CS245155B1 - Hydroinsulation material - Google Patents

Abstract

The hydro-insulation material includes hard hydraulic connecting substances, fillers, modificators and liquid hydrophobic additives on the basis of synthetic and/or natural macro-molecular materials and water, where the hard part of the connecting hydraulic substances consist of weight part of cement and/or gypsum from 30.0 to 60.0; a filler - a quartz sand, basalt fibres, microasbestos, timber andesite, limestone, dolomite from 35.0 to 65.0; from 2.0 to 4.- modificators, which are derivatives of the cellulose, mainly hydroxyethylcellulose, methylcellulose, carboxymethylcellulose, methylhydroxipropylcellulose, acetylcellulose and alcalcellulose and/or acid casein; 0.5-3.0 siloxide and/or calcium stearate. Each 100-weight part of rigid substance contain between 10.0 to 60.0 weight part of liquid hydrophobic component consisting of water dispersion of at least one co-polymer forming at co-polymerization of the vinylchloride with vinylacetate, ethylacrylate, buthilakrilate, 2-ethylhexiacrylate, acryl acid, mono-N-butilmalleinate, N-butyl-malonate, malleinate anhydride or malleine acid, stirol and 1.3 butadien with content of between 50 to 90 weight part., primarily between 60 to 82 weight part of co-polymerized vinylchloride with a dry residue of between 30 to 52% weight parts.

Description

The present invention relates to a waterproofing material, respectively. waterproofing material based on technically and raw materials available solid and liquid starting components, ensuring perfect waterproofing properties with very good reproducibility and long life.

It is known that the earlier methods of waterproofing used a combination of insulating asphalt or tar boards with asphalt or tar coatings. More recent waterproofing methods use plastic foils instead of bitumen masses, mainly based on chlorosulfonated polyolefins, butyl rubber, polyisobutylene and the like. The disadvantage of these waterproofing apart from the considerable laboriousness of their production is the need for smooth base surfaces for their application and often require! leveling cement screed or screed.

In addition, even the actual waterproofing liners must generally be protected from damage by a protective cement screed or. priímurovkami. Starting point. smooth in the manner of waterproofing the surfaces of building materials by applying a latex layer together with water glass / USSR certificate 461 914 / further in the application of polymer cement solutions / USSR certificate 478 809 and 483 368) as well as solutions containing hydroxyalkyl acrylate or methacrylates and water-soluble compounds metals forming chelates with monomers and polymers and a liquid-soluble redox system / French. U.S. Pat. 2,321,463 /. It falls into sprayed concrete mixtures during construction of tunnels, shafts, etc. adds 5 wt.%, a dispersion consisting essentially of polyvinyl propionate and a bitumen emulsion with the addition of terpentine, xylene, paraffin oil and fatty acid ester / NSR pat. 2,256,056 /. Their disadvantage, however, is either a thin coating on concrete surfaces or a worse dispersion of polymeric and other organic additives in concrete.

Further progress is represented by waterproofing material and the method of its production according to MS. No. 209,997, however, the disadvantage is the lower stability of the hydrophobizing boats during longer storage. These other problems are solved technically by waterproofing material, resp. a waterproofing composition prepared according to the present invention.

The present invention is based on a solid hydraulic binder, filler, modifier and liquid hydrophobic additive based on synthetic and / or natural macromolecular materials and water, the solid part of the hydraulic binders being cement and / or gypsum in an amount of 30 to 60 parts by weight and fillers such as siliceous balls, basalt pulp, microazbestos, crushed andesite, limestone, dolomite, in an amount of 35 to 65 parts by weight, parts and modifiers consisting of 2 to 4 parts, cellulose derivative parts, preferably hydroxyethylcellulose, methylcellulose, carboxymethylcellulose, methylhydroxypropyl acetylcellulose and alkalicellulose and / or acid casein, further 0.5 to 3 parts by weight, parts of siloxide and / or calcium stearate and 100 parts by weight, all solids containing 10 to 60 parts by weight, parts of a liquid hydrophobising component consisting of an aqueous dispersion of at least one copolymer formed by the copolymerization of vinyl chloride with vinyl acetate, ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, acrylic acid, mono-n-butyl maleate, n-butyl maleate, maleic anhydride respectively. maleic acid, styrene and 1H-butadiene, containing 50 to 90% by weight, parts, preferably 60 to 82% by weight, of parts of copolymerized vinyl chloride having a dry matter content of 3 to 52% by weight.

The advantage of waterproofing material, respectively. According to the present invention, the raw material availability, long life, high corrosion resistance and very good waterproofing, strength and other physico-mechanical properties are provided.

Furthermore, easy transportability of all waterproofing components. material, their optimal composition, manifested by a positive synergism of properties, and last but not least, the possibility of using the application of waterproofing material at the same time for aesthetic treatment of waterproofed objects.

Suitable fillers are, in particular, siliceous sands, in particular due to their high strength, corrosion resistance and the ability to adhere to the components of the waterproofing material, granite, andesite, limestone, dolomite, barite and bentonite sands, aluminosilicate sands and ground ores.

Suitable synthetic inorganic materials are aluminates, phosphorous gypsum, slag, alumina, barium oxide, lead oxides and the like. Cellulose derivatives are alkyl hydroxycelluloses, such as hydroxyethylcellulose, methylcellulose, methylhydroxypropylcellulose, methylhydroxyethylcellulose, acetylcellulose, alkalicellulose and the like. The organic sulfo compounds are, in particular, alkylarylsulfoic acid and its salts, in particular dodecylbenzenesulfonic acid, sodium dodecylbenzenesulfonate, calcium dodecylbenzenesulfolane, sodium petrosulfonate, calcium petrosulfonate, lignosulfonic acids and their salts, naphthalenesulfonic acid derivatives and its salts, and its salts.

Suitable aqueous emulsions or dispersions of the macromolecular substance or, most commonly, mixtures of macromolecular substances are suitable homopolymers and copolymers, usually prepared by emulsion polymerization or copolymerization of acrylic and other monomers, optionally in a microsuspension manner.

According to the invention, these are homopolymers and copolymers containing monomers or comonomers containing carboxyl groups in macromolecules, which also include substances with ester groups.

These include vinyl acetate, vinyl propionate, vinyl stearate, maleic acid, maleic anhydride, monoalkyl maleate, dialkyl maleate, itaconic acid and its esters, acrylic acid and its alkyl and hydroxyalkyl esters, methacrylic acid and its alkyl and hydroxyalkyl esters, copolymers of vinyl acetate, butylacetate with ethylene ethylene. ethylhexyl acrylate, copolymers of acrylic acid and its alkyl esters with styrene, 1,3-butadiene, acrylonitrile. The carboxamide groups of the hoinopolymer and copolymer are mainly acrylamide and methacrylamide.

The production method according to the invention does not limit the further possibilities of formulating the waterproofing material, respectively. waterproofing material. In addition, the components of the waterproofing material or mass may be pigments, dyes and antioxidants.

violet details of the composition and preparation of the waterproofing material as well as other advantages are evident from the examples.

He did

The waterproofing material, whose solid, perfectly homogenized proportion comprises 51 wt. Parts of white cement (РС 400), 40 parts, parts of ground quartz sand of 0.02 to 0.1 mm grain and 4 parts, parts of micronized limestone, 0.5 parts, parts of calcium stearate, 2.5 parts, parts of acid casein, 0.1 parts by weight, parts by weight of sodium lignosulfonate, 0.4 parts by weight, parts by hexamethylenetetramine and 1.5 parts by weight, parts by micro-asbestos.

To 100 parts by weight, 24 parts by weight of water and 8 parts by weight of a concentrated dispersion of vinyl chloride-styrene-n-butyl acrylate ternary copolymer having a dry matter content of 51% by weight are added to the solids parts with vigorous stirring. The paste-like waterproofing material obtained is applied to a concrete substrate primed with an aqueous dispersion of vinyl chloride-styrene-n-butyl acrylate having a dry weight of 5% by weight, in two coats of 0.65-0.75 mm. After 24 hours, the concrete substrate has a water absorbency of 0% by weight according to CSN 73 2578, and a wet abrasion of 73 min.

Example 2

The waterproofing material, the solids of which were prepared by homogenizing 44, 14 µmol. parts of white cement (РС 400) and 50 parts by weight, parts of ground limestone grains of 0.01-0.5 mm, 3.0 parts by weight, parts of acid casein, 0.17 parts by weight, parts of hexamethylenetetramine, 0.20 parts by weight, parts of sodium naphthalenesulfonate, 0.03 parts by weight of calcium lignosulfonate and 2.0 parts by weight of siloxide.

To 100 wt.%, 25 wt. Parts of water and 5 wt. Part of a dispersion of vinyl chloride-styrene-n-butyl acrylate copolymer having a dry matter content of 50.5% by weight. The resulting paste-like waterproofing material is applied to a concrete substrate primed with a vinyl chloride-styrene-n-butyl acrylate dispersion having a dry weight of 10% by weight, twice with a thickness of 0.7 to 0.8 mm. After 24 hours, the concrete substrate is impermeable to water according to CSN 73 2578, has a water absorption of 0.0% by weight, and a wet abrasion of 69 min.

Example 3

The solid is prepared by homogenizing 51.0 wt. White cement parts (SPC 325) and 44.5 parts by weight, finely ground limestone parts, 2.5 parts by weight, casein acid parts, 0.5 parts by weight, calcium stearate parts and 1.5 parts by weight, micro-asbestos parts.

38 parts by weight of parts of the solids, parts of water-diluted vinyl chloride-styrene-butyl acrylate dispersion having a dry matter content of 10% by weight are added to 100 parts by weight. A paste-like waterproofing material is obtained, which is applied to a primed concrete substrate similar to that of Example 1. Water-impermeable waterproofing is also obtained. After 24 hours the water permeability according to ČSN 73 2578 is 0.0% by weight.

Example 4

The solids are prepared by homogenizing 51.0 wt. Parts of white cement (RС 400), 39.0 wt. Parts of ground andesite grain 0.05 to 0.5 mm, 2.5 parts, parts of acid casein, 1.0 parts, parts of hexamethylenetetramine, 2.5 parts, parts of calcium stearate, 2.0 parts, parts of urea, 1.5 parts and 0.5 parts by weight of sodium dodecylbenzenesulfonate and 0.05 parts by weight of sodium lignosulfonate.

To 100 parts by weight, 38 parts by weight of the water-dilute dispersion specified in Example 3 were added to the parts, and a similar waterproofing composition was obtained by a similar procedure. After 24 h the permeability is permissible. for water at a positive pressure of 1.5 MPa and 0.0 wt.

Example5

20 parts by weight of water and 5 parts by weight of a dispersion consisting of a mixture of two dispersions of vinyl chloride / vinyl acetate / ethacrylate terpolymers and styrene / butadiene / 2-ethylhexyl acrylate in a ratio of III are added to 100 parts by weight of the waterproofing material prepared according to Example 2. The prepared pasty mass is applied by double coating to a depth of 0.6 to 1 mm on the substrate, on which the penetration coating with a mixture of both dieses with water in a ratio of 1: 4 parts by weight of parts H 2 O was previously performed. According to ČSN 73 2578, the base concrete thus treated has a permeability. for water 0.0 wt%, and wet abrasion 7 3 min.

Example 6

Waterproofing material consisting of 50 wt. Parts of Portland cement (РС 325), 40 parts, parts of siliceous flake with grain up to 0.5 mm and 4. parts, parts of micronized limestone, 0.7 parts, parts of calcium stearate, 2.5 parts, parts of acid casein, 0, 1 wt. Parts of carboxymethylcellulose, 2.2 parts by weight, parts of calcium dodecylsulfonate and 0.5 parts by weight, parts of hexamethylenetetramine are perfectly homogenized.

К 100 wt. 24 parts by weight, parts by weight of water and 8 parts by weight are added successively to the parts of the solid. Part of the aqueous dispersion prepared free-radical copolymerization of a ternary copolymer of vinyl chloride-vinyl acetate-2-ethylhexyl acrylate having a solids content 5O _r 5 wt.% The prepared paste-like waterproofing material is applied to a depth of 0.5 to 0.8 mm on a substrate on which a primer has been previously applied with a dispersion of a ternary copolymer diluted in water in a ratio of 1: 4 by weight, parts H ₂ O. substrate according to CSN 73 2578 absorbency. water 0.0 mass, and wet abrasion 75 min.

Example 7

For 100 parts by weight of the solid waterproofing material prepared according to Example 6, 20 parts by weight of water and 5 parts by weight of the aqueous dispersion prepared by free-radical copolymerization of vinyl chloride-vinyl acetate-monobutyl maleate containing 2% by weight monobutyl maleate were added. The prepared mass is applied by spraying or spattering on a concrete base, on which a penetration coating with an aqueous dispersion of a ternary copolymer in a ratio of 1: 4 by weight, parts H ^O, has previously been carried out. After 24 hours, the water permeability according to CSN 73 2578 was 0.0 wt.

Example 8

For 20 parts by weight, parts by weight of water and 5 parts by weight, parts of the copolymer of the dispersion prepared by free-radical copolymerization of vinyl chloride-vinyl acetate-butyl acrylate and acrylic acid containing 32% by weight, copolymerized vinyl chloride of 35% by weight. 51 parts by weight, portions of Portland cement (РС 325), 40 parts by weight, quartz sand parts of continuous granulometry with a grain size of max. 0.4 mm, 3.5 parts by weight, casein parts, 1.5 parts by weight, calcium stearate parts and 4 parts by weight, parts of finely ground bentonite. The mixture, after homogenization and 20 minutes standing and re-mixed coating is applied twice to the thickness _T 0 5-2 mm on a concrete base on which the previously performed penetration of aqueous copolymer dispersion of vinyl acetate-vinyl chloride-acrylate-acid. % acrylic with dry matter 15% wt. After 24 hours according to CSN 73 2578 the treated substrate is impermeable to water with a wet abrasion of 71 min.

Example 9

Waterproofing material prepared by homogenizing 20.0 parts by weight, parts of slag-portland cement (SPC 325), 15 parts by weight, gypsum parts, 59.0 parts by weight of 0.05 to 0.5 mm calcium carbonate, 3.0 parts by weight, acid casein parts, 2 0 wt. Parts of siloxide and 1.0 wt. Parts of calcium stearate are homogeneously mixed with 30 wt. Parts of an aqueous dispersion of a vinyl chloride-vinyl acetate-butyl acrylate terpolymer having a concentration of 17 wt.%, A copolymer and sprayed to a thickness of 0.7 to 1 mm. to a concrete substrate, on which a penetration coating of the above terpolymer with water in a ratio of 1: 4 wt. H ^ O. The treated concrete substrate is impermeable to water at both positive and negative pressure of 1.5 MPa.

Claims (2)

Hydro-insulating material based on solid hydraulic binders, fillers, modifiers and liquid hydrophobizing additives based on synthetic and / or natural macromolecular materials and water, characterized in that the solids of the hydraulic binders comprise cement and / or gypsum in an amount of 30 to 60% by weight , parts and filler such as quartz sands, basalt pulp, micro-asbestos, crushed andesite, limestone, dolomite, in an amount of 35 to 65 parts by weight, parts and modifiers consisting of 2 to 4 parts by weight, parts of cellulose derivatives, preferably hydroxyethylcellulose , acetylcellulose and alkalicellulose and / or acid casein, further 0.5 to 3 wt. parts of siloxide and / or / calcium stearate and 100 wt. Parts of all solids comprise 10 to 60 parts by weight of a liquid hydrophobizing component consisting of an aqueous dispersion of at least one copolymer formed by copolymerizing vinyl chloride with vinyl acetate, ethyl acrylate, butyl acrylate, 2-ethylhexyl acrylate, acrylic acid, mono-n-butyl maleate. maleate, maleic anhydride, respectively. maleic acid, styrene and 1,3 butadiene, 8 containing 50 to 90% by weight, parts, preferably 60 to 82% by weight, of parts of copolymerized vinyl chloride having a dry matter content of 3 to 52% by weight; 2. Waterproofing material according to claim 1, characterized in that it contains in the form of a modifier 0.1 to 3.5 parts by weight, parts of hexamethylenetetramine and / or urea and 0.01 to 2 parts by weight, parts of aromatic or alkylaromatic sulfo acids having 1 to 12 atoms. of carbon in the alkyl.