Foam concrete material and preparation method thereof

Abstract

The invention relates to a foam concrete material and a preparation method thereof. The foam concrete material comprises solid components and foams, wherein the solid components in parts by weight comprise 40-60 parts of slurry, 25-50 parts of cement, 5-8 parts of slaked lime, 2-3 parts of gypsum, 0.5-1 part of fiber and 1-3 parts of early strength agent, the volume of the foams is 50-80 times the total volume of the solid components, and the foams are prepared by foaming a foamer water solution with a foamer and water in a mass ratio of 1 to 30. Compared with the prior art, the invention has the advantages that the foam concrete is prepared by utilizing waste slurry, thereby being favorable for environment protection and having excellent insulation performance; and a light heat insulation material with an excellent insulation effect can be prepared and directly applied to non-bearing structures needing the insulation effect, such as roofs, ground heating projects and cushion layers. The foam concrete provided by the invention can be directly poured on site and has no special maintenance conditions and construction process requirements.

Description

technical field [0001] The invention relates to a foam concrete in the technical field of construction engineering, in particular to a foam concrete prepared from waste mud and its application. Background technique [0002] Building energy saving has become a new subject of modern architecture. As the roof structure of the non-load-bearing parts of the building, floor heating projects and cushions, people tend to use a new type of foam concrete material. Foam concrete is a porous lightweight material made of cement or slurry made by adding mixed materials and water, and then mixed with foam made of foam agent, and then hardened. It has many advantages such as light weight, good thermal insulation performance, and simple manufacturing process. . In recent years, foam concrete has developed rapidly, and many patented products have appeared. For example, Chinese patent publication number: CN101973779A, patent name: a preparation process of a new type of foam concrete, the pa...

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Problems solved by technology

For example, Chinese patent publication number: CN101973779A, patent name: a preparation process of a new type of foam concrete, the patent uses cement, coal ash, ceramsite, reinforcing agent and foaming agent to produce an apparent density of 700-1200kg / m 3 The compressive strength of foam concrete reaches C10, but its thermal insulation performance is difficult to meet the needs of general roofing or floor heating projects.

Another example is the Chinese Patent Publication No.: CN102153363A, patent name: a kind of ultra-low density foam concrete and its preparation method. The patent proposes to adopt a chemical foaming method to add a foam stabilizer to the sulphoaluminate cement slurry and stir evenly , then add a chemical foaming agent and stir well before pouring into shape. The apparent density of the foamed concrete is 130-150kg / m3, the thermal conductivity is lower than 0.10W / mK, and the compressive strength reaches 0.1MPa, but its cost is relatively low. high