Composition for manufacture of expanded aggregate

FIELD: chemistry.

SUBSTANCE: invention relates to production of construction materials, specifically to production of water glass-based expanded aggregates, intended for manufacture of lightweight concrete, and fill insulation materials. Composition for manufacture of the expanded aggregate comprises as follows, wt %: sodium water glass with a density of 1.41 g/cm3 50-75, sodium chloride, ground to a particle size below 0.3 mm 1-3, burnt rock, ground to a particle size below 0.14 mm 12-34, drill cuttings, ground to a particle size below 0.14 mm, and oxides, wt %: SiO2 - 26.2; Al2O3 - 4.5; Fe2O3 - 5.6; CaO - 28.3; MgO - 1.2; R2O - 0.8; ignition loss - 33.4, 10-15.

EFFECT: composition for manufacture of expanded aggregates, with improved compression strength and softening temperature, industrial waste recycling.

3 tbl

 



 

Same patents:

FIELD: construction.

SUBSTANCE: raw mixture for manufacture of expanded clay contains the following, wt %: brick clay 96.5-98.0, kaolin 0.5-1.0, liquid glass with silica modulus of 3.2-4 and density of 1300-1500 kg/m3 1.5-2.5.

EFFECT: increasing expanded clay strength.

1 tbl

FIELD: construction.

SUBSTANCE: composition for production of porous aggregate comprises, wt %: sodium water-glass with density of 1.41 g / cm3 50-75, sodium chloride, milled to size less than 0.3 mm 1-3, shale ash, containing, wt %: SiO2 - 30.8, Al2O3 - 13.8, Fe2O3 - 7.2, MgO - 1.4, CaO - 15.2, R2O - 4.2, percentage point - 27.4, 22-49.

EFFECT: improved strength during compression and softening factor of porous aggregate, industrial waste utilisation.

4 tbl

FIELD: construction.

SUBSTANCE: composition for production of porous aggregate comprises, wt %: sodium water-glass with density of 1.41 g/cm3 50-75, sodium chloride, milled to size less than 0.3 mm, 1-3, slaty ash, ground to pass through the sieve of 0.14 mm and containing, wt %: SiO2 - 22.4; Al2O3 - 12.2; Fe2O3 - 7.8; MgO - 1.3; CaO - 17.3; R2O - 5.2; percentage point - 33.8, 22-49.

EFFECT: improved strength during compression and softening factor of porous aggregate, industrial waste utilisation.

4 tbl

FIELD: construction.

SUBSTANCE: in a manufacturing method of artificial porous filler, which involves layer-by-layer laying of granulated material and its sintering in layers, for formation of at least two layers with thickness of 10-15 mm each, broken glass with particle size of 3-5 mm and granulated blast-furnace slag with particle size of 0.6-5 mm is used as granulated material; after that, it is sintered at the temperature of 900-1050C, cooled, and subject to crushing and fractioning.

EFFECT: simpler manufacturing technology of porous filler at provision of its freeze resistance.

2 ex

FIELD: metallurgy.

SUBSTANCE: production of pellets from dressing tailings is effects at heating of wastes to melting point I the zone of microwave field penetration at frequency of 2450 MHz. Initial stock represents tailings of dressing factories of gold extraction containing the catalytically active metals Cu, Al, Ti, Zn, Zr.

EFFECT: decreased environmental contamination, production of pellets to be used in various catalytic systems and as heat insulators.

2 cl, 1 ex

FIELD: chemistry.

SUBSTANCE: raw material mixture for porous concrete contains, wt %: Portland cement 39.0-56.4, TPP fly ash - 4 of Omsk city 8.5-30.0, building gypsum GP-6 0.28-0.41, aluminium paste 0.06-0.1, detergent powder "Zifa" 0.001-0.002, sodium hydroxide 0.41-0.6, calcium chloride 0.21-0.26, 7-12 mm long polyethylene fibres with diameter 0.33-0.38 mcm 0.06-0.07, water 29.978-33.659.

EFFECT: increased strength and frost resistance, reduction of heat conductivity of porous concrete.

1 ex, 2 tbl

FIELD: construction.

SUBSTANCE: charge for production of a porous filler contains, wt %: brick clay 76.0-79.5, quartz sand 16.0-18.0, schungite ground until complete passage via a mesh with hole size of 2.5 mm, 1.0-1.5, pyrophyllite ground to complete passage via a mesh with particle size 2.5 mm, 3.5-4.5.

EFFECT: increased strength of a porous filler.

1 tbl

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil processing industry and can be used at processing of oil or heavy hydrocarbon compounds to obtain a volumetric carbon frame for composite materials. In compliance with the proposed method, a formwork is prepared, the cross section of which determines a profile of the carbon frame, and mass of a solid-state melting catalyst - blowing agent is formed inside the formwork by means of individual components having either a regular or irregular geometrical shape; besides, laying of the individual components is performed so that an inter-rib gap forms continuous inter-rib formwork channels along ribs and tops of the laid bodies. A raw mixture is prepared by addition to heavy hydrocarbon compounds of a cocatalyst consisting of a mixture of light hydrocarbons; the inter-rib formwork channels are filled inside the formwork in the body of the mass of the solid-state melting catalyst - blowing agent with the raw mixture; the formwork is fully placed into a melt of a catalytic mixture having the temperature of 200-300C, and the formwork is exposed in the melt of the catalytic mixture till melting of the mass of the solid-state melting catalyst - blowing agent and formation of a volumetric carbon frame. Then, the formwork is removed together with the obtained volumetric carbon frame and the latter is cleaned from residues of the liquid melt of the catalytic mixture. As a melting catalyst - blowing agent, a mixture of metal chlorides is used, which has a melting temperature of 180-200C.

EFFECT: simpler production of a carbon frame owing to excluding a carbon fibre production stage.

16 cl, 3 tbl, 4 dwg

FIELD: machine building.

SUBSTANCE: deposition is performed by forming of monolayers at the expense of collisions of deposited particles of ceramic material with the surface of mandrel at a minimum angle 45, except for zero. Each monolayer is formed with the maximum thickness 0.04 mm. The porosity is formed as through one, pores are parallel to each other and slant to working surface of an article with channel pores (2) with variable cross-section, from which the least is from the side of output of filtered medium. The geometry of a pore space increases penetrability of an article more than twice.

EFFECT: creation of conditions for obtaining of open channel porosity in a body of an article.

5 cl, 4 dwg, 2 tbl, 11 ex

FIELD: process engineering.

SUBSTANCE: invention relates to powder metallurgy, particularly, to charge compositions for production of porous permeable catalytic material by self-propagating high-temperature synthesis and can be used for production of filter elements. Charge with loparite contains the following components in wt %: iron scale 47.5-47.8, chromium oxide (III) 10.5-11.5, chromium 5.2-5.6, nickel 5.5-6.0, aluminium 12.3-12.5, bastnaesite ore 15-17, copper 1.6-2.0. Said porous permeable material ensures high-quality catalytic cleaning of ICE exhaust gases.

EFFECT: higher resistance to dynamic and static loads.

1 tbl, 1 ex

FIELD: construction.

SUBSTANCE: raw mixture for manufacture of expanded clay contains the following, wt %: brick clay 96.5-98.0, kaolin 0.5-1.0, liquid glass with silica modulus of 3.2-4 and density of 1300-1500 kg/m3 1.5-2.5.

EFFECT: increasing expanded clay strength.

1 tbl

FIELD: construction.

SUBSTANCE: composition for production of porous aggregate comprises, wt %: sodium water-glass with density of 1.41 g / cm3 50-75, sodium chloride, milled to size less than 0.3 mm 1-3, shale ash, containing, wt %: SiO2 - 30.8, Al2O3 - 13.8, Fe2O3 - 7.2, MgO - 1.4, CaO - 15.2, R2O - 4.2, percentage point - 27.4, 22-49.

EFFECT: improved strength during compression and softening factor of porous aggregate, industrial waste utilisation.

4 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to production of porous filling agents for concretes. Charge for production of porous filling agent contains, wt %: montmorillonite clay 87.0-87.5, coal, milled to specific surface 2500-3000 cm2/g, blastfurnace slag, milled to specific surface 2500-3000 cm2/g 3.0-3.5; quartz sand 4.0-6.0, milled to specific surface 2500-3000 cm2/g, halite 0.5-1.0, soda ash 0.3-0.5.

EFFECT: increase frost-resistance of porous filling agent, obtained from charge.

1 tbl

FIELD: construction.

SUBSTANCE: composition for production of porous aggregate comprises, wt %: sodium water-glass with density of 1.41 g/cm3 50-75, sodium chloride, milled to size less than 0.3 mm, 1-3, slaty ash, ground to pass through the sieve of 0.14 mm and containing, wt %: SiO2 - 22.4; Al2O3 - 12.2; Fe2O3 - 7.8; MgO - 1.3; CaO - 17.3; R2O - 5.2; percentage point - 33.8, 22-49.

EFFECT: improved strength during compression and softening factor of porous aggregate, industrial waste utilisation.

4 tbl

FIELD: construction.

SUBSTANCE: composition for making porous filler contains the following, wt %: sodium liquid glass with density of 1.41 g/cm3 50-75, sodium chloride crushed to the size of less than 0.3 mm, 1-3, and aluminium-containing nanosized slag of caustic etch of aluminium 22-49.

EFFECT: increasing compressive strength and softening factor of porous filler; utilisation of industrial waste.

3 tbl

FIELD: construction.

SUBSTANCE: raw mix for expanded clay production includes, wt %: brick clay 96.0-97.5, bentonite 0.5-1.0, dry peat 0.5-1.5, phosphorite 1.5-2.5.

EFFECT: increase of strength of expanded clay.

1 tbl

FIELD: construction.

SUBSTANCE: charge for production of a porous filler contains, wt %: brick clay 83.5-87.5, quartz sand 10.0-14.0, schungite ground until complete passage via a mesh with hole size of 5 mm, 1.0-1.5, peat crumb sifted via a mesh with particle size 5 mm, 1.0-1.5.

EFFECT: increased strength of a porous filler.

1 tbl

FIELD: construction.

SUBSTANCE: charge for production of a porous filler contains, wt %: brick clay 76.0-79.5, quartz sand 16.0-18.0, schungite ground until complete passage via a mesh with hole size of 2.5 mm, 1.0-1.5, pyrophyllite ground to complete passage via a mesh with particle size 2.5 mm, 3.5-4.5.

EFFECT: increased strength of a porous filler.

1 tbl

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

FIELD: chemistry.

SUBSTANCE: charge for production of porous filler contains, wt %: montmorillonite clay 87.0-90.0, milled for passage through mesh No 0.63 coal 1.0-1.5, quartz sand 7.0-9.0, borax 1.5-3.0.

EFFECT: increased strength of porous filler, obtained from charge.

1 tbl

FIELD: construction.

SUBSTANCE: composition for production of porous aggregate comprises, wt %: sodium water-glass with density of 1.41 g / cm3 50-75, sodium chloride, milled to size less than 0.3 mm 1-3, shale ash, containing, wt %: SiO2 - 30.8, Al2O3 - 13.8, Fe2O3 - 7.2, MgO - 1.4, CaO - 15.2, R2O - 4.2, percentage point - 27.4, 22-49.

EFFECT: improved strength during compression and softening factor of porous aggregate, industrial waste utilisation.

4 tbl

Up!