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Method for semi-dry pressing of gypsum Swollen perlite is used, which is first saturated with water, water that is not retained by a swollen perlite granule is filtered, the water-saturated perlite is mixed with gypsum, the produced mix is supplied into a die mould for further pressing, and pressed at 10 MPa at least. |
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Raw mix to make shell of coarse filler used to decorate flower gardens and flowerbeds Raw mix to make a shell of a coarse filler used to decorate flower gardens and flowerbeds contains the following components, wt %: liquid glass with density of 1300-1500 kg/m3 30-35, urea 5-15, water 30-35, mineral filler 20-30. |
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Invention may be used in construction to fill cavities in construction structures of buildings and works to limit flame spreading and also for heat and sound insulation. In the method for sealing of cavities in construction structures of buildings and works, including preparation and supply of a sealing mix into cavities, containing liquid glass and silicon of 100 mcm fraction, the specified supply is carried out in portions, besides, activation is carried out by portions of the prepared sealing mix maintained until start of reaction between liquid glass and silicon, using for activation in each portion the additive from the previous portion in the amount that regulates time of its hardening and making 5-40%. |
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Method to manufacture construction materials based on magnesia binder Method to manufacture construction materials based on a magnesia binder includes activation of a magnesia binder, modified filler, plasticiser, pigment by the method of mechanical-chemical modification in solid state under condition of joint impact of pressure and shift deformations. Aqueous solution of magnesium chloride (aqueous solution of bischofite) and filler are added to the activated mix. The magnesia binder is caustic magnesite with addition of electric furnace magnesite. The modified filler in the raw mix is a complex silica-alumina filler including SiO2, Al2O3, CaO, MgO, Fe2O3, FeO, SO3 in different combinations and ratios, modified in solid state with oxide or salt of transition metal by the method of mechanical-chemical modification under conditions of joint impact of pressure and shift deformations, and also the raw mix may additionally contain mica and fibres (natural, polymer, metal, glass). The mix is hardened at the temperature of 10-90°C for 1÷14 h, and macromolecular structures of finished goods are exposed to diffusion process of introduction of oil/water emulsion in presence of a surfactant. |
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Concrete mix contains, wt %: Portland cement - 25-28, crushed stone - 20-22, sand - 18-20, molybdenum-containing wastes - 8-10, distiller's dried grain with solubles - 20-29. |
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Raw mix for making concrete includes, wt %: Portland cement 24-26; granite siftings passing through sieve No. 5 - 45.4-51.5; superplasticiser S-3 - 0.5-0.6; steel chips, produced as a result of processing of steel blanks on turning machines 4-6. |
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Method of producing heat-insulating structural material Invention relates to production of heat-insulating structural materials. The method of producing heat-insulating structural materials includes crushing silicate lumps to specific surface area of 2500 cm2/g, mixed with a modifier, a reinforcement additive in form of portland cement, a foaming agent in form of hydrogen peroxide and hardening water, pouring into an article mould and carrying out heat treatment of the article with microwave currents for 15 minutes at temperature of 300°C, wherein the modifier used is superplasticiser S-3, and an additional reinforcement additive used is basalt microfibre with the following ratio of components, wt %: said silicate lumps 62-64, superplasticiser S-3 0.01-0.012, portland cement 10-12, basalt microfibre 0.04-0.1, hydrogen peroxide 0.5-0.7, hardening water 25. |
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Composition for producing heat-resistant composites Composition for producing heat-resistant concrete contains spent catalyst IM-2201, crushed rock, sand and H3PO4, and is characterised by that it further contains saline aluminium dross burnt at temperature of 1000°C, containing the following, wt %: SiO2 - 4.75; Al2O3 - 77.3; Fe2O3 - 1.6; CaO - 2.57; MgO - 7.5; R2O - 5.13, with the following ratio of components, wt %: spent catalyst IM-2201 10-15, crushed rock 33-40, sand 10-13, H3PO4 10-15, said saline slag 24-30. |
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Raw mixture for production of gypsum brick Raw mixture for production of gypsum brick includes, pts. wt.: phosphogypsum astringent 39.5-44; water 25-30; quartz sand 5-10; fly ash 20-25; asbestos fibres 0.5-1 cut into lengths of 5-10 mm. |
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Raw mixture for production of fine grained concrete Raw mixture for production of fine grained concrete contains, pts. wt.: portland cement 26.0-28.0; ash from combustion of brown or black coal 71.1-73.1; capron fibre sliced into pieces of 25-50 mm 0.2-0.4; sodium methyl siliconate or sodium ethyl siliconate 0.5-0.7, at water-cement ratio of 0.45-0.5. |
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Fast-acting concrete mixture for repairing building constructions Mixture contains the following components, wt %: general construction Portland cement CEM I 42.5 32.5-34.5, alumina cement 8.1-8.6, modified by the form fractionated and dressed wastes of mining enterprise production 41.0-42.4, a plasticising additive based on polycarboxylate ethers 0.20-0.25, an active mineral additive microsilica 4.0-4.5, a polypropylene biocomponent fibre 0.03-0.05, water - the remaining part. |
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Concrete mixture comprises, pts. wt. artificial cement 23.0-25.0, fraction expanded clay 10-20 mm 20.0-26.0, keramsite sand 20.0-24.0, fine quartz sand 5.6-7.4, asbestos fibre sliced into segments of 5-25 mm 0.2-0.3, sodium ethyl siliconate 0.2-0.3, water 23.0-25.0. |
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Concrete mixture comprises, pts. wt.: artificial cement 25.0-27.0; ash and slag filler 53.4-57.8; indicated crumb of polyethylene foam 0.15-0.25; water 16.0-18.0; capron fibre cut into lengths of 5-15 mm 0.15-0.25; superplasticising admixture C-3 0.8-1.2, besides ash and slag filler is characterised by the following grain size composition, pts. wt.: particles larger than 0.63 mm - 0.2; larger than 0.315 mm, but smaller than 0.63 mm - 4.8; larger than 0.14 mm, but smaller than 0.315 mm - 62; smaller than 0.14 mm - 33. |
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Invention relates to building materials and can be used in applying fire-retardant coatings on building structures. The fire-retardant composition in form of a water-tempered dry mixture for applying coatings is characterised by that it contains, wt %: portland cement 20.0-60.0, expanded vermiculite 10.0-40.0, chrysotile asbestos 5.0-25.0, chamotte 5.0-25.0, expanded pearlite 10.0-30.0, polyfunctional concrete modifier 0.1-1.0, fine water-soluble adhesive 2.0-8.0 and a water-retaining additive 0.1-3.0. |
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Composition for sulphur concretes, which contains sulphur gas and fuel oil; in addition, it contains waste and recovered proppant in the form of granulated aluminosilicate granules with the size of 0.2-2 mm and a polymer additive - crushed secondary wastes of polyethyleneterephthalate at the following component ratio, wt %: sulphur gas - 11-21, fuel oil - 3.85, polymer additive - 0.15, and proppant - 75-85. |
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Composition for producing heat-resistant composites Composition for producing fire-resistant composites, which contains spent catalyst IM-2201, crushed rock, sand and H3PO4, further contains slag from smelting extra-low-carbon ferrochrome containing, wt %: SiO2 - 5.8; Al2O3 - 54.8; Fe2O3 - 1.88; CaO - 13.2; MgO - 14.8; Cr2O3 - 5.4; R2O - 2.3, with the following ratio of components, wt %: spent catalyst IM-2201 10-15, crushed rock 33-40, sand 10-13, orthophosphoric acid H3PO4 10-15, slag from smelting extra-low-carbon ferrochrome 24-30. |
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Method of concrete mixture preparation Preparation method consists in that molybdenum scheelite wastes in an amount of 9-10% and an organic substance - crushed corncobs - 7-8% are additionally added to portland cement in an amount of 25-30%, chip 12-15% and sand 15-18% , the rest is water. |
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Composition for production of heat resistant composites Composition for production of heat resistant composites includes a waste catalyst IM-2201, broken stone, sand and H3PO4, additionally contains sludge of a nickel-skeletal catalyst with content, wt %: SiO2 - 5.3; Al2O3 - 26.8; Fe2O3 - 0.8; CaO - 2.9; MgO - 1.3; R2O - 24.74; LOI - 37.1, with the following component ratio, wt %: waste catalyst IM-2201 10-15; broken stone 33-40; sand 10-13; orthophosphoric acid H3PO4 10-15; sludge of nickel-skeletal catalyst 24-30 with content, wt %: SiO2 - 5.3; Al2O3 - 26.8; Fe2O3 - 0.8; CaO - 2.9; MgO - 1.3; R2O - 24.7401; LOI - 37.1. |
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Composition for manufacturing heat resistant composites Composition for manufacturing heat resistant composites includes a waste catalyst IM-2201, broken stone, sand and H3PO4, additionally contains slag from ferrotitanium smelting with content, wt %: SiO2 - 2.5; Al2O3 - 72.18; TiO2 - 10.3; Fe2O3 - 0.34; CaO - 11.4; MgO - 3.5 with the following ratio of components, wt %: waste catalyst IM-2201 10-15, broken stone 33-40, sand 10-13, orthophosphoric acid H3PO4 10-15, slag from ferrotitanium smelting 24-30. |
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Dry construction mixture contains components with the following ratio, pts. wt.: portland cement 0.75-1, quartz sand with fineness ratio equal to 0.95-1.05, 2.9-3.0, ferruginous hydrated cake, ground to pass through the sieve with holes of 0.2 mm, 0.3 - 0.55. |
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Concrete mixture comprises, pts. wt. portland cement 26-28, expanded perlite sand, crushed to pass through the mesh No. 014, 29.7-37.7, fine quartz sand 12-16, sodium methylsiliconate or sodium ethyl silicate 0.2-0.3, water 24-26. |
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Particularly rapidly hardening pozzolanic cement mixtures Invention relates to a pozzolanic cement composition and to a method of its production. The pozzolanic cement composition includes coarser particles of pozzolan and finer particles of hydraulic cement, containing tricalcium silicate, for instance, Portland cement. The particles coarser than 10 mcm, mainly (50%, 65%, 75%, 85% or 95%), are the pozzolan particles, the particles finer than 10 mcm, mainly (50%, 65%, 75%, 85% or 95%), are the particles of hydraulic cement. From excessive calcium of hydraulic cement formed is calcium hydroxide, which reacts with the pozzolan particles, if necessary, in a combination with additional lime. Pozzolanic cement consists of pozzolan at least by 30%, 40%, 45%, 55%, 65% or 75% (relative to taken together particles of pozzolan and hydraulic cement) and less than by 70%, 60%, 55%, 45%, 35% or 25% consists of hydraulic cement. Method of manufacturing the pozzolanic cement composition includes mixing flows of particles of hydraulic cement and pozzolan with the said particle size. The invention is developed in dependent items of the invention formula. |
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Invention proposes a building material obtained by preparing a mixture of caustic magnesite and expanded vermiculite with bulk density of 90 to 250 kg/m3 by adding effective amount of water solution of magnesium chloride with density of 1120÷1290 kg/m3; amount of expanded vermiculite is 38.4÷217 kg on a one cubic metre basis; amount of caustic magnesite is 128÷217 kg on a one cubic metre basis, and volumetric ratio of caustic magnesite and expanded vermiculite is 1:3÷4:5. |
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Dry building mixture for monolithic-type building construction, which includes Portland cement, alumina cement, hydrated lime, gypsum, quartz sand, filler, re-dispersed polymer, cellulose ester, antifoaming additive, superplasticising agent, hardening agent, retarding agent, contains bauxite cement as alumina cement, hemihydrate plaster as gypsum, quartz sand with fineness modulus of up to 1.2, filler with specific surface area S sp 2.5-2.8 cm2/g, which contains 5-7 wt % of nanoparticles, polycarboxylate superplasticising agent and in addition high-molecular chitosan at the following component ratio, wt %: Portland cement - 12-33, bauxite cement - 12-19, hydrated lime - 0.3-0.5, hemihydrate plaster - 2.5-6, quartz sand with fineness modulus of not more than 1.2 - 30-50, the above filler - 5-18, re-dispersed polymer - 4-6, cellulose ester - 0.1-0.17, antifoaming additive - 0.1-0.3, polycarboxylate superplasticising agent - 0.2-0.3, hardening agent - 0-0.5, retarding agent - 0-3.5, high-molecular chitosan (200-250 kDa) - 1-2 wt % of Portland cement weight. |
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Plasticiser-containing hardening accelerator composition Invention relates to a method of preparing a hardening accelerator composition by reacting a water-soluble calcium compound with a water-soluble silicate compound and a method of preparing a hardening accelerator composition by reacting a calcium compound with a silicon dioxide-containing component in an alkaline medium, in both cases the reaction of the water-soluble calcium compound with the water-soluble silicate compound being carried out in the presence of an aqueous solution which contains a water-soluble comb polymer suitable as a plasticiser for hydraulic binders. The invention also relates to a composition of calcium silicate hydrate and comb polymer, use thereof as a hardening accelerator and for reducing permeability of hardened mixtures. |
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Method of obtaining stable sulphur-binding composition and composition obtained thereof Invention can be used for obtaining concretes and composite sulphur-based materials. Method of obtaining stable sulphur-binding composite material includes preparation of solid filling agent, soaking filling agent with organic modifier, heating and drying filling agent soaked with modifier, mixing it with elemental sulphur and cooling to formation of solid product. |
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Complex additive for gypsum-cement-pozzolan binder contains a superplasticiser that moderates setting - plasticiser BEST-TB and carboxylate polyether Odolit-K at the following ratio of components, wt %: plasticiser BEST-TB 25-75; carboxylate polyether Odolit-K 25-75. |
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Gypsum perlite contains a gypsum binder, such as a processed mechanically activated phosphogypsum ground to 5-40 mcm (active gypsum), hydrophobizated swollen sand, superplasticiser Melflux at the following ratio of components, wt %: active gypsum - 84.8-93.8%, hydrophobizated swollen perlite sand - 6-15%, superplasticiser - 0.2%. |
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Jointing mix containing portland cement, slaked lime, limestone, cellulose ether, starch ether and plasticiser, additionally contains red mud washed from alkali and dried, and the plasticiser is vinyl acetate copolymer with vinyl versatate at the following ratio of components, wt %: portland cement 30-33, slaked lime 1.5-2.0, limestone 60-65, cellulose ether 0.15-0.20, starch ether 0.01-0.02, copolymer of vinyl acetate with vinyl versatate 1.0-1.5, red mud 0.3-5.0. |
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Invention relates to industry of construction materials and can be used for obtaining concrete construction products. Granulated nanostructuring filling agent based on highly silica components for concrete mixture, consisting of silica-containing raw material in form of granules with size 0.5-10 mm, which have core, bound by means of water solution of alkali-containing binding agent, and protective envelop, where core consists of highly silica rock, crushed until it passes sieve with 0.315 mm cell or swollen perlite sand with particle size to 0.16 mm, as binding agent used is water solution of hydroxide of alkali metal and sodium silicate, taken with ratio 0.6-0.99:0.01-0.4 by weight, in amount 5-30% of mixture, and protective envelop on core surface is formed by its granulation with dry Portland cement with further hardening to strength not lower than 0.12 MPa. Concrete mixture for manufacturing construction product in accordance to one version contains, wt %: Portland cement 15-25, sand 50-60, water 10-13, claimed filling agent 2-20; in accordance with the other version it contains, wt %: Portland cement 20-35, water 10-15, claimed filling agent 50-70. Concrete construction product, manufactured from said mixture by one or the other version. |
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Colmating composition (versions) Invention relates to preparations used for increasing water resistance of concrete, namely to elaboration of novel concrete-colmating (imperforating concrete pores) composition. In basic version composition represents mixture of salts, formed by metals from the group: sodium, potassium, calcium, aluminium, and acids from the group: nitric, formic, sulfuric, carbonic, with the following ion ratio (ion weight in composition, g)/(100 g of composition): sodium 5.6-32, calcium 0.4-17.2, potassium 1.5-27.2, aluminium 0.5-7.6, nitrate 4.1-62.1, formiate 0.6-29.7, sulfate 10.3-54.7, carbonate 1.1-29.7, as well as complex-forming additives (such as, for instance, carbamide, nitryltriacetic acid, imino-N,N-diacetic-N-methylene phosphonic acid; glycin-N,N-di(methylene phosphonic) acid, iminodi(methylene phosphonic) acid; diaminopropanol- N,N,N',N'-tetraacetic acid; 2-hydroxypropylene diamine- N,N,N',N'-tetra(methylene phosphonic) acid; 2,3-dihydrobutylene-1,4-diamine- N,N,N',N'-tetra(methylene phosphonic) acid; 2,3-dihydroxybutylene-1,4-diamine- N,N,N',N'-tetraacetic acid; nitryl-tri(methylene phosphonic) acid; 1-hydroxyethylene diphosphonic acid; ethylenediamin- N,N,N',N'- tetra(methylene phosphonic) acid; ethylenediamine-N,N,N',N'- tetraacetic acid; in amount not more than 20% of colmating composition weight. |
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Geopolymer composite binders with given properties for cement and concrete Invention relates to geopolymer compositions. A dry mixture for a geopolymer binder contains at least one fly ash containing calcium oxide in amount of less than or equal to 15 wt %, at least one gel formation accelerator and at least one hardening accelerator having a composition different from that of said ash. Said dry mixture prepared by mixing with an activator. A geopolymer concrete or mortar composition obtained by mixing said binder with an aggregate. Methods of preparing a concrete or mortar composition using said binder. The invention is developed in subclaims. |
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High-strength concrete is made from a mixture containing portland cement, sand, crushed stone, water and a complex additive made of sole of ferric hydroxide (III) with density equal to 1.021 g/cm3, hydrogen index 4.5-5.5 and plasticiser, the plasticiser is a superplasticiser POLYPLAST-3MB, at the following ratio of components, wt %: 15.50-16.00 and 84.00-84.50 accordingly, at the following ratio of components of the raw mix, wt %: portland cement 19.95-26.85; sand 21.80-24.70; crushed stone 42.40-44.50; specified additive 1.55-2.10; water 7.40-8.75. |
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Method to produce wood concrete products with making base for plastering on their surface In the method to manufacture wood concrete items with production of a base on their surface for plastering, providing for preparation and dosing of a hydraulic binder, ground cane stems, water, mixing of components, moulding of items with vibration, hardening, moulding with vibration is carried out so that cane stems cut into sections with length of 4-6 cm are located near the surface of the items, with one end staying in the mix, and with the other one - protruding outside and forming a base for application of plaster. |
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Concrete mix includes, wt %: portland cement 24.0-26.0; haydite of fraction 20-40 mm 40.4-48.5; haydite sand 6.0-8.0; 3% solution of hydrogen peroxide 0.01-0.03; caproic fibre cut into sections 10-20 mm 0.47-0.57; water 21.0-25.0. |
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Concrete mix includes, wt %: portland cement 26.0-30.0; ash-slag filler 49.4-51.3; glass fibre cut into sections 10-20 mm 0.3-0.5; sodium citrate 0.04-0.06; technical lignosulfonate LST 0.16-0.24; water 20.0-22.0. |
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Sgraffito plaster contains, wt %: lime paste 55.0-65.0; quartz sand 10.0-15.0; glauconite 10.0-30.0. |
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Concrete mix includes portland cement, filler, tempering water and additive - complex solution with pH=4-5 with H4SiO4 sol base, besides, the specified complex solution is prepared at the following ratio of mixture components, wt %: microsilica 0.113-0.227, superplasticiser Relamix type 2 with pH=9±1 0.076-0.15, concentrated hydrochloric or acetic acid, or sulphuric acid 0.011-0.023, water 3.58-7.16 at the following ratio of concrete mix components, wt %: portland cement 22.63-22.68; filler 67.91-68.04; specified additive 3.78-7.56; tempering water 1.9-5.5. |
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High-strength concrete is produced from a mix containing portland cement, sand, crushed stone and water and a complex additive containing sol of iron hydroxide (III) with density equal to 1.021 g/cm3, hydrogen index 4.5-5.5 and plasticiser Sikacrete PP1 TU at the following ratio of components, wt %: 10.50-11.00 and 89.00-89.50 and accordingly, at the following ratio of components of a raw mix, wt %: portland cement 19.50-26.65; sand 21.80-24.70; crushed stone 42.40-44.50; specified complex additive 1.45-2.00; water 7.70-9.30. |
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Mixtures, containing organic silicon compounds, and their application Inventions relate to protection of substrates against corrosion. Claimed is dispersible redispersible or water-soluble mixture for reinforcing construction materials and protection against corrosion, based on, at least, one water-soluble organic polymer and, at least, one organic silicon compound, which contains, at least, one SiOSi-bond, with content of organic polymer constituting approximately from 40 to 80 wt % counted per the sum of organic polymer and organic silicon compound; and organic silicon compound, which contains, at least, one SiOSi-bond, is based on oligomeric mixture of alkylalkoxysiloxanes, which contains from 50 to 100 wt % of alkylalkoxysiloxanes and has oligomerisation degree mainly from 2 to 20, with oligomer mixture of alkylalkoxysiloxanes satisfying the overall formula I: (R")Si(OR"')xOy (I), where groups R" represent similar or different linear, branched or cyclic alkyl radicals with 1-18 carbon atoms, mainly methyl, ethyl, propyl, hexyl, octyl, hexadecyl; groups R"' are similar or different and represent hydrogen or linear or branched alkyl radical with 1-4 carbon atoms, mainly methyl, ethyl, propyl, and 1,0<x<2,0 and 0,5<y≤1,0, on condition that (2y+x)=3. |
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Concrete mix contains, wt %: portland cement 26.0-30.0; ash slag filler 49.1-51.1; caproic fibre cut into sections 10-20 mm 0.2-0.3; sodium citrate 0.04-0.06; sodium ethyl siliconate 0.54-0.66; water 20.0-22.0. |
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Granulated composite filler for silicate wall products based on tripoli and silicate wall product Granulated composite filler for silicate wall products with size of 0.5-10.0 mm, comprising a core and a shell, where the core is produced by granulation of the mixture of jointly ground tripoli and sodium hydroxide to specific surface of 150-250 m2/kg, at their mass ratio of 0.70-0.95:0.05-0.30 with a binder - an aqueous solution of sodium silicate with density of 1.2-1.3 g/cm3 in the amount of 0.1-7.0 wt % of the mixture, and the shell is formed on the surface of the core by its rolling by a dry powdered mixture of jointly ground burnt lime and sodium fluosilicate at the mass ratio of 0.85-0.95:0.05-0.15, with subsequent hardening to strength of at least 2.1 MPa, and when after specified rolling they additionally spray 40% aqueous solution of glyoxal in the amount of 1.0-7.0 wt %. (per 100% substance) of the mass of shell components. The silicate wall product characterised by the fact that it contains the above granulated composite filler. |
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Dynamic copolymers for preservation of placeability of cement compositions Invention relates to method of obtaining cement compositions, holding sagging or holding sagging with high early strength. Method includes mixing hydraulic cement, filling agent, water and sagging-holding additive, which represent dynamic polycarboxilate copolymer. Copolymer contains residues of, at least, the following monomers: A) unsaturated dicarboxylic acid, B) at least, one ethylene-unsaturated alkenyl ether, which has C2-4 oxyalkylene chain with from 1 to 25 links, C) at least, one ethylene-unsaturated alkenyl ether, which has C2-4 oxyalkylene chain with from 26 to 300 links, D) ethylene-unsaturated monomer, which contains part, hydrolysed in cement composition, in which residue of ethylene-unsaturated monomer, when hydrolysed, contains active binding site. Ratio of component A acid monomer to alkenyl ethers of component B and component C(A):(B+C) constitutes from1:2 to 2:1. Ratio of acid monomer of component A to ethylene-unsaturated monomer of component D, which contains hydrolysed part, constitutes from 16:1 to 1:16. |
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Additive for construction mixes Additive comprises the following components, wt %: microorganisms of Leuconostoc mesenteroides type cultivated on a synthetic nutrient medium 0.5-2.7; microquartz 97.3-99.5. |
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Granulated composite filler for silicate wall products with size of 0.5-10.0 mm, comprising a core and a shell, where the core is produced by granulation of the mixture of jointly ground siliceous zeolyte rock and sodium hydroxide to specific surface of 150-250 m2/kg, at their mass ratio of 0.70-0.95:0.05-0.30 with a binder - an aqueous solution of sodium silicate with density of 1.2-1.3 g/cm3 in the amount of 0.1-7.0 wt % from the mass of core components, and the shell is formed on the surface of the core by its rolling by a dry powdered mixture of jointly ground burnt lime and sodium fluosilicate at the mass ratio of 0.85-0.95:0.05-0.15, with subsequent hardening to strength of at least 2.1 MPa, and when during production of the core simultaneously with the specified binder they use alkylsulfonate heated to 50°C in the amount of 0.1-5.0 wt % of the mass of core components. The silicate wall product characterised by the fact that it is made using the above granulated composite filler. |
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Invention relates to highly strong concrete, which can be used for manufacturing products for industrial and civil construction, as well as in erecting constructions of special purpose. Highly strong concrete consists of mixture, including Portland cement, sand, broken stone, silica-containing component, represented by sol H4SiO4 with density ρ=1.014 g/cm3 and value of pH=4±0.5, additive - polycarboxylate polymer with ρ=1.012 g/cm3 and pH=6±0.5 and water with the following content of components, wt %: Portland cement 15.00-16.93, sand 30.70-32.39, broken stone 44.10-44.12, silica-containing component 0.09-0.10, additive - polycarboxylate polymer 0.18-0.19, water 8.00-8.20. |
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Heat-insulation structural masonry admixture based on light filler Heat-insulation structural masonry admixture based on a light filler contains, kg/m3: portland cement CEM1-42.5N 173-346, quartz sand from Razumenskoe deposit 700-1260, hollow microspheres of Novocherkasskaya regional power station 50-250, a water-retention additive Mecellose FMC 24502 0.1% of the portland cement mass, water - balance, besides, percentage content of light filler - specified microspheres - is given from the volume of sand. |
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Invention relates to the industry of building materials and can be used in manufacturing products in civil and industrial construction, monolithic construction and for erection of special-purpose structures. The high-strength light concrete made from a concrete mixture contains portland cement, filler, a plasticiser, water, a mineral part consisting of microsilica with average particle size of 0.01-1 mcm, rock flour - a product of grinding quartz sand with specific surface area of 700-800 m2/kg and quartz sand with grain size of 0.16-0.63 mm, with the following ratio of components, wt %: portland cement 33.8-53.0, microsilica 4.77-13.8, rock flour 1.5-11.9, quartz sand 5.1…32.2 , microspheres 4.3-19.27, plasticiser 0.3-0.48, water - the balance. |
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High-strength concrete contains portland cement, sand, crushed stone and water and a complex additive represented by sol of ferric hydroxide (III) with density equal to 1.021 g/cm3, hydrogen index 4.5-5.5 and additive Sika PerFin 300 at the following ratio of components, wt %: 14.50-15.00 and 85.00-85.50 accordingly, at the following ratio of components of a raw mix, wt %: portland cement 21.20-28.00; sand 21.80-24.70; crushed stone 42.40-44.50; specified additive 0.10-0.30; water 7.70-9.30. |
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High-strength concrete produced from a mix containing portland cement, sand, crushed stone and water and a complex additive containing sol of ferric hydroxide (III) with density equal to 1.021 g/cm3, hydrogen index 4.5-5.5 and plasticiser, differing by the fact that as a plasticiser it contains a superplasticiser Sika 1+, at the following ratio of components, wt %: 11.50-12.00 and 88.00-88.50 accordingly, at the following ratio of components of a raw mix, wt %: portland cement 21.60-28.40; sand 21.80-24.70; crushed stone 41.60-43.40; specified additive 0.50-1.00; water 7.70-9.30. |
Another patent 2513543.