Thermal insulation plaster bonding agent

Abstract

A novel multifunctional heat preserving and insulating plaster adhesive has the components with the following weight content: cement 20-40%, silicon-aluminium glass hollow sphere material 15-35%, grinded high-calcium flyash 15-35%, water reducing agent 0.5-1.2%, air-entrainer 0.005-0.05%, modifier 1-5%, fiber 0.1-5%, and water-loss reducer 0.5-2%. In the adhesive the cement is common silicate 42.5 grade cement; the silicon-aluminum glass hollow sphere material has specific surface area 400-15000m<2>/kg, the sphere grain diameter is 0.5 mu m-60 mu m, and the content of silicon oxide is above 50%; the grained high-calcium flyash is obtained by grinding the common high-calcium flyash with the polarization grinder for 30min, the CaO content is above 18% and the fineness degree is 4000-6000m<2>/kg; the water reducing agent is alkali lignin water reducing agent; the fiber is the combination of one or a plurality of fibers in modified polypropylene fiber, alkali-resistant glass fiber, nylon fiber, animal and vegetable fibers; the air-entrainer is the colophony pyrolytic polymer series air-entrainer; and the modifier is cellulose or the derivative of the cellulose. The adhesion promoter is sodium group or potassium-group alta-mud.

Description

1. Technical field: [0001] The invention belongs to building materials, and in particular relates to a thermal insulation mortar binder. 2. Background technology: [0002] With the development of my country's building energy-saving work and the improvement of living standards, the requirements for the lightness and thermal insulation performance of wall materials are getting higher and higher, so there have been wall insulation materials filled with minerals such as perlite and gypsum. ; There are a large number of harmful substances such as asbestos and other minerals in the existing insulation material formula, and the overall performance of the material such as heat insulation, anti-shrinkage, and impermeability is poor, and the water absorption is large; the traditional process has high transportation costs, short storage periods, Technical and economic problems such as inaccurate on-site ingredient measurement and inconvenient construction. [0003] There have been a lot...

AI Technical Summary

Problems solved by technology

[0006] The existing thermal insulation mortar binder is mainly composed of cement, fly ash or other silicon, aluminum, calcium cementing material systems with similar functions, but the existing systems mainly have the following problems: the amount of cementing materials is large On the one hand, the cost of the material system itself is high, and at the same time, due to the increase in the density of the thermal insulation material system, the weight of the wall is too high, which not only causes the wall to fall off easily, but also significantly reduces its thermal insulation capacity