Raw mixture for production of heat-insulating products
SUBSTANCE: raw mixture contains the following components, pts. wt.: non-caking acid clay 58.0-61.0; expanded perlite ground to specific surface of 4500-5000 cm2/g 13.0-15.0; chalk stone 1.0-2.0; broken silicate glass ground to specific surface of 4500-5000 cm2/g 14.0-16.0; bentonite and/or kaolin 4.0-6.0; liquid potassium glass 4.0-6.0.
EFFECT: increase of product water-resisting property.
The invention relates to the building materials industry and related compounds of raw mixes for production of thermal insulation products. Known raw mixture that contains, mass%: clay acidic non-caking 30,0-50,0; expanded perlite 40,0-60,0; chalk 5,0-15,0 . The objective of the invention is to increase the water resistance of products obtained from raw mix. The technical result is achieved by the fact that the raw material mixture for production of thermal insulation products containing acidic clay non-reactive powder, expanded perlite, chalk, additionally contains ground up specific surface 4500-5000 cm 2 /g fight silicate glass, bentonite and/or kaolin, liquid potassium glass, in the following ratio of components, mass%: clay sour non-caking 58,0-61,0; ground up specific surface 4500-5000 cm 2 /g expanded perlite 13,0-15,0; chalk 1,0-2,0; ground up specific surface 4500-5000 cm 2 /g fight silicate glass 14,0-16,0; bentonite and/or kaolin 4,0-6,0; liquid potassium glass 4,0-6,0. The table shows the composition of the raw material mixture for production of heat insulation materials. Table Components Composition, wt.% 1 2 Clay sour non-caking 61,0 58,0 59,0 Ground to a specific surface 4500 cm 2 /g expanded perlite 13,0 1 14,0 Ground to a specific surface of 5000 cm 2 /g expanded perlite - 15,0 - Chalk 2,0 1,0 2,0 Ground to a specific surface 4500 cm 2 /g fight silicate (tare) glass 16,0 - 15,0 Ground to a specific surface of 5000 cm 2 /g fight silicate (sheet) glass - 14,0 - Bentonite 4,0 - 2,0 Kaolin - 6,0 3,0 Liquid potassium glass (density of 1.3-1.5 g/cm 3 , silica module 3,6-4) 4,0 6,0 5,0 Softening coefficient ~0,85 ~0,85 ~0,85 Components depending on the required quantities and mix. If necessary, add water to obtain a mixture with humidity 18-23%. From the prepared mixture plastic way molded products (blocks, slabs). The product is dried to a moisture content of not more than 6% and fired at a temperature of 1030-1070 C. Sources of information 1. SU 621661 A1, C04B 32/02, 1978. Raw mix for the manufacture of insulation products containing acidic clay non-reactive powder, expanded perlite, chalk, characterized in that it additionally contains a ground to specific surface 4500-5000 cm 2 /g fight silicate glass, bentonite and/or kaolin, liquid potassium glass at following ratio of components, mass%: clay sour non-caking 58,0-61,0; ground up specific surface 4500-5000 cm 2 /g expanded perlite 13,0-15,0; chalk 1,0-2,0; ground up specific surface 4500-5000 cm 2 /g fight silicate glass 14,0-16,0; bentonite and/or kaolin 4,0-6,0; liquid potassium glass 4,0-6,0.
SUBSTANCE: raw mixture for manufacture of foam concrete contains the following components, wt %: Portland cement 35.0-37.0, foaming agent PB-2000 0.25-0.35, TPP ash 15.65-20.25, crushed foamed glass with particle size of 5-10 mm 20.0-25.0, asbestos fibre cut into 5-15 mm pieces 1.0-1.5, and water 21.0-23.0.
EFFECT: improving heat resistance of foam concrete obtained from raw mixture.
SUBSTANCE: invention relates to construction materials, in particular to manufacturing products from ethynol perlite concrete, applied for heat insulation of heat pipelines of heat networks and for manufacturing heat-insulated pipes of full operational readiness with monolithic thermohydroinsulating protection. Ethynol perlite concrete, obtained from composition, which contains perlite gravel with filling agent from inert materials; as such used are dust-like asbestos in form of powder in amount 0.2 ppm, expanded clay aggregate dust in amount 0.2 ppm, and fly ash of thermal power stations in amount 0.2 ppm, and composite cement in form of ethynol enamel based on ethynol varnish in amount 1 ppm and plasticiser, represented by latex SKS-65 in amount 0.1 ppm, and as accelerator of composition polymerisation used is intensive ultraviolet radiation.
EFFECT: increased quality of ethyl perlite concrete due to reduction of water absorption, heat conductivity coefficient, increase of water resistance and acceleration of hardening.
SUBSTANCE: gypsum perlite contains a gypsum binder, such as a processed mechanically activated phosphogypsum ground to 5-40 mcm (active gypsum), hydrophobizated swollen sand, superplasticiser Melflux at the following ratio of components, wt %: active gypsum - 84.8-93.8%, hydrophobizated swollen perlite sand - 6-15%, superplasticiser - 0.2%.
EFFECT: improved heat insulation and strength properties at low prime cost.
FIELD: process engineering.
SUBSTANCE: invention relates to production of construction materials and can be used for fabrication of ceramic bricks, stones and blocks. Proposed method comprises preparation of foam-ceramic mix from clay stock, water, foaming agent, binding agent, drying, annealing and forming. Note here that, additionally, foaming agent PB-2007 is admixed as a plasticising agent while finished product ground to 1.25-5.0 mm fraction or perlite sand are used as binding additive. Then, obtained mix is poured in flat moulds and dried, first, at 30-35°C and, then at 50-56°C to make an integral blank to be withdrawn from the mould, annealed at 800-1600°C and formed to blocks.
EFFECT: higher heat- and noise-isolation properties, decreased weight.
SUBSTANCE: invention relates to construction materials, in particular to polystyrene concretes, used in heat-preserving protective structures of buildings and constructions. Heat-insulating constructive polystyrene concrete with density 225-350 kg/m3, is obtained from mixture, which contains Portland cement, water, complex air-involving and plasticising additive of multifunctional action, which represents balanced mixture in dry or liquid form, consisting of air-involving additive PO-01B based on products of oxidation of food industry wastes and plasticiser of polycarboxilate type or sulfonated product of polycondensation of melamine with formaldehyde with number of links in molecular chain equal 18-27 with weigh ratio: air-involving additive:plasticiser, equal 1:(0.25-0.5), and specific consumption of said complex additive 0.06-0.15 wt % of Portland cement weight, polystyrene foamed granulated (PFG) with volume content in polystyrene concrete - φ in the range 0.40-0.60, obtained after triple foaming of initial polystyrene beads with coarseness 0.7-1.0 mm and characterised by complex dimensionless index of PFG quality - n in the range 1.5-1.75, whose values are determined in the process of designing polystyrene concrete composition by formula: where K1 and K2 are coefficients, reflecting peculiarities of technology of PFG obtaining, values of which are respectively in the range1.1-1.3 and 8.0-10.8; db is the average diameter of initial polystyrene beads, mm; dav is average weighted diameter of PFG granules, mm;
EFFECT: creation of heat-insulating constructive polystyrene concrete with density 225-350 kg/m3 with optimal properties: increased strength and heat-insulating properties.
3 ex, 1 tbl
SUBSTANCE: heat-insulation structural masonry admixture based on a light filler contains, kg/m3: portland cement CEM1-42.5N 173-346, quartz sand from Razumenskoe deposit 700-1260, hollow microspheres of Novocherkasskaya regional power station 50-250, a water-retention additive Mecellose FMC 24502 0.1% of the portland cement mass, water - balance, besides, percentage content of light filler - specified microspheres - is given from the volume of sand.
EFFECT: reduced heat conductivity.
1 ex, 3 tbl
SUBSTANCE: crude mixture for making claydite gravel contains the following, wt %: montmorillonite clay 65.0-75.0, andesite powder 15.0-20.0, scrap sheet glass ground until passage through sieve No 014 10.0-15.0.
EFFECT: high strength of the claydite gravel.
SUBSTANCE: 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, wt %: portland cement 25-30; expanded clay gravel with particle size of 20-40 mm 13.8-19.2; haydite sand with particle size of less than 5 mm 30-35; saponified rosin 0.01-0.02; sodium ethylsiliconate 0.78-1.18; water 20-25.
EFFECT: high strength.
SUBSTANCE: invention relates to building materials and can be used for reduction of sound level and increase of heat insulation in residual, public and industrial buildings, mainly in constructions of floors and walls. Material contains granules, connected to each other with glue, with formation of porous structure.
EFFECT: application of claimed material results in increase of its vibroinsulating, sound-insulating and heat-insulating properties.
SUBSTANCE: concrete mixture includes, wt %: Portland cement 26-28, gravel with 20-40 mm fraction 38.2-38.35; clayite sand with fraction to 5 mm 10-14; molasses evaporated post-yeast grains 0.1-0.15; 10-20 mm long glass fibre 0.5-0.7; water 21-23.
EFFECT: increased strength.
FIELD: construction engineering; manufacture of building structures.
SUBSTANCE: proposed method includes preparation of polystyrene concrete mix from binder, foamed polystyrene and water, molding articles from this mixture and heat treatment. Prior to preparation of mixture, foamed polystyrene is subjected to foaming performed at two stages as minimum. At two stages as minimum. At first stage, polystyrene gravel at density of 12-30 kg/cu m is obtained. At subsequent stages its density is brought to 6-11 kg/cu m; polystyrene gravel may be obtained by grinding wastes of articles made from polystyrene to grain composition of fractions to 1-15 mm. Introduced additionally into mixture is air-entrapping additive hardening accelerator and water-reducing additive which are thinned with water. Articles are molded by placing the mixture in metal molds. Mixture is fed to each cell of metal mold by means of hose by forcing it from pneumatic concrete mixer by compressed air. After heat treatment, metal molds containing articles are delivered to demolding station where are subjected to vibration treatment for separation of articles from molds. Then, articles are removed from metal molds. Line proposed for realization of this method includes foaming unit, service bins and proportioners for foamed polystyrene, binder and water, at least one pneumatic concrete mixer for preparation of polystyrene mixture and molding and demolding stations. Proportioners for aqueous solution of hardening accelerator, air-entrapping additive and water-reducing additive, service reservoirs for air-entrapping additive, hardening accelerator and water-reducing additive, screw feeder for delivery of binder to proportioner, vibration table, metal molds with covers, pipe lines with shut-off cocks and swivel chutes, control console and hose. Proportioner is located under service bin forming single reservoir which may be divided by mechanical splitter. Pneumatic concrete mixer is provided with horizontal shaft at volume of 0.6 to 2 cu m. Metal mold is provided with sump having hinged sides, partitions, cargo-gripping mechanism and cover located on sump of cassette. Each cassette is made in form of platform formed by horizontal square sheet and four vertical sheets rigidly secured on horizontal sheet, shifted relative to center axes and interconnected in T-shaped pattern perpendicularly relative to each other forming four cells over perimeter of platform and central cell. Cells over perimeter of platform have three free faces. Cargo-gripping mechanism is located in central cell partitions are mounted between cassettes and are pinched by two vertical sheets. Cover is made in form of metal sheet pressed to upper faces of cells, partitions and sides. According to second version, metal mold has sump and at least one cell heat-insulated articles. Each cell is formed by bottom of sump and two z-shaped profiles clamped together and provided with changeable inserts placed between z-shaped profile. Each z-shaped profile has two side and one central webs. Side surfaces of all webs are perpendicular to plane formed by sump bottom. Changeable inserts are secured on side webs of z-shaped profiles. Each z-shaped profile forms one of subsequent cells by its one cell.
EFFECT: extended technological capabilities; increased productivity; improved quality and enhanced reliability.
FIELD: manufacture of building materials.
SUBSTANCE: invention concerns manufacture of articles for heat-retention of furnace units and power equipment operated at surface temperatures up to 1100°C. Invention provides charge mixture containing, wt %: swollen vermiculite 20-60, refractory clay or kaolin 37-55, electrofilter dust 1-20, chamotte fraction below 0.063 mm 1-30, and structure-forming polyelectrolyte 3-5 (above 100%). Charge is moistened to form mass, which is aged in closed space for at least 24 h, molded into crude article, dried to residual moisture at most 5%, and fired at 1000-1100°C. Aforesaid polyelectrolyte is characterized by having carboxyl, amide, nitrile, and ester groups in polymer molecule.
EFFECT: reduced air and fire shrinkage and service deformations, raised softening point, simplified manufacture, and achieved absence of anisotropy of physicochemical and thermal characteristics with extremely low heat-conduction values.
2 cl, 1 tbl, 4 ex
FIELD: manufacture of building materials.
SUBSTANCE: invention relates to manufacture of polystyrene-concrete parts for use in construction as wall and heat-insulating material. Manufacture of heat-insulation products comprises preparation of molding mix from Portland cement (60.0-65.6%), water, and granulated foamed polystyrene with loose density 10-20 kg/m3 (2.2-4.4%), molding, and heat treatment of products. Invention resides in that molding mix additionally includes microsilica (6.6-12.0%) and superplasticizer S-3 (0.6-0.66), starting mix Portland cement/microsilica/foamed polystyrene is first stirred for 2-3 min, then water containing superplasticizer is added, resulting mix is stirred for further 3-5 min and loaded into molding boxes. Molding involves vibrocompaction and pressing followed by unloading of products from molding boxes and heat treatment: 2 h at 15-25°C, 8 h at 40-60°C, and 1 h at 15-30°C.
EFFECT: reduced consumption of cement, improved placeability and moldability of mix, increased strength of products, and increased productivity.
FIELD: building industry, in particular raw mixtures for production of heat-insulating materials for heat insulating of roofing, building walls, floor, etc.
SUBSTANCE: claimed mixture contains (mass pts): expanded polystyrene foam granules 10-12,5; cement 100-170; and water 80-100; and additionally polymethylenenaphthalene sulfonate 0.8-0.85; and sodium sulfate 0.01-0.08, wherein said granules are obtained by surface treatment of polystyrene with aqueous solution of polymethylenenaphthalene sulfonate and sodium sulfate.
EFFECT: increased cement adhesion to polystyrene foam without application of toxic and expensive additives; decreased component number without losses of heat-insulating properties.
FIELD: building industry, in particular building materials.
SUBSTANCE: claimed method includes providing polystyrene/concrete mixture by blending of cement, sand, water, foamed polystyrene; formation by vibrocompaction; dismantling of forms and article conditioning. Plasticizer and pigment are additionally introduced into polystyrene/concrete mixture during blending. In formation step precursory vibrocompaction is carried out to produce compacted protective and ornamental cement/sand face layer with thickness not less than 0.3 mm. Then finished vibrocompaction under kentledge is carried out to accomplish desired geometrical sizes. Obtained article is hold in form under kentledge at 15-25°C for 24 h or more, and in total article is hold up to 5 days. Article back surface is heat treated to produce porosity in contact sites due to polystyrene volume contraction up to 10 % in contrast with original one.
EFFECT: article with controlled thickness of compacted protective and ornamental layer.
FIELD: manufacture of building materials.
SUBSTANCE: object of invention are special refractory concretes based on Portland cement and slag aggregates, which concretes can be used in manufacture of heat assemblies operated under prolonged high-temperature and sharp temperature gradient conditions. Concrete mix contains 16-22% Portland cement, 10-20% alumina hydrate in the form of production waste, 28-36% sand slag-pumice fraction up to 5-20 mm, broken slag fraction 5-20 mm, 0.5-1.5% super-plasticizer S-3, and water, said alumina hydrate being waste coming from synthetic rubber production or from radio component plant, namely from manufacture of electrolytic condensers in the form of aluminum foil etching waste.
EFFECT: increased density due to filled hollows in porous aggregate with alumina hydrate or reaction product thereof with lime releasing on hydration of clinker minerals, increased residual strength after firing at 800°C, and increased heat resistance.
FIELD: manufacture of porous sound-absorbing ceramic bricks, tiles or slabs possessing high sound-absorbing properties in wide range of frequencies.
SUBSTANCE: proposed porous sound-absorbing article is made from porous ceramic material with communicating pores at specific gravity of 0.5-1.0; for obtaining such material, 100-200 parts by weight of at least one sintered material is added to 100 parts by weight of pearlite at grain diameter of 0.50-2.0 mm; sintered materials are selected from group containing ash dust, wollastonite, chamotte, slag, quartz, lava, stones or clay as basic material, 10-20 parts by weight of inorganic binder; then, mixture is sintered; pearlite particles make material porous since pearlite particles get surrounded with basic material and binder after sintering; communicating pores are formed between contact surfaces of particles. Specification gives characteristics of versions of porous sound-absorbing ceramic article and method of its production.
EFFECT: enhanced efficiency of sound absorption in wide range of frequencies.
45 cl, 3 dwg, 3 ex
FIELD: manufacture of building materials and articles; light-weight structural insulating concrete.
SUBSTANCE: proposed light-weight concrete contains cement, hollow micro-spheres - component separated by reagentless floatation from ash-and-slag mixtures and water; it additionally contains silicon opal-cristobalite mineral - tripolite of the following fractional composition, %: 0.315 - 0.14 mm 27-31.1, 0.14-0.071 mm 30.1-33.2 lesser than 0.071 mm 32.9-39.7 at the following ratio of components, mass-%: cement, 24.9-29.3; tripolite, 6.8-14.2; micro-spheres, 34.8-41.1; the remainder being water.
EFFECT: reduced density and heat conductivity.
5 tbl, 1 ex
FIELD: building materials, in particular polystyrene-concrete foam articles.
SUBSTANCE: claimed method includes mixture forming in the next component ratio (mass %): Portland cement 81.0; granulated foamed polystyrene 4.0, wherein three parts thereof have granule diameter of 1-2 mm, and one part has granule diameter of 2-3 mm; plasticizing additive 0.5; air-entraining admixture 0.02; and balance: water. For mixture production 2/3 of Portland cement, both additives and 1/2 of tempering water are charged into mixer and agitated for 2-3 min. Foamed polystyrene having granule diameter of 1-2 mm, is added and agitated for 1-2 min; remained cement, foamed polystyrene having granule diameter of 2-3 mm, and remained water are added and agitated for 2-3 min. Mixture is placed into curb, floated and conditioned at 20°C for 8 hours. Finished articles are laid in stacks for storage or hauling.
EFFECT: building articles of increased heat insulating properties, improved constructive characteristics and decreased average density; simplified technology.
FIELD: building materials, in particular heat insulating article production.
SUBSTANCE: claimed composition contains (mass pts): green vermiculite 1-1.05; mixture of hydrogen peroxide and sulfuric acid in volume ratio of 3:1 1-2,20; and artificial porous additive, namely expanded perlite 1-1,20.
EFFECT: heat insulating articles of increased strength.
2 tbl, 12 ex