RussianPatents.com
|
Method of construction materials manufacture based on magnesium oxychloride cement. RU patent 2376260. |
|
FIELD: construction. SUBSTANCE: method of construction materials production includes mixing of activated powder based on caustic magnesite, magnesium chloride solution and filler. The activated powder is produced by joint milling to specific surface of particles 4000-20000 cm2/g of magnesite caustic powder, tribasic calcium phosphate, silica gel, methylcellulose and construction gypsum at the following ratio of components, wt %: magnesite caustic powder 40-70, tribasic calcium phosphate 1-8, silica gel 3-12, methylcellulose 0.04-0.6, construction gypsum is the remaining. EFFECT: improved strength and water tightness. 4 cl, 5 tbl
|
Fast-setting shrink-resistant compound for repair of concrete, road, airdromes pavements and bridge floors / 2362752 Invention refers to the field of construction and can be used to repair concrete pavements of the roads and airdromes airstrips. The compound contains phosphate magnesium binding material, microfiber, filler (sand or ballast stone) and water with the following composition of phosphate magnesium binding material (wt %) magnesium oxide - 25-35, monosubstituted ammonia phosphate and/or monosubstituted sodium phosphate -15-25, sodium polyphosphate- 1-30 (in relation to the mass of the said monosubstituted phosphates), chamot - 35-50, cellulose or basalt microfiber and additionally the sodium tetraborate and/or boric acid with following component content in relation to the mass of the said binder (wt %): the said microfiber - 0-7.0, the said filler -0-150, water - 0.1-0.2, sodium tetraborate and/or boric acid - 0.3-7.0. |
Composition for concrete surface finishing / 2332391 Invention relates to the compositions, which are used in construction for finishing and repair of concrete surface and reinforced concrete constructions. The composition for concrete surface finishing includes, weight ratio %: sodium carboxymethyl cellulose 2.0-4.0; gypsum filler 46.0-50.0; cement kiln dust 18.0-22.0; glycerin 1.0-2.0; caustic magnesite 8.0-12.0; ammonium chloride 1.0-2.0; water - the rest. |
Magnesia binder-based composition / 2290380 Invention is directed to preparing cast mixes for manufacturing finishing tiles and panels, stools, footsteps, and to manufacturing cast-in-place structures and floors as well as in production of dry mixes for performing indoor and outdoor finishing of buildings and constructions. Composition according to invention contains, wt %: caustic magnesite 10-30, active mineral additive 0.7-1.4, fine magnesium hydrosilicate 0.35-0.95, aqueous magnesium chloride (density 1.2-1.25 g/cm3) 30-35, sodium chloride 0.3-0.6, MeCl (Me = K+, L+, or NH4+) 0.3-0.6, aggregate - the balance. |
Dry mixture for repair of the products made out of concrete / 2276118 The invention is pertaining to the field of building industry, in particular, to production of the construction materials based of magnesia cements and may be used at the urgent repairs of the concrete covering of the highways and runways of the aerodromes, and also at the redecorating repairs of the concrete structures surfaces. The technical result of the invention is preparation of the composition from the dry-mixture tempered by water, which after solidification has the heightened strength for bending and compression, that allows to apply it for the repair works at removal of defects of the concrete surfaces. The dry-mixture for repair of the items made out of the concrete contains the binding, the filler and the organic components. In the capacity of the binding it uses magnesium oxide and in the capacity of the organic components - a cellulose ester and the polymeric filaments. At that the mixture additionally contains the monosubstituted ammonium phosphate, aluminosilicate, expanded perlite and sodium tetraborate at the following ratio of the components ( in mass %): magnesium oxide - 9-23, the monosubstituted ammonium phosphate - 7-23, aluminosilicate - 12-32, sodium tetraborate - 0.2-1.4, the expanded perlite - 0.2-1.5, cellulose ester - 0,1-0.7, the polymeric filaments - 0.1-0.7 and the filler - the rest. In the capacity of the filler may be used sand or macadam, or the mixture of the macadam and the sand at their ratio from 1:1 up to 4:1. In the capacity of the cellulose ester may be used carboxymethylcellulose, or carboxyethylcellulose or methylcellulose or hydroxymethylcellulose. In the capacity of the polymeric filaments may be used the filaments based on cellulose or thee polytetraphthalate filaments, or the polyester filaments. |
Method of production of the raw mixture for manufacture of the finishing and ornamental construction products (versions) / 2276117 The invention is pertaining to the methods of production of the raw mixture for manufacture of the finishing and ornamental construction products. The technical result of the invention is manufacture the finishing and ornamental products having the balneologic effect with the heightened emission of the aeroions of an iodine, magnesium and bromine during the long period of time of operation and at keeping the basic operational performances - such as the strength and crack-resistance. The method of production of the raw mixture for manufacture of the finishing and ornamental products includes intermixing the caustic magnesite with the sawdust, with the subsequent dampening of the mass with the bischofite water solution, the final intermixing. At that the mixture is introduced with iodinolum with amount of 0.3-0.6 volumetric shares, which is beforehand stirred with the water solution of bischofite. The alternative version of the method includes intermixing of the caustic magnesite with the sawdust and the subsequent dampening of the mass with the bischofite water solution and the final intermixing. At that the mixture is added with the crystals of the carnallite mineral of 2 mm to 10 mm size in the amount of 0.25-0.4 vol. shares. The crystals of the carnallite mineral are added right after the final intermixing of the basic components of the mixture, and stir during no more than 1.5 minutes. |
Raw mixture for production of finishing and ornamental building materials / 2268247 Claimed mixture contains (vol. pts): bischofite aqueous solution 0.7-1.0; caustic magnesite 1.0-1.5; wood sawdust 2.0-3.5; and additionally iodinol pre-dissolved in bischofite aqueous solution 0.3-0.6. Also is disclosed raw mixture containing (vol. pts): bischofite aqueous solution 0.7-1.0; caustic magnesite 1.0-1.5; wood sawdust 2.0-3.5; and additionally crystal catnallite mineral introduced after caustic magnesite, wood sawdust and bischofite aqueous solution 0.25-0.40. |
Lime and siliceous binder, method of lime and siliceous binder production and method of moulding sand production for extruded silicate items / 2376258 As disclosed by the invention, the method of lime and siliceous binder production includes separate milling of caustic lime and quartz sand and their further mixing. Quartz sand is milled by wet method and as a result, highly concentrated suspension is produced with 12-20% humidity containing particles less 5 mcm 20-50% and at the following ratio of components, wt %: the above suspension (as dry substance) 15-25, caustic lime 75-85. Lime and siliceous binder is produced using the above described method. Method of moulding sand production is intended for manufacturing extruded silicate items. This method provides for mixing quartz sand with highly-concentrated suspension of 12-20% humidity and containing particles less 5 mcm 20-50%, which is made by wet milling of quartz sand. Next, this mixture is mixed up with caustic lime and further moistened until moulding humidity is achieved. All operation are conducted at the following ratio of components, wt %: quartz sand 70-84, the said lime and suspension at their ratio, wt % to be: lime 75-85 and suspension 15-25, 16-30. The invention is developed in dependant items. |
Concrete mix and method of concrete item manufacture from concrete mix / 2376257 Inventions may be used for manufacturing concrete items intended for floor elements assembling in buildings and structures, for assembling sidewalks, pedestrian and lawn & garden paths, pedestrian squares and access platforms of public transport and particularly, for producing paving slabs and edge stones, fencing and outer lining, decorative items. The concrete mix includes, wt %: Portland cement 24.0-29.0, mineral filler - mine rock milling wastes - gabbro-diorite or gabbro-diabase, or quartzite from 0.01 to 10.0 mm fractions 40.3-49.8, sand 20.5-30.0, superplasticising agent 0.35-0.45, water 0.17-0.25. Method of concrete item manufacture from the above described concrete mix includes mixing the above Portland cement, mineral filler and sand. After that water is added with previously dissolved superplasticising agent until concrete balls are generated. The above mentioned concrete balls are subject to further horizontal vibration in plastic box until they are completely spread. The spread concrete balls are covered with polyethylene film to preserve moisture until they are completely set. Finally, the prepared solidified mixture is unloaded. The inventions are developed in the dependent points. |
Mortar / 2376256 Mortar including cement, sand, additive and water consists of sand having maximum fraction size 0.315 mm, composite chemical additive containing, superplasticising agent Peramin-SRA, cellulose ether at 1% viscosity of solution at 20°C=7000 MPa/sec, expanding additive fro cement Denka CSA and Sodium fluoride at the following ratio of components, wt %: superplasticising agent Peramin-SRA -17.65-18.65; cellulose ether 1% viscous solution at 20°C=1000 MPa/sec - 11.06-11.76; expanding additive Denka CSA - 58.40-58.82; sodium fluoride - 11.29-11.77. In addition, mortar contains dolomite limestone with maximum size of fractions 160 mcm at the following ratio of components, wt %: Portland cement - 29.17-33.3; sand with maximum size of fractions 0.315 mm - 37.05-40.15; dolomite limestone with maximum size of fractions 160 mcm - 11.7-12.5; the above mentioned composite additive - 1.45-1.48; water - 16.5-16.7. |
Mortar / 2376256 Mortar including cement, sand, additive and water consists of sand having maximum fraction size 0.315 mm, composite chemical additive containing, superplasticising agent Peramin-SRA, cellulose ether at 1% viscosity of solution at 20°C=7000 MPa/sec, expanding additive fro cement Denka CSA and Sodium fluoride at the following ratio of components, wt %: superplasticising agent Peramin-SRA -17.65-18.65; cellulose ether 1% viscous solution at 20°C=1000 MPa/sec - 11.06-11.76; expanding additive Denka CSA - 58.40-58.82; sodium fluoride - 11.29-11.77. In addition, mortar contains dolomite limestone with maximum size of fractions 160 mcm at the following ratio of components, wt %: Portland cement - 29.17-33.3; sand with maximum size of fractions 0.315 mm - 37.05-40.15; dolomite limestone with maximum size of fractions 160 mcm - 11.7-12.5; the above mentioned composite additive - 1.45-1.48; water - 16.5-16.7. |
Highly stable mortar to salt efflorescence generation / 2376255 Mortar includes Portland cement, sand and brucite burnt at 1000°C during 10 minutes. It contains 97-99 wt % magnesium oxide, which is milled to specific surface 290-310 m2/kg at the following ratio of components, wt %: Portland cement 22.50-24.75, sand 67.50-74.25, the above brucite 1-10. |
Highly stable mortar to salt efflorescence generation / 2376255 Mortar includes Portland cement, sand and brucite burnt at 1000°C during 10 minutes. It contains 97-99 wt % magnesium oxide, which is milled to specific surface 290-310 m2/kg at the following ratio of components, wt %: Portland cement 22.50-24.75, sand 67.50-74.25, the above brucite 1-10. |
Raw mix for production of cement bonded particle board / 2376254 Raw mix for producing cement bonded particle board includes the following in wt %: Portland cement 27.06-37.81, milled conifer timber with wooden particles size not exceeding 40 mm in length and 10 mm in width and 5 mm in thickness 20.16-39.95, water 28.39-36.24, liquid soda ash glass 0.71-0.90, industrial cleared aluminium sulfate 0.48-0.61, superplasticising agent SP-1 0.02-0.04, and poly vinyl acetate 3.37-4.26. |
Raw mixture for manufacturing gypsum items / 2375327 Raw mixture for manufacturing gypsum items includes the following, wt %: gypsum 64-74; fibrous filler-flakes of capron fibres from 10-1000 ultimate fibres 1-50 mm long 0.5-1.5; calcium lignosulphonate 0.5-1; vinyl acetate polymer 0.1-0.2; bitumen emulsion 0.1-0.2; amylose 0.1-0.2; water 23.0-34.6. |
Putty / 2375326 Putty includes the following, wt %: cement 61.37-65.75, clay 2.0-3.0, water 30.0-34.0, lime glue 1.0-1.4, carboxymethyl cellulose 0.03-0.05, and superplasticising agent C-3 0.6-0.8. |
Method of making heat-resistant concrete / 2374209 Invention relates to the industry of construction materials and can be used in making construction objects and structures from heat-resistant concrete. The method of making heat-resistant concrete involves batching filler and binder components, stirring them, moulding objects and hardening, with subsequent ageing. The filler used is waste ash-slag mixture from Irkutsk thermal power plant 6 in Bratsk with packed density ρ=1250 to 1330 kg/m3, moisture 3 to 4%, consisting of 20 to 47% broken slag with particle size of 5 mm and 80 to 53% slag sand with fineness modulus of 4.41 to 3.57, with the following ratio of fractions, %: 5 mm fraction - 20.0 to 47.0, 2.5 mm fraction - 10.0 to 26.6, 1.25 mm fraction - 11.0 to 11.2, 0.63 mm fraction - 9.0 to 23.0, 0.315 mm fraction - 2.0 to 9.0, 0.14 mm fraction - 7.8 to 11, less than 0.14 mm fraction - 2.2 to 10. Ash alkaline binder is used, consisting of field I flue ash, obtained from burning brown Kansko-Achinsky coal at thermal power plant 7 in Bratsk Irkutsk region, and liquid glass from multitonnage wastes from ferrosilicon production at the ferro-alloy-microsilica Bratsk factory with packed density of 230 to 245 kg/m3 and containing fine crystalline graphite particles and β-modification of silicon carbide in amount of 10 to 13%, with silica modulus n=1 and density ρ=1.33-1.41 g/cm3, with the following ratio of components, wt %: said flue ash 17.2 to 40.3, said liquid glass 19.8 to 31.2, said slag sand 10.3 to 24.1, said broken slag 27.2 to 41.0. Objects are moulded at pressure 1 to 5 MPa. Solidification takes place in a stream treatment chamber at 80°C in a 2+3+3+3 hour mode with subsequent holding steamed objects from which forms have been removed for 30 to 60 days at ambient temperature of 20 to 25°C. |
Method for production of concrete plasticizer from distillery dreg / 2243950 Method includes centrifugal preseparation of distillery dreg to provide concentrate, treatment obtained concentrate with alkali carbonate to pH 8-11, followed by addition of superplasticizer or lignosulfonate solution providing ratio of total amount of alkali carbonate and concentrate to amount of solution ‹1. Superplasticizer or lignosulfonate solution is added to obtained centrifuge effluent, providing ratio of centrifuge effluent to said solution from 0.2 to 2.0 to produce another plasticizer. Dry alkali carbonate content is not more than biomass content in raw distillery dreg. Method of present invention is useful in concrete mixtures manufacturing for producing of precast concrete and cast-in-place constructions. |
Method for production of plasticizer / 2245856 Claimed method includes sulfonation of naphthalene cut from petrochemical process, in particular naphthalene cut of process stream from benzene production, followed by condensation with formaldehyde and neutralization of obtained product with alkali. Naphthalene cut contains (mass %) naphthalene 96.4-99.5; methylnaphtalene 0.01-0.2; biphenyl 0.001-0.1; low boiling additives (e.g. alkyl benzene, methylinden, tetralin_ 0.5-3.6. |
Complex additive for building mixture / 2245857 Claimed complex powder additive contains (mass %): superplasticizer 66.7-72.7; commercial lignosulfonates 17.4-20.0; organopolysiloxane (e.g. sodium ethylsiliconate or methylsiliconate containing 5.53-6.11 mass % of silicon and having polymerization degree of 9-12) 7.3-15.9. |
Concrete containing organic fibers, dispersed in cement mortar (variants) / 2245858 Concrete containing solidified cement mortar with dispersed organic fiber is obtained by mixing of composition with water. Concrete also contains: (a) cement, (b) grained components, (c) fine dispersed puzzolane components, (d) at least one dispersing additive. Grained components (b) have particles of maximum size D not more than 2 mm, preferably not more than 1 mm. Fine dispersed puzzolane components (c) have elementary particles of size not more than 20 µm, preferably not more than 1 µm. Water content as reduced to mass of cement (a) and fine dispersed puzzolane components (c) is from 8 % to 25 %. Length of individual organic fibers I is at least 2 mm, and ratio of 1/⊘ is at least 20, wherein ⊘ denotes fiber diameter. Fiver volume is not more than 8 % of concrete volume after solidifying. Ratio R of average fiber length L and maximum size D of grained component particles is at least 5. Concrete tested to direct extension has ductility coefficient δ>1, preferably δ>1,25. |
Complex additive / 2246461 Object of invention is to increase stability of foam and to reduce shrinkage of concrete samples. For that, invention provides complex additive comprising hydrochloric and sulfuric acid salts, low-grade lignosulfonates, and, additionally, ethanolamines, said salts, in particular, being calcium, sodium, and potassium chlorides, sodium, potassium, and iron sulfates, and said ethanolamines being triethanolamine or monoethanolamine. Components are used in following proportions, wt %: chlorides 46-43, sulfates 24-31, lignosulfonates 4-8, and ethanolamines 9-15. |
© 2013-2014 Russian business network RussianPatents.com - Special Russian commercial information project for world wide. Foreign filing in English. |