Inorganic vitrified micro bubble external heat-insulating system for outer wall

Abstract

The invention relates to an inorganic vitrified micro bubble external heat-insulating system for an outer wall, which comprises an interface layer, an inorganic vitrified micro bubble heat-insulating layer, a crack-resisting mortar covering surface layer and a finishing coat. Inorganic heat-insulating mortar for preparing the inorganic vitrified micro bubble heat-insulating layer is formed by vitrified micro bubbles and powder according to the weight ratio of (0.6-0.8):1; the powder contains 200-300 parts of cement, 200-250 parts of fly ash, 8-10 parts of emulsion powder, 0.8-1.6 parts of polypropylene fiber, 60-100 parts of calcium hydroxide, 2-6 parts of wood fiber, 2-4 parts of water repellent, 6-8 parts of HPMC (Hydroxy-Propyl Methyl Cellulose), 2-5 parts of modified polyethylene glycol oxide and 0.4-0.6 part of bentonite. Various performance indexes of the heat-insulating mortar disclosed by the invention, such as material density, heat conductivity coefficient, heat storage coefficient, the shrinking percentage, the strength and the like, are superior to those of general vitrified micro bubble heat-insulating mortar; and the inorganic vitrified micro bubble external heat-insulating system has greater advantages in the heat storage coefficient, compressive strength and the like and can be used for well solving the problems of heat insulation, weather resistance and durability of the heat-insulating system.

Description

technical field [0001] The invention relates to an external thermal insulation system for an exterior wall, in particular to an external thermal insulation system for an inorganic vitrified microbead external wall. Background technique [0002] Since the world energy crisis in the 1970s, all countries have attached great importance to the issue of energy conservation, thus a worldwide energy conservation movement has arisen. In the 21st century, the world's construction science and technology have advanced by leaps and bounds, housing construction has developed rapidly, and building energy consumption accounts for a large proportion of the total energy consumption of various countries, reaching about 30%. With the increasing shortage of energy and the continuous improvement of building energy-saving and environmental protection requirements, countries all over the world have paid full attention to building energy-saving technology. In terms of architectural design and const...

AI Technical Summary

Problems solved by technology

In this way, most of the heat insulation materials currently used still cannot meet the heat insulation requirements in summer, especially the heat insulation and thermal stability requirements in hot summer and cold winter regions and hot summer and warm winter regions.

[0009] (2) Weather resistance and durability issues

Many external thermal insulation systems have not yet passed the test of large-scale weather resistance tests

[0010] (3) Crack resistance problem

[0011] (4) There are still fire resistance problems for the external wall insulation system of organic materials

[0012] (5) In addition, the price of thermal insulation material system is relatively high, which affects the popularization and application of building energy conservation, etc.

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