Waste foam concrete insulation material and preparation method thereof

Abstract

The invention discloses a waste foam concrete insulation material and a preparation method thereof. The waste foam concrete insulation material is characterized by comprising the following components in percentage by mass: 5-15 percent of polystyrene granule with particle size of 2-10mm, 20-50 percent of cement, 15-25 percent of aggregate, 0.2-3 percent of function modifier and 4-7 percent of water, wherein the function modifier comprises a foaming agent, a foam stabilizer, a water reducing agent, an early strength agent and a coagulant, the foaming agent can be sodium dodecyl benzene sulfonate, the foam stabilizer can be arachidic acid or triethanolamine, the water reducing agent can be polycarboxylate or calcium lignosulphonate, the early strength agent can be sodium silicate, and the coagulant can be calcium chloride. The waste foam concrete insulation material is mainly prepared from waste polystyrene foam, and thus the recycling rate of waste can be effectively increased, energy resources are saved and the environment is protected.

Description

technical field [0001] The invention relates to a waste foam concrete thermal insulation material and a preparation method thereof, and relates to a building thermal insulation material, which belongs to the field of building materials, in particular to a thermal insulation material made of cement, waste polystyrene foam particles plus a functional regulator, and the thermal insulation material method of preparation. Background technique [0002] At present, the thermal insulation materials used in the market mainly include perlite blocks, color steel plates, polystyrene foam boards, etc. These various products have certain technical problems. The cost of perlite block products is relatively low, but this product Water absorption and swelling, high energy consumption, color steel plate, high cost, and rain noise is loud, rust life is short, polystyrene foam heat insulation, high cost, low compressive strength, polystyrene foam board and its upper and lower The cement concre...

AI Technical Summary

Problems solved by technology

[0002] At present, the thermal insulation materials used in the market mainly include perlite blocks, color steel plates, polystyrene foam boards, etc. These various products have certain technical problems. The cost of perlite block products is relatively low, but this product Water absorption and swelling, high energy consumption, color steel plate, high cost, and rain noise is loud, rust life is short, polystyrene foam heat insulation, high cost, low compressive strength, polystyrene foam board and its upper and lower The cement concrete layer is not bonded, and the service life is short. Through the patent search of the existing technology, it is found that the invention patent number (02138293.X) records a polystyrene foam concrete insulation material and its preparation method, in which waste polyethylene foam is mainly used Polystyrene foam concrete insulation material made by combining cement and foaming agent and its preparation method, the composition and content of the insulation material are: 15mm-30mm polystyrene particles: 4% to 10%, cement: 81 % to 91%, foaming agent: 0.4% to 1%, water: 4% to 8%, it uses the foaming agent to make the cement porosity, and it is well combined with polystyrene particles without affecting the properties of the cement. Formed together, the above-mentioned technology has the following technical shortcomings. The use of 15mm-30mm polystyrene particles is relatively large, and the cement and polystyrene particles cannot be well combined, which reduces the insulation effect. The foam used is not suitable for large Large-scale construction application, high cost