UA82803C2 - production of plaster mix for low-conductivity coat of outer and interior walls - Google Patents

Abstract

The invention relates to the production of constructional materials, in particular to production of plaster mix for low-conductivity coat of outer and interior walls of building structures. A plaster mix based on cement contains expanded perlite, slaked lime, kaolin, microwollastonite, glass foam, methylcellulose, sodium oleate, zinc stearate, optibent, vinavil flux, plasticizer, elotex 511, foaming agent, technocel 150, opagel SMT, ufapore and diatomite. The composition provides improving parameters of low-conductivity coat.

Description

The invention relates to construction, for the manufacture of building materials, namely the manufacture of dry plaster mixture for heat-insulating coating of the external and internal walls of building structures.

Known composition of heat-insulating material (patent NVO Mo1692104, 1990) based on cement, which includes, by weight: cement 32.7-32.8 sand 47.86-52.80 plasticizer 0.34-038 liquid glass 0.33- 0.38 vinylacenate 0.33-0.38 water The rest.

The disadvantage of this solution is insufficient thermal conductivity, water absorption, adhesion, as well as insufficient environmental safety and increased labor costs, as well as insufficient vapor permeability.

The basis of the invention is the task of improving the thermal conductivity index, reducing the percentage of water absorption, increasing the strength of the material, improving the coefficient of adhesion (adhesion), increasing the environmental safety of using the mixture while reducing labor costs based on the proposed composition.

The task is solved by using the newly created composition of a multi-component heat-insulating plaster mixture for external and internal works based on cement, which additionally contains expanded perlite, slaked lime (powder), kaolin, microwoolsonite, foamed glass, methyl cellulose, sodium oleate, zinc stearate, optibent, sinyl flux, elotex 511, foaming agent, technotsil 150, opagel SMT, ufapor, diatomite, with the following ratio of components, mass.9o sand 5-30 expanded perlite 15-45 slaked lime (powder) 5-25 kaolin 5-15 microwoolstone 1-0 foamed glass 15-50 methyl cellulose 1-0 sodium oleate 1-5 zinc stearate 1-5 optibent 1-5 sinyl flux 1-5 plasticizer 1-5 elotex 511 10-40 foaming agent 1-5 technocil 150 1-5 opagel SMT 1-5 ufapor 2-10 diatomite 2-10 cement The rest.

The composition is well balanced, tested in practice.

An example of using the mixture: 5-6 liters of water were added to 1 bag (11.5 kg) in 2-3 doses. It was mixed with a hand mixer and the solution is ready for work. The main parameters of the mixture are given in Table 1

Tabli

The name of the indicator 7" The value of the indicator 1 control also and the strength of adhesion to the base. 08-12 05. - endurance in dry-lying conditions, (children V Not less than 00 shk "The limit of compressive strength, Ma, not 37-45 25 less and shi shi i i Tensile strength limit when applied, 20 1.2 I

MPa me tt day shi (Freeze resistance, Cycles, nemente 5330050 005 to

Water absorption coefficient, kg/m2 - Thd, 053505 0.5 and 000 and more -

Vapor resistance, mgumgod-Na, not menize | 0.043-0.05 o, and | and

Coefficient of thermal conductivity Bt/ mch | 0.06-0.09 ro

Her daughter is a ptttrennter tn ptn and ask them zitnlya nia anzhichya spllnlkcnilalydinntnia pllakkdinnymin ditok lita dlalytnyn

Covering the external facade of the building with the proposed composition of the heat-insulating plaster mixture with a layer of 2.5 cm due to the low thermal conductivity of 0.06-0.09Bt/mhS allows to replace masonry with two bricks in terms of heat-insulating properties, saving at the same time 30-40905 heat.

The structure of the mixture makes it possible to improve the vapor permeability index (the ability to pass oxygen molecules freely, but when in contact with water it prevents the penetration of HgO) up to 0.05 mg/mg-PA. The percentage of water absorption decreases to 395.

The ecological safety of the claimed composition is increased due to its inertness to the aggressive environment of acids and alkalis, and the composition is not susceptible to the penetration of fungal spores. The claimed composition has high fire resistance (class A-1).

This composition can be used for leveling and thermal insulation for all types of both internal and external walls, during the construction of new buildings and during the reconstruction of old ones. The composition, which has high plasticity and adhesion, can be applied to any surface, in particular rounded, arched, complex facades, which makes it possible to implement original architectural solutions.

Claims (1)

The composition of the heat-insulating plaster mixture, which contains cement, sand, a plasticizer, which is distinguished by the fact that it additionally contains expanded perlite, slaked lime in the form of powder, kaolin, microwollastonite, foamed glass, methyl cellulose, sodium oleate, zinc stearate, optibent, venovil flux, elotex 511, foaming agent, technotarget 150, opagel SMT, ufapor, diatomite with the following ratio of components, mass. 90: sand 5-30 expanded perlite 15-45 slaked lime 5-25 kaolin 5-15 microwoolstone 1-10 foamed glass 15-50 methylcellulose 1-10 sodium oleate 1-5 zinc stearate 1-5 optibent 1-5 venovil flux 1-5 plasticizer 1-5 elotex 511 10-40 foaming agent 1-5 technotsil 150 1-5 opagel SMT 1-5 ufapor 2-10 diatomite 2-10 cement rest.