SU1754691A1 - Stock for manufacturing heat insulating slabs for ceilings and partitions - Google Patents

Abstract

Usage: in the building materials industry. Essence: the raw mix for the manufacture of heat insulating partitions and hot plates contains, in May,%: semi-aquatic gypsum 42-46; plug of a fraction of 10-30 mm 30.3-37.35; aliphatic epoxy resin 0.5-0.7; polyethylene polyamine 0.05-0.07; catapin bactericide 0.1-0.3; water the rest. The raw mix is prepared by mixing gypsum, a stopper with mixing water, into which the previously mentioned additives are introduced. The water absorption is 27%, the thermal conductivity coefficient is 0.07 W / m & C, the average density is 330 kg / m3.1 tab.

Description

to

WITH

The invention relates to the manufacture of building materials, in particular to the manufacture of heat insulating plates intended for the installation of partitions and ceilings in buildings for various purposes.

The known raw material mixture for the manufacture of heat insulating material containing cement, clay and water.

However, this mixture does not provide products with proper fungicidal properties and is of relatively high cost.

Closest to the offer is a raw mix, which includes gypsum, wood filler, flax fire and water in the following ratio of components, mol.%:

Gypsum42-46

Woody

placeholder25-27

Flax Bonfire 4-8

WaterEverything

However, the known mixture has a high water absorption and low thermal conductivity.

The purpose of the invention is to reduce the coefficient of thermal conductivity, water absorption, reducing the average density.

The goal is achieved by the fact that the raw mix for the manufacture of insulating walls of partitions and ceilings, including semi-aquatic gypsum, organic aggregate and water, contains as the organic aggregates a plug of a fraction of 10-30 mm and additionally aliphatic epoxy resin, polyethylene polymer and catapine-bactericide for the following the ratio of components, wt.%:

Semi-aquatic gypsum 38-42

Cork faction

10-30 mm30.3-37.35

Aliphatic

epoxy resin 0,5-0,7

Polyethylenepolyamine 0.05-0.07

g

ON CHE

Catapin bactericide 0.1-0.3

WaterEverything

For experimental verification of the proposed raw mix, 3 compositions are prepared.

EXAMPLE L A raw material mixture is prepared from semi-aqueous gypsum, a plug of a fraction of 10-30 mm and a complex organ-additive consisting of epoxy resin DEG-1, polyethylene polyamine and catapin-bactericide.

The additive is introduced into the feed mixture with mixing water. The withdrawn quantities of gypsum, plugs, organo-additives, and water are introduced into the forced-acting mixture and mixed for 3-5 minutes. Samples of 40x40x160 mm in size and prisms of 100x100x400 mm in size, which are molded in 8-10 hours, and dried to a residual moisture content of 2%, are made of plastic mass by means of plastic molding.

After drying, the samples are subjected to tests according to standard methods. The composition of the raw mix, wt.%: Gypsum 38

Cork faction

10-30 mm37.35

Deg-10,5 pitch

Polyethylenepolyamine t0,05

Catapin-bactericide 0.1

Water24

Conducted tests on the physicomechanical characteristics showed that gypsum products have a water absorption of 27 wt.%, A thermal conductivity coefficient of about 08 W / m ° C and bioresistance of 0 points.

EXAMPLE 2 A raw mix is prepared as in Example 1.

The composition of the raw mix, wt.%:

Gypsum40

Cork faction

10-30 mm39.14

Deg-10,6 pitch

Polyethylenepolyamine0.06

Catapin bactericide

Water20

Samples from this raw mixture have a water absorption of 27 wt.%, Coeff. thermal conductivity of 0.07 W / m ° C and bioresistance O points

EXAMPLE 3 A raw mix is prepared analogously to Example 1.

The composition of the raw mix, wt.% Gypsum42

Cork30,3

Deg-10,7 pitch

Polyethylenepolyamine0,07

Catapin-bactericide0,3

Water26

Samples from this raw mixture have a water absorption of 29% by weight, a thermal conductivity coefficient of 0.1 W / m ° C and a biostability equal to 0 points.

The physicomechanical indicators of the raw material mixture for the manufacture of heat insulating plates are presented in the table.

As can be seen from the table, the proposed raw material mixture for the manufacture of heat insulating plates has improved physical and mechanical properties due to the introduction of cork waste and complex organo-additives.

The use of the proposed plates allows the use of waste material for burning - waste cork, which leads to a significant reduction in the cost of the raw mix.

Claims (1)

The raw material mixture for the manufacture of insulating walls of partitions and ceilings, including semi-aquatic gypsum, organic aggregate and water, characterized in that, in order to reduce the coefficient of thermal conductivity, water absorption, reduce the average density, it contains a plug of fraction 10- 30 mm and additionally aliphatic epoxy, Polyethylenepolyamine and catapine-bactericide in the following ratio of components, wt.%: Semi-aquatic gypsum 38-42 Cork fraction 10-30 MI t 30.3-37.3 Aliphatic epoxy resin 0.5-0.7 Polyethylenepolyamine 0.05-0.07 Catapin bactericide 0.1-0.3 WaterEverything,