Waste brick tile/straw foam concrete and preparation method thereof

Abstract

The invention which provides waste brick tile / straw foam concrete and a preparation method thereof relates to a lightweight building material. The foam concrete is a porous material obtained by mixing more than 90% of a main material comprising industrial and agricultural wastes of waste brick tiles, slag, straws and the like, an additive, a foaming agent and water according to a ratio, stirring,cast-molding and maintaining. The foam concrete which has the functions of light weight, low heat conduction coefficient, heat insulation, sound insulation and fire resistance, water resistance, freezing resistance, cracking resistance, shock resistance and the like and has the advantages of low production cost, simple manufacturing process, realization of onsite casting of prefabricated products, use convenience and safety, changing of wastes into valuables, reaching of energy-saving low-carbon effects, reduction of pollution of the wastes to the environment, ecological environment protection, and nation and civilian benefiting, contributes to the creation of the saving and low carbon society in China.

Description

technical field [0001] The invention relates to a lightweight building material, in particular to waste brick tile / straw foam concrete and a preparation method thereof. Applicable to the walls and roofs of buildings. Background technique [0002] Since my country's reform and opening up, the national economy has grown rapidly, and "scientific and technological innovation, independent innovation" has become the mainstream of my country's current industrial development. my country's industry is gradually developing in the direction of conservation, energy saving, emission reduction, and low carbon. With the implementation of my country's wall material reform and building energy-saving policies, modern buildings require the use of new building energy-saving materials with properties such as energy saving, heat preservation, light weight, fire resistance, and waste utilization. A multi-functional material with properties such as heat insulation, light weight, and fire resistanc...

AI Technical Summary

Problems solved by technology

Existing foam concrete mainly has the following deficiencies: (1) consumes a lot of natural resources, such as Portland cement or oxychloride cement, sand, stone powder, etc. consume a large amount of natural resources; (2) the cost is high, and the used glue for preparing foam concrete The cement material is general Portland cement or magnesium oxychloride cement, and its price is also higher; (3) The thermal conductivity is higher, generally 300-500kg / m 3 The thermal conductivity of foamed concrete is 0.08-0.186w / (m K), and the thermal insulation performance is poor; (4) the strength of foamed concrete is not high, 300-500kg / m 3 It is difficult for the foamed concrete to meet the strength requirements required for building energy-saving materials

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