing material and the gangue ecological aggregate as the raw materials to prepare water-permeable concrete; fifthly, using the sulphoaluminate cementing material, the light and high-strength ceramsite and the gangue ecological aggregate as the raw materials to prepare light ecological concrete. The method has the advantages that the gangue is used as the main raw material, the desulfurized gypsum, the aluminum ash, limestone, the city sludgeand the like are used as