CS232007B1 - Cement-bonded insulating material - Google Patents

Abstract

Riashi invented a new heat-insulating material that consists of a combination of perlite, wood and cement. Wood material can be in the form of wool, chips or fibers. Heat- and sound-insulating material according to the invention, which is made of different proportions of perlite, wood material with cement and different volumetric weights of these basic raw materials. Perlite can replace 10 to 70% of the wood. The team may have obtained a heat-insulating material with a low bulk density and more favorable properties.

Description

The invention provides a cement-bonded insulating material. It is a new thermal and acoustic insulation material consisting of a combination of perlite, wood and cement. The wood mass may be in the form of wool, chips or fibers.

Insulation materials made on the basis of cement and suitable treated wood mass are generally known. Wood wool or wood chip and cement that have been produced so far contain large amounts of organic material - wood mass, are not resistant to fire, have a high bulk density and thus higher thermal conductivity, and at low bulk density have high compressibility and low strength. Materials made of perlite and cement - perlitbeton - at higher bulk density have high thermal conductivity and at lower bulk density they are brittle, friable and have low compression strength.

The above-mentioned deficiencies are eliminated or significantly improved by the new type of heat-insulating material according to the invention, which is made of different ratios of perlite, wood mass and cement. 10 to 70% of wood mass can be replaced by pellit. In this way, it is possible to obtain a thermally insulating material of lower bulk density with more advantageous thermo-insulating materials and, in particular, physical-mechanical properties.

Perlite in a heat insulating material increases fire resistance, increases resistance to microorganisms and reduces bulk density. Wood material in the form of wool, chips or fibers serves as a reinforcement of this material, thereby increasing the compressive strength.

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A further advantage of the novel heat-insulating material according to the invention is that it can be produced on the same machinery as that made from wood wool and cement or from wood chips and cement.

An example of an insulating material according to the invention is a mass produced by mixing 2.4 kg of perlite (bulk density 90 kg / m),

2.3. kg of wood wool, 9.0 kg of cement (PC-400) and the corresponding amount of water. The heat insulating material produced after drying has a bulk density of 318 kg / m, a compressibility of 10.2% and a thermal conductivity of 0.0611 Wm · k * ¹ .

The products according to the invention are applicable for the thermal or acoustic insulation of walls, roofs and other parts of buildings in the building industry, as well as of finished products in the production of building components.

Claims (1)

OBJECT OF THE INVENTION 232 007 Cement-bonded insulating material, characterized in that it comprises a combination of perlite 10% to 70% by weight and 30 to 90% wooden mass, cement and water, wherein the wood mass may be in the form of wool, chips or fibers.