High-strength high-heat-insulation inorganic heat-preservation decorative external wall face brick containing nano materials

Abstract

The invention belongs to the field of building materials, in particular to nano material applications to a building outer wall heat-preservation system, and provides a high-strength high-heat-insulation inorganic heat-preservation decorative external wall face brick containing nano materials. Base coating, floating coating and decorative surface coating are performed on an inorganic light material base heat-preservation layer added with nano particles to form the face brick. By the aid of the nano particles added to a formula of the base heat-preservation layer, compressive strength, tensile strength and bonding strength of the base heat-preservation layer can be improved. A preparation method of the face brick includes evenly mixing the nano materials with the particle diameter at nanoscale, adding the nano materials to a mixed system of concrete, auxiliary solidifying materials, polymer binders, inorganic light heat-preservation materials, fibers and water and forming the mixed system through compression; after a cross-linking process of organic polymer materials and a hydration and drying process of the concrete, performing the base coating, the floating coating and the decorative surface coating on the inorganic light material base heat-preservation layer to form the inorganic heat-preservation decorative face brick. The outer wall heat-preservation brick prepared by the method is excellent in fireproof performance, high in pressure-resistance strength, tension-resistance strength and bonding strength and good in heat-preservation effects; the surface of the brick can be imitation metal, imitation stone and imitation timber; and decoration effects are great.

Description

technical field [0001] The technology belongs to the field of building materials, in particular to the application of nanometer materials in building exterior wall insulation systems. Background technique [0002] The development of energy-saving buildings is an important way to solve resource and energy problems. Taking China as an example, there are 44 billion square meters of existing buildings in China, and energy consumption is generally high. Building energy consumption generally accounts for 30% of the total energy consumption of the society, plus the consumption of the production process of building materials, the proportion of the total energy consumption of the society reaches 46% to 47%. Among them, the heating energy consumption per unit area of ​​buildings in the northern region is 1.5 to 2 times higher than that of European countries with similar climate conditions. Among the nearly 2 billion square meters of completed area each year, only 50 to 60 million sq...

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Problems solved by technology

However, these materials are porous and have low strength. With the current production process, the strength of the external wall insulation board / brick made of these materials is correspondingly low, which can neither meet the engineering needs, but also easily cause safety hazards. In order to improve its strength, it is necessary to Adding excessive cementitious materials and auxiliary cementitious materials will greatly increase its thermal conductivity

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