RU2479527C1 - Decorative plaster - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: invention relates to plaster compositions used for decorative and art works. The decorative plaster contains the following, wt %: lime paste 15.0-20.0; quartz sand ground and passed through sieve No.008 53.0-61.5; pigment 1.0-10.0; portland cement 15.0-20.0; gypsum 1.0-1.5; aluminium powder 1.0-1.5, water at temperature of 70-90°C, with water-solids ratio of 1.2-1.7.

EFFECT: improved heat insulation properties of the plaster.

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Description

The invention relates to compositions of plasters used for decorative and artistic works.

Known plaster containing lime dough, quartz sand, pigment [1].

The objective of the invention is to increase the insulating properties of the plaster.

The technical result is achieved by the fact that the decorative plaster with the introduction of water-curing liquid after hardening, containing lime paste, quartz sand, pigment, additionally includes Portland cement, gypsum, aluminum powder in the following ratio, wt.%: Lime paste 15.0-20 0; crushed and passed through the grid No. 008 quartz sand 53.0-61.5; pigment 1.0-10.0; Portland cement 15.0-20.0; gypsum 1.0-1.5; aluminum powder 1.0-1.5, water with a temperature of 70-90 ° C with a water-solid ratio of 1.2-1.7.

The table shows the composition of the plaster.

Table Components Compositions, wt.% one 2 3 lime dough 15.0 17.5 20,0 quartz sand 53.0 61.5 54.5 pigment: - ocher 10.0 - cobalt oxide 1,0 - meerk 7.5 Portland cement M 400 20,0 17.5 15.0 Gypsum (G 5) 1,0 1.25 1,5 aluminum powder 1,0 1.25 1,5 water solid ratio (W / T) 1.7 1,5 1,2

The components are dosed in the required amounts. Quartz sand is ground, passed through a mesh 008, mixed with lime dough, gypsum, Portland cement and pigment. Water heated to a temperature of 70-90 ° C is added to the mixture of dry components and mixed again. The prepared plaster for 5-15 minutes after preparation is applied to the surface, for example, walls, and left to harden. On hardened plaster is applied (sprayed) hydrophobizing liquid (GKZH-10, GKZH-11, GKZH-94). Plaster has improved thermal insulation properties and original appearance. The compressive strength of the plaster at the age of 28 days is 1.5-2 MPa.

Information sources

1. Alexandrovsky A.V., Popov K.N. Materials for decorative plastering, tiling and mosaic work. - M .: Higher school, 1986. - S.146-147.

Claims (1)

Decorative plaster with the introduction of a water-repellent fluid after hardening, containing lime dough, quartz sand, pigment, water, characterized in that it contains crushed and passed through mesh No. 008 quartz sand and additionally includes Portland cement, gypsum, aluminum powder in the following ratio of components , wt.%:
lime dough 15.0-20.0 ground and skipped through grid No. 008 quartz sand 53.0-61.5 pigment 1.0-10.0 Portland cement 15.0-20.0 gypsum 1.0-1.5 aluminum powder 1.0-1.5 water with a temperature of 70-80 ° C at a water-solid ratio 1.2-1.7