Autoclaved porcelain powder aerated concrete insulation board

Abstract

The invention discloses an autoclaved porcelain powder aerated concrete insulation board. The autoclaved porcelain powder aerated concrete insulation board is prepared from the following components inparts by weight: 23-50 parts of ceramic waste residue powder, 10-15 parts of quicklime, 15-20 parts of cement, 2-4 parts of gypsum, 3-5 parts of calcium carbonate, 2-5 parts of aluminum powder, 3-6 parts of ferrosilicon powder, 5-8 parts of SiO2, 2-4 parts of MgO and 40-100 parts of water. According to the autoclaved porcelain powder aerated concrete insulation board, the superfine ceramic wasteresidue powder, the aluminum powder and a ferrosilicon powder foaming agent are adopted, a plurality of additives are added, a superfine powder slurry foaming forming method is established, so that the problem that the pouring stability of low-density 160-200 kg / m<3> slurry is poor can be solved, a blank forms a porous structure with solid pore wall, high closed pore percentage, small pores, thinpore wall, circular pore shape and uniform size, and therefore good thermal insulation performance is achieved.

Description

technical field [0001] The invention belongs to the technical field of external thermal insulation of building exterior walls and roof thermal insulation, and in particular relates to an autoclaved porcelain powder aerated concrete thermal insulation board. Background technique [0002] At present, building exterior wall insulation materials can be divided into two categories: organic insulation materials and inorganic insulation materials. Organic insulation materials mainly include molded polystyrene foam (EPS), extruded polystyrene foam (XPS), polyurethane (PU) and phenolic foam (PF), etc. These materials are light in weight, good in thermal insulation performance, Low water absorption and other advantages, but poor heat resistance, easy to burn, and release a lot of heat when burning, produce a lot of toxic smoke, not only will accelerate the spread of the fire, but also easily cause casualties, so these materials are used in building exterior wall insulation technology ...

AI Technical Summary

Problems solved by technology

However, from the perspective of the impact on material preparation, because the ceramic waste slag powder is too fine, the slurry thickens quickly and has a high viscosity, which will inevitably hinder the aluminum powder from forming pores, and it is difficult to ensure casting stability.

The ultra-low density slurry has poor pouring stability (mold collapse, bubbling, shrinkage and sinking, etc.), and it is difficult to form gas

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