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Concrete and mortar modifier. RU patent 2464246. |
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FIELD: chemistry. SUBSTANCE: invention relates to a concrete and mortar modifier and can be used in construction. The concrete and mortar modifier contains disodium hydroxyethylidene diphosphonate and nonylphenyl ether of polyethylene glycol and water in the following ratio, wt %: disodium hydroxyethylidene diphosphonate - 3-7; nonylphenyl ether of polyethylene glycol - 5-10; water - the balance. EFFECT: high resistance to air flow, frost-resistance and increasing strength at advanced age without reducing strength at early age. 4 ex, 1 dwg
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Complex additive for concrete mixture / 2457190 Invention relates to composition of a complex additive for concrete mixture and can be used in preparing concrete mixtures for monolithic and precast concrete and reinforced concrete structures. The complex additive for concrete mixture contains the following in wt %: phenylethoxysiloxane 2-4, carboxylate polyether 30-35, curing agent 61-68. |
Complex additive for construction mix / 2351560 Present invention may find application in construction materials industry for preparation of injection and construction mortars and concrete mixes used in construction of different structures. Complex additive for construction mix contains the following components, wt %: sodium or potassium ethyl siliconate and/or methyl siliconate of sodium or potassium 1-50, carboxylate polyether 30-80, water - the rest. Invention is developed in dependable claims of formula. |
Concrete mass / 2462435 Concrete mass contains the following components, wt %: reactive alumina - 10.0-13.0; active alumina - 0.1-6.0; highly aluminous cement - 0.1-6.0; microsilica - 3.8-6.0; silicon carbide of fraction below 63 mcm - 8.8-13.0; plasticiser - 0.5-1.0, silicon carbide of fraction 630-1600 mcm balance, tempering water - 4.5-5.5 above 100%. |
Crude mixture for making sculpture / 2462429 Invention relates to composition of a crude mixture which can be used to make sculpture. The crude mixture for making sculpture, which contains gypsum binder and starch, additionally contains cast-iron shavings ground to complete passage through a 009 sieve and urea-formaldehyde resin, with the following ratio of components in wt %: cast-iron shavings 48.0-52.0, gypsum binder 43.0-49.0, urea-formaldehyde resin 2.0-3.0, starch 1.0-2.0. |
Concrete mixture / 2462428 Invention relates to the industry of construction materials and specifically to making concrete wall blocks for low-height construction. The concrete mixture contains the following in wt %: portland cement 23.0-25.0, expanded clay with particle size 10-20 mm, 36.0- 40.0, haydite sand 10.0-14.0, saponified rosin 0.001-0.0012, sodium ethyl siliconate or sodium methyl siliconate 0.02-0.03, naphthenate soap 0.02-0.03, superplasticiser S-3 0.6-0.8, water - the balance. |
Dispersant for gypsum compositions / 2462426 Invention relates to use of a polymer P containing at least one acid link, at least one ester link and at least one amide link, and the ratio of acid links to ester and amide links is equal to 2-6, as a dispersant, especially as a plasticiser, for gypsum compositions, as well as a binder containing said polymer P and a method of preparing the binder, wherein the polymer P is added separately or premixed as an additive in solid or liquid form to the binder. The invention is developed in subclaims. |
Artificial rock / 2461531 Invention relates to the industry of construction materials. The artificial rock is made from a mixture containing the following in wt %: cement 25.0-30.0, calcium carbonate-based sand 40.0-43.5, colouring additive 3.0-10.0, foaming agent PB-2000 0.37-0.48, carboxymethyl cellulose 0.02-0.03, superplasticiser S-3 1.1-1.5, water 20.0-25.0. |
Concrete mixture / 2461524 Invention relates to compositions of concrete mixtures and can be used in production of construction materials to make masonry blocks, walkway slabs and other concrete articles. The concrete mixture contains wt % mixed binder, containing portland cement, finely dispersed filler - blast-furnace screenings of the 0.14 mm fraction, dust from electric filters of the ferroalloy industry, a plasticiser with basic naphthenic sulphonic acid, ordinary water and water modified by electric current with pH=2.1-2.5, with the following ratio of components in wt %: mixed binder: portland cement 11.86-12.15, blast-furnace screenings with a fraction smaller than 0.14 mm 2.4-3.34, dust from smelting ferrosilicon 0.8-1.28, plasticiser with basic naphthenic sulphonic acid 0.03-0.04, hardening water: ordinary 6.6-6.8, modified with pH=2.1-2.5…0.35-0.56, aggregate…76.82-76.97, water/binder ratio 0.45. |
Plaster dry construction mixture to finish building facades / 2460710 Plaster dry building mixture to finish building facades, containing grey portland cement M 400 and quartz sand, additionally contains white portland cement M 400 and waste from an asphalt-concrete plant - carbonate-silica dust containing compounds, potential deviations of which are within the following limits, wt %: CaCO3 55-60, MgCO3 22-25, SiO2 10-13, at the following ratio of components, wt %: white portland cement M 400 12-18, grey portland cement M 400 12-19, carbonate-silica dust 10-15, quartz sand 48-62. |
Plaster dry construction mixture to finish building facades / 2460710 Plaster dry building mixture to finish building facades, containing grey portland cement M 400 and quartz sand, additionally contains white portland cement M 400 and waste from an asphalt-concrete plant - carbonate-silica dust containing compounds, potential deviations of which are within the following limits, wt %: CaCO3 55-60, MgCO3 22-25, SiO2 10-13, at the following ratio of components, wt %: white portland cement M 400 12-18, grey portland cement M 400 12-19, carbonate-silica dust 10-15, quartz sand 48-62. |
Plaster dry construction mixture to finish building facades / 2460710 Plaster dry building mixture to finish building facades, containing grey portland cement M 400 and quartz sand, additionally contains white portland cement M 400 and waste from an asphalt-concrete plant - carbonate-silica dust containing compounds, potential deviations of which are within the following limits, wt %: CaCO3 55-60, MgCO3 22-25, SiO2 10-13, at the following ratio of components, wt %: white portland cement M 400 12-18, grey portland cement M 400 12-19, carbonate-silica dust 10-15, quartz sand 48-62. |
Fire-resistant masonry admixture / 2460705 Fire-resistant masonry admixture containing cambrian clay, granulated blast-furnace slag, silicate slab, crocks, water, additionally contains fire-resistant clay, sand and limestone, specified solid components are exposed to grinding until the 0.08 sieve remainder is not more than 1 %, at the following ratio of components, wt %: silicate slab 1.0-1.5, granulated blast-furnace slag 36.0-38.0, cambrian clay 15.8-16.2, fire-resistant clay 7.8-8.2, crocks 1.9-2.1, sand 7.8-8.2, limestone 5.8-6.2, water - balance. |
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. |
Raw mix and a method of preparing granulated heat-retention material / 2246462 Invention concerns porous granulated heat-retention materials serving as especially light-weight filling material for industrial and civil-construction concretes. Raw mix for preparation thereof contains, wt %: microsilica 41.20, sodium hydroxide solution (45.22% Na2O) 21.38, waterproofness-imparting organosilicon liquid (concentration 26.2%) 0.21-0.62, and water - the balance. |
Raw mix and a method of preparing granulated heat-retention material / 2246463 Invention concerns porous granulated heat-retention materials serving as especially light-weight filling material for industrial and civil-construction concretes. Raw mix for preparation thereof contains, wt %: microsilica 39.23-40.77, caustic soda (calculated as Na2O) 7.13-7.41, fly ashes from heat-and-power station 2.04-3.96, and water 49.67-49.78. |
Concrete mixture, additive for concrete mixture and cement modified with same additive (variants) / 2247090 Claimed additive contains silica component (e.g., tripoli or sodium methasilicate); superplasticizer; Lignopane with molecular weight of 10-50 kDa; air-entraining agent (e.g., neutralized air-entraining resin or wood saponificated resin) and additionally carboxymethyl cellulose. Additive is obtained by mixing of dry components in ratio (mass %): tripoli or sodium methasilicate (calculated as Si2O) 20-25; neutralized air-entraining resin or wood saponificated resin 0.005-0.01; superplasticizer 0-20; Lignopane 10-11; carboxymethyl cellulose 1-8. Said additive content is 0.3-2.5 calculated as cement mass. Concrete mixture may comprise (kg/m3) cement 250-600; filler 1590-2030; water 105-190; coarse filler (chip and/or gravel of grade 5-20 mm or 5-40 mm) and/or fine filler (sand of fineness not more than 5 mm). As fine filler at least one component selected from group containing quartz sand, sand from igneous formation, sand from metamorphic formation, haydite sand, and sand from blast-furnace dross is used. As coarse filler at least one component selected from group containing chip from igneous formation, chip from metamorphic formation, chip from sediment, chip from blast-furnace dross, etc. is used. According to one embodiment modified cement is obtained by dry agitation with 0.3-2.5 mass % of above mentioned additives. According to other embodiment modified cement is obtained by simultaneous milling of Portland cement clinker, gypsum and additive of said composition in amount of 0.3-1.0 %. Composition of present invention is useful in building industry for production of monolith and precast concrete and reinforced concrete construction, etc. |
Concrete mixture and additive "lignopane b-2" for concrete mixture / 2247092 Claimed additive contains (mass parts): Lignopane with molecular weight of 10-50 kDa 10-20; antifoaming additive 139-282 0.02-0.06; superplasticizer 0-40; additionally sodium thiosulfate and/or ammonium or sodium rhodanide 40-45; sodium carbonate 1-2. Additive content is 0.6-1.5 % calculated as cement mass. Concrete mixture may comprise (kg/m3) cement 300-520; filler 1590-2030; water 105-200; coarse filler (chip and/or gravel of grade 5-20 mm or 5-40 mm) and/or fine filler (sand of fineness not more than 5 mm). As fine filler at least one component selected from group containing quartz sand, sand from igneous formation, sand from metamorphic formation, haydite sand, and sand from blast-furnace dross is used. As coarse filler at least one component selected from group containing chip from igneous formation, chip from metamorphic formation, chip from sediment, chip from blast-furnace dross, etc. is used. Composition of present invention is useful in building industry for production of monolith and precast concrete and reinforced concrete construction, etc. |
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