Dry construction mix

FIELD: construction.

SUBSTANCE: dry construction mix includes a binder, a mineral filler and modifying additives and additionally contains ground baked ceramics at the following ratio of mixture components, wt %: binder 30-45, ground baked ceramics 10-30, cellulose ether 0.05-0.1, redispersed powder 0.55-1.0, air entering agent up to 0.2, setting accelerator up to 1.0, water-repellent agent 0.4-0.8, antibacterial additive up to 0.2, pigment up to 5.0, mineral filler - balance.

EFFECT: reduced tear, expanded raw base, improvement environment and reduced prime cost of the produced dry mix due to usage of baked ceramics.

5 cl

 

The invention relates to the field of building materials, in particular for dry construction mixtures, and can be used in industrial and civil construction as a rubbing mixture for filling gaps between the edges facing ceramic or glass tiles for floors and walls to concrete, brick, sand and cement and other types of surface inside and outside of them.

Known dry construction mixture including Portland cement, filler and extender additive of the following composition, wt. %: volcanic rock 40-60, gypsum 18-28, dolomite 2-7, plasticizer -3, fume - rest, in the following ratio of components: 10-25 Portland cement, aggregate 50-80 expanding additive 10-25 (see patent RU 2079462, CL SW 28/00, publ. 20.05.1997).

Closest to the invention is a dry mortar containing binder, filler and modifier additive consisting of microsilica, plasticizer, dolomite or limestone flour, and water-soluble cellulose ether, redispersion powder in the form of copolymers of polyvinyl acetate or acrylic in the following ratio of components of the modifying additive, wt. %: the fume - 0,1-30,0, plasticizer - 0,5-3,0, dolomite or limestone flour - 40-92,0, water-soluble cellulose ether - 0,1-3,0, redispersion powder in view of the copolymers of polyvinyl acetate or acrylate - 0,3-24,0, and the filler comprises, by weight. %: silica sand 99,9-85,0 with fineness modulus MCR is not more than 1.5 and powdered quartz 0,10-15,0, in the following ratio of components of the mixture, wt. %: binder - 25-36, filler - 55-74, modified additive - 1,0 - 10,0 (see patent RU 2204540, CL SW 28/00, publ. 20.05.2003).

Overall the main disadvantage of the known mixtures is their unsuitability for use as a rubbing mixture.

Object of the invention is the expansion of raw materials. The technical result consists in making use of the invention as a rubbing mixture while reducing the abrasion of mortar and its cost, improving the environment through recycling and the use of marriage in the production of ceramic products.

The problem is solved and the technical result is achieved by the fact that dry construction mixture containing the binder, mineral filler, and modifying additives, further comprises a ground fired ceramics, in the following ratio of components of the mixture, wt. %: astringent 30-45, ground sintered ceramics 10-30, cellulose ether 0.05-0.1, redispersible powder 0.55-1.0, air-entraining admixture to 0.2, the accelerator setting to 1.0, water-repelling additive 0.4-0.8, anti-bacterial additive to 0.2, the pigment prior to 5.0, mineral filler - OST the aspects. As ground sintered ceramics can be used and/or ground ceramic, ceramic tile, ceramic tiles, faience, porcelain. The size fractions of crushed sintered ceramics is preferably from 0.1 to 1 mm as a binder can be used Portland cement. As the mineral filler is preferably used ground marble.

In existing industrial production of ceramic articles: of porcelain tiles, ceramic tiles, ceramic tiles, sanitary products made of pottery and porcelain, and others, in the process of creating high quality products that meet their technical specifications Standards and other normative documents, forms part of the product, which in its technical characteristics comply with these regulations, but in appearance and size does not match the commodity form (marriage). This part of the product may have chips, cracks, roughness on the surface, it is not accurate dimensions, etc. This part of the production because of the loss of the commodity form is not used, although it is a high quality product.

The invention is directed to the creation of dry construction mixes, which are used sintered ceramic goods (for example, ceramic granite, slabs, the second tile, ceramic tiles, faience, porcelain, and other), which is the unconditioned output of the respective industries. We offer dry mortar contains a binder, mineral filler, modifying additives and ground sintered ceramic goods (for example, ceramic granite, ceramic tile, ceramic tiles, faience, porcelain, and other). Experimentally it was found that the best consumer qualities has a composition in the following ratio, wt. %:

Astringent30-45
Ground sintered ceramics10-30
The cellulose ether0.05-0.1
Redispersible powder0.55-1.0
Air-entraining admixtureto 0.2
The accelerator settingto 1.0
Water-repelling additive0.4-0.8
Antibacterial additiveto 0.2
Pigmentto 5.0
Mineral fillerrest

For this substandard above sintered ceramic products crushed, classify and use fractions from 0.1 to 1.0 mm were obtained ground sintered ceramics has increased strength.

As mineral filler is used, for example, ground marble, as a binder is Portland cement, and as modifying additives - redispersible powder to give a mixture of high adhesive properties, the cellulose ether, which helps to increase water-holding capacity, air entraining additive (for example, Elotex), accelerator setting (e.g., formate, calcium), gidrofobiziruyuschey additive (e.g., Seal 80 Elotex), antibacterial additive (for example, Acticide SR) and the pigment that gives the desired color trowel mixture. Can be used and other additives to impart additional properties to the resulting mixture.

The mortar mixture is prepared as follows. In a convenient pour water capacity and with constant stirring pour the dry mortar mixture to a working consistency, can withstand a few minutes, then into the cracks between the tiles is covered with a layer of the mixture and trimmed flush with the tile surface with a spatula or other tool. The solution status is made for about 2 hours.

Comparative tests of the proposed mix and prototype showed that reduced abrasion mortar due to the increased stability of the used ground fired ceramics (strength on a scale of MOSS in 1.5-2 times greater than the strength of ground marble), expanding the raw material base (you can use sintered ceramics up to 30%), improves the environment and reduces the cost (up to 10%) of the obtained dry mixture through the use of fired ceramics (marriage in the production of ceramic products).

1. Dry construction mixture comprising a binder, mineral filler, modifying additives, characterized in that it further comprises a ground fired ceramics in the following ratio of components of the mixture, wt.%:

Astringent30-45
Ground sintered ceramics10-30
The cellulose ether0.05-0.1
Redispersible powder0.55-1.0
Air-entraining admixtureto 0.2
The accelerator setting to 1.0
Water-repelling additive0.4-0.8
Antibacterial additiveto 0.2
Pigmentto 5.0
Mineral fillerrest

2. Dry mortar under item 1, characterized in that as a ground fired ceramic use and/or ground ceramic, ceramic tile, ceramic tiles, faience, porcelain.

3. Dry mortar under item 1, characterized in that size fraction of crushed sintered ceramics ranges from 0.1 to 1 mm.

4. Dry mortar under item 1, characterized in that the binder of Portland cement.

5. Dry mortar under item 1, characterized in that the mineral filler used ground marble.



 

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