Preparation method of light high-strength solid-waste-based foaming geopolymer self-insulation building block

The invention relates to a preparation method of a light high-strength solid-waste-based foaming geopolymer self-heat-preservation building block, which comprises the following steps: by taking fly ash as a main raw material, reacting a substance containing lime and a sulfate substance to obtain a product, and reacting the product with the fly ash to carry out strength excitation to obtain the light high-strength solid-waste-based foaming geopolymer self-heat-preservation building block. In the preparation process, a geopolymer composite excitation technology and a concrete foaming technology are combined, the pore structure is improved through silica fume, the compressive strength of the foaming geopolymer self-heat-preservation building block is improved, and meanwhile the heat conductivity coefficient is reduced; hollow glass beads with excellent thermal insulation performance are added, so that the thermal insulation capacity of the building block is remarkably improved, and the heat conductivity coeffici