Crude mixture for manufacturing fine-grained concrete

FIELD: construction materials.

SUBSTANCE: invention relates to the construction materials industry, in particular to the production of fine-grained concrete. Crude mixture for manufacturing fine-grained concrete contains, by weight: portland cement – 23.0–27.0; quartz sand – 60.0–64.0; superplasticizer C-3 – 0.6–0.8; technical lignosulfonate – 0.15–0.25; biocide – 0.0001–0.0002; synthetic vanillin – 0.001–0.002; water, heated to a temperature of 48–52 °C, is the rest.

EFFECT: technical result is high frost resistance.

1 cl, 1 tbl

 



 

Same patents:
Concrete mix // 2556551

FIELD: construction.

SUBSTANCE: concrete mix contains the following, wt %: Portland cement 23.5-24.0; fine filler 56.5-58.2; polyvinylchloride chips 2.8-4.0; water 15.0-1.0.

EFFECT: improving cold resistance and strength of concrete.

1 tbl

Mastic compound // 2556542

FIELD: construction.

SUBSTANCE: mastic compound contains the following, wt %: Portland cement 40.0-45.0; quartz sand 53.3-58.25; old car tyres that are crushed and sieved through mesh No. 2.5 0.1-0.15; asbestos 0.1-0.15; sodium ethyl siliconate or sodium methyl siliconate 1.5-2.5 at water-to-cement ratio of 0.45-0.55.

EFFECT: improvement of cold resistance of a mastic compound.

1 tbl

FIELD: construction.

SUBSTANCE: high-strength concrete from the mix comprising Portland cement, silicon dioxide containing component, an additive and water contains quartz sand with the fineness modulus, Mc. = 2.6, the crushed stone is the granite crushed stone with the fraction 5-10 mm, the silicon dioxide containing component is the colloidal solution H2SiO3 with the density ρ = 1.014 g/cm3 and pH = 4±0.5 value, and the additive is the water solution with the density ρ = 1.12 g/cm3 and pH = 7.5±0.5 consisting of the mix of polycarboxylated polymers: polycarboxylated polymer on the basis of methacrylic acid with the density ρ = 0.95 g/cm3 and pH = 7±0.5, polycarboxylated polymer on the basis of allyl ether and maleic acid anhydrite with the density ρ = 1.03 g/cm3 and pH = 7±0.5, sodium gluconate C6H11NaO7 and water at the following ratio of components, wt %: polycarboxylated polymer on the basis of methacrylic acid with the density ρ = 0.95 g/cm3 and pH = 7±0.5; - 9.3-10.0; polycarboxylated polymer on the basis of allyl ether and maleic acid anhydrite with the density = 1.03 g/cm3 and pH = 7±0.5 - 10.2-10.4; sodium gluconate C6H11NaO7 - 2.6-2.8; water - 77.2-77.5, at the following ratio of components of high-strength concrete, wt %: Portland cement 21.1-23.2; the named crushed stone 41.94-42.82; the named sand 28.3-29.0; the named silicon dioxide containing component 0.12-0.13; the named additive 0.15-0.2; water 6.24-6.75.

EFFECT: increase of mobility and survivability of concrete mix.

2 tbl

Concrete mixture // 2555966

FIELD: chemistry.

SUBSTANCE: invention relates to industry of construction materials, in particular to production of concrete tiles for floors. Concrete mixture includes, wt.p.: Portland cement 1, marble crumps of fraction 2-8 mm 2-2.2, milled glass of fraction 0.1-0.3 mm 2-2.2, with water-cement ratio 0.45-0.5.

EFFECT: increase of strength.

1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to industry of building materials and deals with compositions of raw material mixtures, which can be used for manufacturing facing tiles. Raw material mixture for manufacturing facing tiles contains, wt %: Portland cement 17.0-20.0; crushed and sieved through net No 5 asbestos cement wastes 41.7-49.5; quartz sand 17.0-20.0, superplasticiser C-3 1.3-1.5; water 15.0-17.0.

EFFECT: increase of tile frost resistance.

1 tbl

FIELD: construction.

SUBSTANCE: concrete mixture for producing heat-resistant fire-retardant coating comprises the components in the following amount (in kg per 1 m3 of concrete mixture): artificial cement - 400; ground shungite - 50; asbestos - 15; granulated blast-furnace slag - 930; water - 295. At that, the granulated blast-furnace slag has fineness modulus Mfn = 2.98 and bulk density of 500 kg/m3, and shungite has optimum dispersion: fineness modulus Mfn = 1.43, specific surface Ssp = 320 m2/kg.

EFFECT: development of composition of concrete mixture for producing the fire-retardant coating of high thermal stability, having the improved physical and mechanical properties and allowing to improve the degree of fire resistance of reinforced concrete structures.

3 tbl

FIELD: construction.

SUBSTANCE: peat and polymer mix, comprising a base in the form of peat and and a binding element, comprises five components, wt %: nanomodified peat of suspensions of polyvinyl acetate and cyclone dust of gas treatment of air of industrial enterprises (in terms of dry polyvinyl acetate in amount of 5% from mass of peat and dust - 3%) - 25, portland cement CEM-II-42.5 - 35, sodium bicarbonate - 15, ammophos - 5 and water - 20.

EFFECT: increased strength at invariable density, increased fire resistance, reduced heat conductivity.

1 tbl

FIELD: construction.

SUBSTANCE: peat and polymer mix for manufacturing of construction products, including a base in the form of peat and a binding element, differing by the fact that it comprises the following components, wt %: nanomodified peat of suspensions of polyvinyl acetate and cyclone dust of gas treatment of air of industrial enterprises (in terms of dry polyvinyl acetate in amount of 4-6% from mass of peat, dust - 2-3%) - 25%, portland cement CEM-II-32.5 - 35, calcium chloride - 10, ammophos - 5 and water - 25.

EFFECT: increased fire resistance and strength characteristics at invariable density, reduced heat conductivity, increased homogeneity of structure and durability of heat insulation material.

1 tbl

FIELD: construction.

SUBSTANCE: peat and polymer mix for manufacturing of heat insulation products, including a base in the form of peat and a binding element, comprises four components, wt %: nanomodified peat of suspensions of polyvinyl acetate and cyclone dust of gas treatment of air of industrial enterprises (in terms of dry polyvinyl acetate in amount of 4-6% from mass of peat, dust - 2-3%) - 25%, portland cement CEM-II-32.5 - 40%, sodium carbonate - 10% and water - 25%.

EFFECT: increased fire resistance and strength characteristics at invariable density, reduced heat conductivity, increased homogeneity of structure and durability of heat insulation material.

1 tbl

FIELD: oil and gas industry.

SUBSTANCE: lightweight plugging material contains cement PTsT-I-100, lightweight - expanded vermiculite, technical salt, chemical agent Crep, at the following ratio in wt %: cement PTsT-I-100 - 84.75; vermiculite - 9.42; Crep - 1.13; NaCl - 4.7. During the cement slurry preparation - expanded vermiculite, technical salt.

EFFECT: exclusion of the hydraulic fracture during wells cementation due to improved parameters of the packing cement, increased strength of cement stone at low and moderate temperatures at early stage of solidification upon simultaneous density reduction of the cement slurry.

1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to the composition of a complex additive. A complex additive for heavy concrete mixtures, which includes technical lignosulphonates and montmorillonite-containing clay, further contains a deactivated catalyst for dehydrogenating cyclohexanol from ε-caprolactam production and a product of combined dispersion to particle size smaller than 10-2 mcm of montmorillonite-containing clay and ε-caprolactam in ratio of 1/0.5 and castor oil and technical hydrogenated fat in ratio of 1/1, with the following ratio of components, wt %: technical lignosulphonates 63-70, deactivated catalyst for dehydrogenating cyclohexanol from ε-caprolactam production 5-7, montmorillonite-containing clay 16-18, ε-caprolactam 8-9, castor oil 0.5-1.5, technical hydrogenated fat 0.5-1.5.

EFFECT: longer periods for the beginning and end of hardening heavy concrete mixtures, high ultimate compression strength of the concrete, high consistency of the concrete mixture and low water absorption of the concrete.

2 tbl

FIELD: construction.

SUBSTANCE: plasticising additive for concrete includes technical lignosulphates and formaldehyde, specified components are contained at the following ratio, wt %: technical lignosulphates - 28-49.5, formaldehyde - 1-7, balance - water up to 100%, at the same time the method to produce an additive includes mixing of initial components of the additive for 360-720 minutes and heating of the mix at the temperature of 65-75°C.

EFFECT: increased mobility of a concrete mix, increased concrete strength, cement saving.

2 cl, 2 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to armature corrosion inhibitor based on water solution of fluorine-containing salt. Additionally introduced are derivatives of lignosulphonic acids with the following component ratio (wt %): fluorine-containing salt - 0.3-1; derivatives of lignosulphonic acids - 30-33; water - the remaining part.

EFFECT: said inhibitor of armature corrosion makes provide more stable passive state of armature in concrete with lower working dosage due to reduction of cement stone permeability and electrochemical effect.

4 cl, 2 tbl

Complex additive // 2527442

FIELD: chemistry.

SUBSTANCE: invention relates to field of construction materials, in particular to compositions of additives, used in production of articles from slow-moving and rigid concrete mixtures with application of technologies of classical vibrational moulding, extrusion moulding and vibropressing. Complex additive includes additives of plasticising and air-entraining action. As additive with plasticising action used are lignosulphonates, with additional introduction into it of accelerator of hardening and regulator of thixotropic properties. Complex additive contains said components with the following ratio, (wt %): lignosulphonate - 30-70; additive with air-entraining action - 2-7; accelerator of hardening - 15-60; regulator of thixotropic properties - 5-15. as additive with air-entraining action, used are alkylsulphates, alkylsulphonates, ethoxylated fatty alcohols, salts of sulphoethoxylated fatty alcohols or mixture of any said compounds. as accelerator of hardening, used are sodium rhodanide, sodium thioculphate, sodium sulphate, sodium or calcium formiate, alkanolamines or mixture of two or more said compounds.

EFFECT: claimed complex additive provides required thixotropic properties of slow-moving and rigid concrete mixtures and accelerates acquirement of strength.

3 cl, 1 tbl

FIELD: chemistry.

SUBSTANCE: claimed invention relates to composition of additive to concretes and mortars and can be applied in production of concrete and reinforced concrete products and constructions with concreting in wide range of environment temperature. In accordance with the first version complex additive for concrete and mortars contains polyalcohols and sodium sulphate, with additional introduction into it of sodium thiosulfate and rhodanide. Claimed complex additive contains said components with the following ratio, (wt %): polyalcohols - 30-80; sodium sulphate - 10-20; mixture of sodium thiosulfate and rhodanide - 10-50. Sodium nitrite can be additionally introduced into complex additive. In accordance with the second version complex additive for concretes and mortars contains polyalcohols and sodium formiate. It additionally contains acyclic, mono- or polycyclic amines with length of hydrocarbon radical C1-C3. Complex additive contains said components with the following ratio (wt %): polyalcohols - 30-70; sodium formiate - 15-25; acyclic, mono- or polycyclic amines - 15-45. Sodium nitrite can be additionally introduced into composition of complex additive.

EFFECT: obtaining complex additive for concretes and mortars with lower temperature of crystallisation, which does not impair indices of preservation of mobility of plasticised concrete mixtures, providing stable acquirement of strength in the entire range of temperatures, including negative ones.

4 cl, 3 tbl

Mortar // 2501758

FIELD: chemistry.

SUBSTANCE: mortar, which contains Portland cement, water and plasticising additive, additionally contains carbamide, and as plasticising additive applied is mixture of lignosulfonate and mixture of oxyethyl and oxypropyl ethers of polyacrylic acids, and ratio of mixture of ethers of polyacrylic acids is from 1:2 to 1:60, excluding ratio 1:3n, where n=1,2,3…20, with content of lignosulfonate in quantity from 0.20 to 0.45 wt% of Portland cement content, and content of carbamide constitutes from 0.01 to 0.10% of Portland cement weight with content of water being from 40 to 60% of Portland cement weight. Mortar can additionally contain sodium sulfate in quantity, equal to quantity of carbamide.

EFFECT: increased strength of obtained cement stone.

2 cl, 17 ex, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to building and industry of building materials, in particular to methods of producing complex nano-dispersive additives for concrete mixtures. In method of producing complex nano-dispersive additive for concrete mixture, obtained by ultrasonic dispersion of water suspension, obtained by mixing schungite, superplasticiser C-3 and water, first, solid phase of suspension is obtained by joined grinding of schungite and superplasticiser C-3 in form of dry substance to specific surface area 380-400 m2/kg in ball grinder, after which it is mixed with water, and dispersion of obtained suspension with concentration of solid phase 3% is performed until size of particles is 90-280 nm at ultrasound frequency 35 kHz with the following content of components, wt %: schungite - 75.0-89.3, superplasticiser C-3 - 10.7-25.

EFFECT: increase of concrete mixture mobility, increased strength, density, reduction of water absorption by concrete, acceleration of solidification of building products and constructions.

2 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to a composition of a complex additive for concrete mixtures and mortar and can be widely used in production of monolithic and prefabricated structures, mainly for hydraulic engineering structures and road concrete. The complex additive contains the following (pts.wt): superplasticiser S-3 5-50, isopropyl alcohol 10-55, carbamide 5-45. In a special embodiment of the invention, the complex additive contains the following (pts.wt): superplasticiser S-3 10-30, isopropyl alcohol 10-55, carbamide 5-45, ballast salts from desulphurisation of coke gas based on sodium rhodanate and thiosulphate 5-50.

EFFECT: high frost resistance of concrete in layers and high strength of the concrete after 28 days.

2 cl, 4 ex, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to composition for plasticising and water-reducing additive to concrete and mortar. Plasticising and water-reducing additive to concrete and mortar includes technical lignosulfonate and hydrophobisator in form of water-compatible emulsions of polyalkylsiloxanes with molecular weight 1-20 kDa and alkyl radicals C1-C5, sodium thiosulfate and thiocyanate mixture, resorcinol, pyrocatechol and hydroquinone mixture with ratio (0.35-0.58):(6.32-8.39):(0.5-0.9), sodium carbonate and water with the following component ratio, wt %: lignosulfonate 42.8-57.9, hydrophobisator 0.1-1.0, sodium thiosulfate and thiocyanate mixture12.92-16.44, resorcinol, pyrocatechol and hydroquinone mixture 6.34-8.9, sodium carbonate 16.6-25.5 and water - the remaining part. Invention is developed in dependent claim of invention formula.

EFFECT: increased diluting ability of initial technical lignosulfonates in additive composition to the level of superplasticisers with simultaneous increase of its permissible dosage in cement systems, as well as increased water and frost resistance.

2 cl, 2 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to production of building materials and compositions of crude mixtures for making bricks, which can be used to build low-rise buildings. The crude mixture for making bricks contains the following in wt %: sawdust 10.0-15.0; quartz sand 59.75-69.85; portland cement 20.0-25.0; sulphide-yeast wash 0.149-0.248; calcium chloride 0.001-0.002, with at water/cement ratio equal to 1.

EFFECT: high water resistance of the brick made from said mixture.

1 tbl

FIELD: construction.

SUBSTANCE: in a cold method for obtaining asphalt concrete of increased strength for repair and construction of road pavements using mineral material in the form of crushed stone, sand by their being mixed with cement and bituminous emulsion, with further application of the obtained asphalt-concrete mix onto the road base and its compaction, mixing is performed at addition to the above said cold mineral material for 100 of its wt % subsequently in 40-90 seconds of the next components, wt %: cement - 3.0-6.0, nanocomposite additive with particle size of 50-300 nm, mainly 80-160 nm, which contains the following, parts by weight: active silicic acid 0.01-3 and latex based on styrene, ester of acrylic acid, butadiene, acrylonitrile, acrylic or methacrylic acid, their mixtures 1 (in terms of a dry substance) 0.075-0.25, cationic bituminous emulsion (in terms of bitumen) 2.0-5.0.

EFFECT: saving of energy resources and improving strength of asphalt concrete.

4 tbl, 5 ex, 4 dwg

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