Concrete mixture

FIELD: chemistry.

SUBSTANCE: concrete mixture contains, wt %: portland cement 22.0-24.0; haydite with grain size of 20-40 mm 22.0-27.5; haydite sand 6.0-8.0; grade 6 asbestos 1.0-2.0; rock flour from limestone or marble 20.0-24.0; water 18.0-20.0.

EFFECT: high water-resistance.

1 tbl

 

CONCRETE MIX

The invention relates to the construction materials industry, in particular, to the manufacture of concrete building blocks for low-rise construction.

Famous concrete mixture containing the wt.%: cement 21,3-24,2; clay 57,6-64,0; clay sand 8,6-17,8; expanded perlite sand 3,2-4,6; saponified rosin 0,001-0,0012; water [1].

The objective of the invention is to increase the water resistance of the products derived from the concrete mixture.

The technical result is achieved by the fact that the concrete mix including Portland cement, lightweight aggregate, expanded clay sand, water, additionally contains asbestos 6th grade and stone flour from limestone or marble in the following ratio, wt.%: Portland 22,0-24,0; expanded clay fraction 20-40 mm 22,0-27,5; clay sand 6,0-8,0; asbestos 6th grade 1,0-2,0; stone powder made from limestone or marble 20,0-24,0; water 18,0-20,0.

The composition of concrete mixtures are given in the table.

The components are metered in the desired quantities and mix. Prepared concrete mixture is placed in a metal (pre-lubricated with mineral oil) forms and allowed to cure. The strength of products made of concrete mixtures will be (at the age of 28 days) 5-6 MPa. Products water-resistant (coefficient of softening ~0,85).

The source of information

1. SU 127660, 1986.

Concrete mix including Portland cement, lightweight aggregate, expanded clay sand, water, characterized in that it further contains asbestos 6th grade and stone flour from limestone or marble in the following ratio, wt.%: Portland 22,0-24,0; expanded clay fraction 20-40 mm 22,0-27,5; clay sand 6,0-8,0; asbestos 6th grade 1,0-2,0; stone powder made from limestone or marble 20,0-24,0; water 18,0-20,0.



 

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FIELD: chemistry.

SUBSTANCE: group of inventions relates to dry concrete or mortar composition, containing porous granules and to concrete or mortar, manufactured from said composition. Dry concrete or mortar composition, containing particles-cores, to the surfaces of which particle of hydraulic binding substance are fixed, and separate particles of hydraulic binding substance, particles-cores consist of inert or pozzolanic material and together with binding substance attached to them form porous granules, which, in their turn, are fixed to the surface of dry filling agent. Concrete or mortar, manufactured from said dry composition, mixed with water, is described. Invention is developed in dependent items of the invention formula.

EFFECT: increase of strength and fire resistance of concrete, obtained from claimed dry composition.

25 cl, 2 ex

FIELD: construction.

SUBSTANCE: raw mix for manufacturing of heat insulation foam concrete contains, wt %: portland cement or slag portland cement 24.0-26.0, swollen perlite sand 40.4-44.65, air entering extraction-colophony resin 0.13-0.17, carboxymethylcellulose 0.13-0.17, superplasticiser S-3 1.0-1.2, silica gel 0.05-0.1, water 30.0-32.0.

EFFECT: reduced cement consumption without loss of foam concrete strength.

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FIELD: construction.

SUBSTANCE: charge for production of a porous filler contains, wt %: montmorillonite clay ground to powder condition 85.0-90.0, glauconite ground to powder condition 10.0-15.0.

EFFECT: increased strength of a porous filler produced from charge.

1 tbl

Concrete mixture // 2537741

FIELD: chemistry.

SUBSTANCE: concrete mixture contains, wt %: portland cement 24.0-26.0, expanded clay with particle size of 20-40 mm 10.0-15.0, haydite sand 41.4-47.1, superplasticiser S-3 1.0-1.5, sodium ethyl siliconate or sodium methyl siliconate 1.0-1.5, lavsan fibre cut into 10-20 mm pieces 0.1-0.15, water 15.0-17.0.

EFFECT: high strength of articles made from the concrete mixture.

1 tbl

Concrete mixture // 2537733

FIELD: chemistry.

SUBSTANCE: concrete mixture, which includes portland cement, expanded clay, haydite sand, water, further contains asbestos of 6-7 types, which is fluffed up in advance, gypsum binder, sodium methyl siliconate or sodium ethyl siliconate, with the following ratio of components, wt %: portland cement 26.0-30.0; expanded clay with particle size of 20-40 mm 46.0-48.0; haydite sand 5.0-8.5; asbestos of 6-7 types, which is fluffed up in advance, 0.5-1.0; gypsum binder 0.5-1.0; sodium methyl siliconate or sodium ethyl siliconate1.0-1.5; water 15.0-17.0.

EFFECT: high strength.

1 tbl

Concrete mixture // 2536535

FIELD: chemistry.

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EFFECT: obtaining concrete with higher strength and low density.

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Ceramic mass // 2531417

FIELD: chemistry.

SUBSTANCE: invention relates to the production of building materials and products, in particular to wall ceramic products, and can be applied in the production of ceramic bricks and stones. A ceramic mass includes easily fusible clay and carbonate-silicon zeolite-containing rock of a mixed mineral composition and flotation wastes of coal washing - coal slurries, and carbonate-silicon zeolite-containing rock is applied with a degree of milling less than 1 mm, with the following component ratio, wt %: easily fusible clay - 60-75; carbonate-silicon zeolite-containing rock - 20-25; flotation wastes of coal washing - 5-15.

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1 ex, 4 tbl

FIELD: construction.

SUBSTANCE: method for producing lightweight ceramic heat-insulating building material, comprising mixture of pre-treated silica-containing component and alkaline component, homogenization of raw mixture, drying of the granulated raw mixture, grinding of dried granules and firing in metal moulds. At that, the preliminary treatment of silica-containing component is carried out at stone-separating rolls in order to remove strong impurities and activate the silicon dioxide, in the drying apparatus to achieve the humidity of 19-25% and in grinding device in order to achieve the maximum particle size of 1 mm. Diatomite o tripoli and/or flask, containing the active silicon dioxide is used as silica-containing component, mixture of caustic soda and soda ash in the ratio of 0.5-0.8/1 is used as alkali component. Mixing of silica-containing component and alkaline component is carried out in the mixer of periodic action, providing the content of mass fraction in dry raw mixture of caustic soda of 6-14% and soda ash of 6-15%. Homogenization of raw mixture is carried out by treatment in strew press with filtering grid with size of cells of 8-25 mm, and drying of granular raw material mixture is carried out in dryer drum until the humidity of 5-7% is achieved. Grinding of dried granules is performed until the achievement of maximum particle size of 3 mm, and firing of silicate mixture, obtained as a result of grinding, is carried out in metal moulds in oven by raising the temperature up to 650°C with speed of 100-120°C/hour, and up to maximum of 680-800°C - with speed of 15-25°C/hour with subsequent isothermal exposure at maximum temperature during 1-3 hours, cooling from the maximum temperature up to 600°C is carried out with speed of 30-50°C/hour and from 600 to 50°C - with speed of 50-60°C/hour.

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4 cl, 5 ex, 3 tbl, 1 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to production of construction materials, particularly, expanded-clay concrete to be used for production of reinforced concrete articles for building blocks. Proposed method comprises activation of 70% of tempering water by quick-action Portland cement and plasticising additive UP-4 in concrete mixer at 15 rpm for 1 min to get homogeneous suspension. Tempering water remainder is mixed with crushed haydite gravel, haydite and quartz sand with pre-activated tempering water for 0.5 minutes. Obtained haydite mix is subjected to two-step heat treatment at 60°C in summer for 5 hours, in winter for 8 hours. Then, it is treated in secondary heat treatment chamber at 40°C for 4 hours.

EFFECT: better placeability, higher strength, accelerated production.

2 tbl

Concrete mixture // 2543763

FIELD: construction.

SUBSTANCE: concrete mixture comprises, pts. wt.: Portland cement - 1; marble aggregate fraction 2-8 mm. or granite chips of fraction 2-8 mm - 1-1.5; 3% hydrogen peroxide solution - 0.01-0.02; quartz sand - 1-1.5, at water-cement ratio of 0.6-0.65.

EFFECT: increase of strength.

1 tbl

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EFFECT: improved adhesion properties, expansion of raw base due to usage of baked ceramics, improved environment, lower prime cost.

4 cl

FIELD: construction.

SUBSTANCE: dry construction mix includes a binder, a mineral filler and modifying additives and additionally contains ground baked ceramics at the following ratio of mixture components, wt %: binder 30-45, ground baked ceramics 10-30, cellulose ether 0.05-0.1, redispersed powder 0.55-1.0, air entering agent up to 0.2, setting accelerator up to 1.0, water-repellent agent 0.4-0.8, antibacterial additive up to 0.2, pigment up to 5.0, mineral filler - balance.

EFFECT: reduced tear, expanded raw base, improvement environment and reduced prime cost of the produced dry mix due to usage of baked ceramics.

5 cl

Concrete mix // 2540984

FIELD: construction.

SUBSTANCE: concrete mix includes, wt %: portland cement 20.0-24.0; fine filler 58.78-61.24; polyvinyl chips 0.6-1.2; synthetic fibre with length of 5-25 mm 0.06-0.12; water 16.5-17.5.

EFFECT: increased strength of concrete.

1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to industry of building materials and can be used for manufacturing self-levelling rapidly hardening cast products and constructions of self-levelling floor type in industrial and civil buildings, trade halls and gyms, car parkings and garages. Dry composition for creation of self-levelling rapidly hardening liquid floors, including gypsum binding agent, superplasticiser and activator of hardening, contains mixture of Portland cement, aluminate cement and gypsum binding agent - calcium α-semi-hydrate - as binding base, polyethyleneglycol and copolymer vinylacetate-ethylene as superplasticiser, and highly disperse silicon dioxide with specific surface 6000-9000 cm2/g as hardening activator with the following ratio of components, wt %: Portland cement - 8.4-15.6; aluminate cement - 12.8-23.4; calcium sulphate α-semi-hydrate - 4.5-10.2; polyethylene glycol - 0.8-3.9; vinylacetate-ethylene - 3.0-4.6; highly disperse silicon dioxide with specific surface 6000-9000 cm2/g - 20.4-27.0; filler the remaining part.

EFFECT: increased rate of gaining strength by solidified composition at early stages (1-7 days) and increased strength in 28-day with simultaneous preservation of exploitation and aesthetic properties of obtained composite material.

5 cl 6 ex 1 tbl

Dry building mix // 2540176

FIELD: construction.

SUBSTANCE: dry building mix including sand, lime, Portland cement, fillers based on silicic rocks includes binding gaize being overburden rock of Pershinskoye minefield of quartz porphyry of Dalmatovsky District of Kurgan Region, or similar gaize with content of hydrated silicone dioxide of at least 70% and has the following component ratio (parts by weight): sand - 240±5, gaize - 35±5, lime - 25±5, Portland cement of M400 grade - 30±5 - for masonry mortars with compressive strength of up to 250 kg/cm2; component ratio (parts by weight) is as follows: sand - 195±5, gaize - 30±5, lime - 15±5, Portland cement of M400 grade - 20±5 - for masonry and finishing mortars with compressive strength of up to 161 kg/cm2; component ratio of finishing mortars is as follows: sand - 40%, lime - 30%, gaize - 30% (Portland cement is not included) with compressive strength of up to 77 kgf/cm2; it can also contain lime-containing wastes of different productions and plasticizing agents or other functional additives.

EFFECT: enlarging the scope of application of a mix and improving its qualitative characteristics.

3 cl

FIELD: chemistry.

SUBSTANCE: invention relates to raw material mixture for concrete production and can be applied in industry of building materials, in particular, in manufacturing products from concretes. Raw material mixture for concrete production contains, wt %: Portland cement 24-26; ash of coal burning 71.5-73.5; polyaminotriazole fibre cut into 5-15 mm long segments 1-1.5; sodium methylsiliconate 1-1.5, with water-cement ratio 0.45-0.5.

EFFECT: increased concrete strength.

1 tbl

FIELD: chemistry.

SUBSTANCE: crude mixture for making wall blocks contains the following, wt %: portland cement 26.0-30.0; quartz sand 66.8-70.9; spent car tyres crushed and sieved through sieve N2.5 1.0-1.5; asbestos 1.0-1.5; gypsum binder 0.4-0.6; dibutyl phthalate-plasticised polyvinyl acetate dispersion 0.1-0.2, with water to cement ratio of 0.5-0.55.

EFFECT: obtaining high-strength wall blocks.

1 tbl

Concrete mixture // 2537733

FIELD: chemistry.

SUBSTANCE: concrete mixture, which includes portland cement, expanded clay, haydite sand, water, further contains asbestos of 6-7 types, which is fluffed up in advance, gypsum binder, sodium methyl siliconate or sodium ethyl siliconate, with the following ratio of components, wt %: portland cement 26.0-30.0; expanded clay with particle size of 20-40 mm 46.0-48.0; haydite sand 5.0-8.5; asbestos of 6-7 types, which is fluffed up in advance, 0.5-1.0; gypsum binder 0.5-1.0; sodium methyl siliconate or sodium ethyl siliconate1.0-1.5; water 15.0-17.0.

EFFECT: high strength.

1 tbl

Concrete mixture // 2537731

FIELD: chemistry.

SUBSTANCE: concrete mixture includes, pts.wt: white cement 1, crushed marble with particle size of 2-8 mm 1-1.5, glass fibre with length of 3-7 mm 0.1-0.15, sodium ethyl siliconate 0.1-0.15, with water to cement ratio of 0.5-0.55.

EFFECT: high strength.

1 tbl

Concrete mixture // 2543763

FIELD: construction.

SUBSTANCE: concrete mixture comprises, pts. wt.: Portland cement - 1; marble aggregate fraction 2-8 mm. or granite chips of fraction 2-8 mm - 1-1.5; 3% hydrogen peroxide solution - 0.01-0.02; quartz sand - 1-1.5, at water-cement ratio of 0.6-0.65.

EFFECT: increase of strength.

1 tbl

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