RussianPatents.com
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Superplasticiser of high initial strength. RU patent 2360880. |
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FIELD: construction. SUBSTANCE: invention is related to superplasticising additive for concrete and other cement mixes with high capacity for strength growth and low air-entraining effect, which represents triple copolymer of monomers mix that have appropriate structural formulas, and to cement mixes that contain this additive. Invention is developed in dependent claims of invention formula. EFFECT: provision of low air-entraining effect, provision of high initial strength of cement mixes. 6 cl, 6 ex, 4 tbl
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Method for manufacture of granulated filler for heat insulation material / 2360878 Method for manufacture of granulated filler for heat insulation material includes preparation of raw mix based on liquid glass and finely dispersed filler by mixing, shaping of spherical granules, drying and swelling. Shaping of granules is carried out with aeration method with further maintenance in coagulating medium - 20% solution of calcium chloride, at the temperature of 20-50°C for 5-30 minutes. Drying is carried out at the temperature of 65-80°C for 5-10 minutes, swelling - at the temperature of 500-700°C for 1-2 minutes. |
Clay-phosphatic material / 2359937 Invention pertains to construction materials and may be used in manufacture of building blocks in civil and industrial construction. Clay-phosphate material containing clay loam, iron-containing waste of metallurgical production with oversize particles on strainer No 008 7-11 wt %, containing oxide Fe(II), orthophosphoric acid totally 1.24-1.25 g/cm3, additionally containing waste of copper melting production with oversize particles on strainer No 008 7-10%, containing wt %: SiO2 - 31.0; Fe2O3 - 57.9; Al2O3 - 3.2; CaO - 1.4; FeO - 1.1; MgO - 0.7; ZnO - 2.4; CuO - 1.0; MnO -0.10; TiO2 - 0.7; PbO - 0.5, with the following ratio of the components, wt %: clay loam - 40-45, said iron-containing waste - 6-8, said waste of copper melting production - 30 - 35, orthophosphoric acid 1.24-1.25 g/cm - the rest. |
Self-compacting concrete with ultrahigh properties, method of its production and use / 2359936 Invention pertains to self-compacting concrete of light shade with ultrahigh properties containing: cement, mixture of various types of sands of calcinated bauxites of various grain-size composition: fine sand with average grading less than 1 mm and coarse sand with average grading less 10 mm, if necessary white carbon, wherein size of 90% of particles is less than 1 mcm with the average diametre of 0.5 mcm; white carbon is introduced in the amount of not more than 15 wt shares per 100 wt shares of cement, anti-foam compound, super - plasticising admix, if necessary fibers and water, additionally super - small particles of calcium carbonate with specific area equal to or more than 10 m2/g, with form factor equal to or more than 0.3, preferably equal to or more than 0.4, whereat grain-size distribution of various types of cement and sand, super - small particles of calcium carbonate and of white carbon forms three and five various grain-size fractions, ratio between the average diametre of particles of one fracture and average diametre of particles of the other fracture makes 10. |
Method for production of glazed lime sand brick / 2358942 Method for production of glazed lime sand brick includes batching of the following components, wt %: quartz sand 90-95, crushed quicklime 5-10, mix preparation, brick moulding from it, autoclave processing, application of glazing suspension layer on brick surface with its further melting, prior to glazing suspension application onto brick surface crushed quicklime is introduced in glazing suspension in amount of 10-15% from its mass, and suspension is maintained to complete slaking of lime, at that application of glazing suspension onto brick surface is carried out prior to autoclave processing. |
Sgraffito plaster / 2358941 Sgraffito plaster contains the following component, vol %: lime paste 25.0-30.0; quartz sand 25.0-30.0; pigment 0.1-1.0; crushed talc - the rest. |
Sculpture material / 2358940 Sculpture material contains the following components, wt %: gypsum 30-40; water 18-26; crushed shell rock 34-52. |
Mastic / 2358939 Mastic contains the following components, wt parts: Portland cement 1.7-2.0, quartz sand 3.4-4.0; asbestos 0.6-0.8; crushed volcanic tuff 1.7-2.0. |
Fine-grained concrete / 2358938 Fine-grained concrete contains Portland cement, glauconite sand and water. Filler used is crushed glauconite sand with specific surface of Ssp=350 m2/kg. Additive used is superplasticiser C-3 at the following ratio of components, wt %: Portland cement 18.0-19.0; Glauconite sand 68.1-68.9; Filler 1.0-2.0; Superplasticiser C-3 0.1-0.2; Water 11.0-11.7. |
Granulated filler based on perlite for concrete mix, composition of concrete mix for production of construction items, method for production of concrete construction items and concrete construction item / 2358937 Granulated filler for concrete construction items, made of silica-containing and lime-containing components is made in the form of granules with size of 0.5-10.0 mm, which contain core and shell, where core is produced by granulation of mixture of the following components that have been milled together down to specific surface of 150-250 m2/kg - silica-containing component - perlite and alkaline metal hydroxide at their mass ratio of 0.70-0.95 : 0.05-0.30 with binder - aqueous solution of sodium nitrate with density of 1.2-1.3 g/cm3 in amount of 0.1-7.0% from mixture, and shell is formed on core surface by means of its rolling in dry dusty mixture of jointly milled lime-containing component - quicklime and silicofluoric sodium in mass ratio of 0.85-0.95 : 0.05-0.15, with further hardening to density of at least 0.12 MPa. Concrete mix for production of construction items, which includes the following components, wt %: above mentioned filler 5-40, Portland cement 10-25, quartz sand 15-45, water - the rest. Method for production of concrete construction items from above mentioned concrete mix, including mixing of its components, moulding of construction items, maintenance in molds and further heat and moisture treatment of items at atmospheric pressure and temperature of 85-95°C. Concrete construction item produced by above mentioned method. |
Granulated filler based on siliceous ceolyte rocks for concrete mix, composition of concrete mix for production of construction items, method for production of concrete construction items and concrete construction item / 2358936 Granulated filler for concrete mix, made of silica-containing and lime-containing components is made in the form of granules with size of 0.5-10.0 mm, which contain core and shell, where core is produced by granulation of mixture of the following components that have been milled together down to specific surface of 150-250 m2/kg - silica-containing component - siliceous ceolyte rock and alkaline metal hydroxide at their mass ratio of 0.70-0.95 : 0.05-0.30 with binder - aqueous solution of sodium silicate with density of 1.2-1.3 g/cm3 in amount of 0.1-7.0% from mixture, and shell is formed on core surface by means of its rolling in dry dusty mixture of jointly milled lime-containing component - quicklime and silicofluoric sodium in mass ratio of 0.85-0.95 : 0.05-0.15, with further hardening to density of at least 0.12 MPa. Concrete mix for production of construction items, which includes the following components, wt %: above mentioned filler 5-40, Portland cement 10-25, quartz sand 15-45, water - the rest. Method for production of concrete construction items from above mentioned concrete mix, including mixing of its components, moulding of construction items, maintenance in molds and further heat and moisture treatment of items at atmospheric pressure and temperature of 85-95°C. Concrete construction item produced by above mentioned method. |
Dispersants / 2337080 Dispersants based on copolymers are obtained by polymerization a) 5-70 wt % of one or several monomers selected from group, which includes ethylene-unsaturated monocarboxylic acids. Amins of ethylene unsaturated carboxylic acids, ethylene unsaturated dicarboxylic acids and their anhydrates, in each case with 4-8 carbon atoms, as well as monoethers (meth)acrylic acid and two-atom alcohols with 2-8 carbon atoms, b) 1-40 wt % of one or several monomers, selected from group, including ethylene unsaturated compounds with sulfonate or sulfate functional groups, c) 10-80 wt % of one or several monomers, selected from group, which includes ethylene unsaturated compounds of polyethyleneglycoles with 1-300 ethyleneoxide links and end OH-groups or groups of simple ether-OR', where R' can represent alkyl, aryl, alcaryl, aralkyl residue with 1-40 carbon atoms, d) 5-80 wt % of one or several monomers, selected from group, which includes ethylene unsaturated compounds of polyalkyleneglycoles with 1-300 alkyleneoxide links of alkylene groups, containing 3-4 carbon atoms, and end OH-groups or groups of simple ether-OR', where R' can represent alkyl, aryl, alcaryl, aralkyl residue with 1-40 carbon atoms. Invention also relates to method of dispersant production and their application. Invention is developed in dependent items of invention formula. |
Additive to cement / 2332376 Invention relates to additives to cement, polymer on the basis of polycarboxylic acid for addition to cement, method of its obtaining and cement mix. One additive to cement as main component contains copolymers (A) and (B), which average molecular weights (AMw and BMw) are connected by relation AMw>BMw or peaks of maximum molecular weights (AMp and BMp) are connected by relation AMp>BMp. Other additive to cement contains polymer on the basis of polycarboxylic acid. Polymer which is characterised by part of area from the side corresponding to lower molecular weight, P on gelpenetrating chromatography diagramme, within the range from 50 to 87%, is obtained by radical polymerisation. Cement composition contains one of said additives, cement and water. Invention is developed in dependent claims. |
Method for using redispersed powder compositions with setting promotion action / 2314274 Powder composition is prepared on base of a) homopolymers or copolymers of one or several monomers selected from group including vinyl ethers of non-branched or branched alkyl carboxylic acids with 1 - 15 C atoms, ethers of metacrylic acids and ethers of acrylic acid and alcohols with 1 - 15 C atoms, vinyl aromatic compounds, olefins, dienes and vinyl halides; b) one or several protection colloids; c) optionally with use of means preventing caking; d) promoters of setting including one or several compounds selected from group of salts of non-organic or organic acids with alkali or alkali-earth metals except calcium carbonate and magnesium carbonate. Such redispersed powder compositions feature good looseness, redispersing capability and improved resistance against caking. Used in building chemical products modified with powder compositions according to invention such as adhesives for cementing tiles, compositions for applying decorative, leveling and protective coatings, plasters, solutions for uniting and so on feature enhanced cohesion at tensioning when soaked in wet atmosphere. |
Additive for cement at improved plasticizing properties and method of preparation of such additive / 2291128 Additive contains copolymer or its salt obtained through neutralization of copolymer by alkali agent; copolymer is obtained through copolymerization of mixture of monomers including monomer presented by chemical formula 1, monomer presented by chemical formula 2 and reactive surfactant - active agent presented by chemical formula 3. Specification describes method of preparation of additive and cement composition containing such additive. |
Complex additive / 2360879 Complex additive contains components at the following ratio, wt %: superplasticiser - sodium polynaphthalene methyl sulfonate 30-45, defoaming agent - Troykyd D128 - 0.25-0.50, sodium thiosulfate - the rest. |
Complex modifier to cement concrete / 2360877 Complex modifier to cement concrete includes mineral carrier - carbonate sludge for HPP water softening and surface-active material SAM of reducing action - polycarboxylate ether at the following ratio of components, wt %: specified carbonate sludge - 99.5, polycarboxylate ether - 0.5, with content of specified modifier of 15-20% from cement weight. |
Clay-phosphatic material / 2359937 Invention pertains to construction materials and may be used in manufacture of building blocks in civil and industrial construction. Clay-phosphate material containing clay loam, iron-containing waste of metallurgical production with oversize particles on strainer No 008 7-11 wt %, containing oxide Fe(II), orthophosphoric acid totally 1.24-1.25 g/cm3, additionally containing waste of copper melting production with oversize particles on strainer No 008 7-10%, containing wt %: SiO2 - 31.0; Fe2O3 - 57.9; Al2O3 - 3.2; CaO - 1.4; FeO - 1.1; MgO - 0.7; ZnO - 2.4; CuO - 1.0; MnO -0.10; TiO2 - 0.7; PbO - 0.5, with the following ratio of the components, wt %: clay loam - 40-45, said iron-containing waste - 6-8, said waste of copper melting production - 30 - 35, orthophosphoric acid 1.24-1.25 g/cm - the rest. |
Self-compacting concrete with ultrahigh properties, method of its production and use / 2359936 Invention pertains to self-compacting concrete of light shade with ultrahigh properties containing: cement, mixture of various types of sands of calcinated bauxites of various grain-size composition: fine sand with average grading less than 1 mm and coarse sand with average grading less 10 mm, if necessary white carbon, wherein size of 90% of particles is less than 1 mcm with the average diametre of 0.5 mcm; white carbon is introduced in the amount of not more than 15 wt shares per 100 wt shares of cement, anti-foam compound, super - plasticising admix, if necessary fibers and water, additionally super - small particles of calcium carbonate with specific area equal to or more than 10 m2/g, with form factor equal to or more than 0.3, preferably equal to or more than 0.4, whereat grain-size distribution of various types of cement and sand, super - small particles of calcium carbonate and of white carbon forms three and five various grain-size fractions, ratio between the average diametre of particles of one fracture and average diametre of particles of the other fracture makes 10. |
Self-compacting concrete with ultrahigh properties, method of its production and use / 2359936 Invention pertains to self-compacting concrete of light shade with ultrahigh properties containing: cement, mixture of various types of sands of calcinated bauxites of various grain-size composition: fine sand with average grading less than 1 mm and coarse sand with average grading less 10 mm, if necessary white carbon, wherein size of 90% of particles is less than 1 mcm with the average diametre of 0.5 mcm; white carbon is introduced in the amount of not more than 15 wt shares per 100 wt shares of cement, anti-foam compound, super - plasticising admix, if necessary fibers and water, additionally super - small particles of calcium carbonate with specific area equal to or more than 10 m2/g, with form factor equal to or more than 0.3, preferably equal to or more than 0.4, whereat grain-size distribution of various types of cement and sand, super - small particles of calcium carbonate and of white carbon forms three and five various grain-size fractions, ratio between the average diametre of particles of one fracture and average diametre of particles of the other fracture makes 10. |
Chemical supplement to concrete mixtures and construction mortars / 2359935 Invention pertains to the area of construction materials, in particular, to compositions of complex supplements used in manufacture of concrete mixtures and construction mortars. Antifreezing chemical supplement to concrete mixtures contains, wt %: sodium thiosulphte - 10-77.7, sodium rhodanate - 10-77.7, sodium sulphate - 12.3-80. |
Complex additive agent to concrete mixture / 2359933 Invention pertains to construction materials, in particular, to compositions of concrete mixtures used in manufacturing of prefabricated and solid-cast concrete and reinforced concrete constructions of waterworks as well as of buildings and structures of civil-industrial and transport purposes. Complex additive agent to concrete mixture includes, wt %: 13.0-19.0 sodium nitrate, 24.0-25.0 sodium carbonate, 26.0-27.0 sodium sulfate, 2.5-3.0 calcium chloride, 7.0-9.0 calcium carbide, 2.5-3.0 calcium hydroxide, 17.0-22.0 solution of natural mineral bischofite MgCl2-6H2O of sulphate type with density of 1.24-1.35 t/m3 with mol. wt 203.303. |
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