Raw material mixture for obtaining artificial rock
SUBSTANCE: raw material mixture for obtaining artificial rock contains, wt %: Portland cement 26-30; quartz sand 47.3-55.85; water 16-20; fibrous metalloceramics 2.0-2.5; technical lignosulfonate LST 0.15-0.2.
EFFECT: increased strength.
The invention relates to the construction materials industry.
Famous raw mix for the production of artificial rocks, including, wt.%: cement (Portland cement) 25-30; flour and sand on the basis of calcium carbonate to 55; metal oxides (iron, chromium, lead, mercury) 2-10; hydroxides of metals (iron, chromium, lead, mercury) 2-12; calcium silicates 2-3; silicides carbon (silicon carbide) of 0.1 to 0.6; fluorine-silicate 6; sulfides of iron and copper 0,4-0,8; oxalic acid 0.3 to 0.5; water 10-23 .
The objective of the invention is to increase the strength of the artificial rocks are derived from the raw mix.
The technical result is achieved by the fact that the raw mix for the production of artificial rocks, including Portland cement, sand-based calcium carbonate, water, further comprises a fibrous cermets and technical lignosulphonate lsls in the following ratio, wt.%: Portland 26-30; quartz sand 47,3-55,85; water 16-20; fibrous ceramics 2.0 to 2.5; technical lignosulphonate LST of 0.15-0.2.
Fibrous metal based ceramic material consisting of pieces of thin metal fibers in the form of a wire with a diameter of not more than 50-70 microns and a length of 3-10 mm
The composition of the raw mix for artificial rocks are given in the table.
|Portland cement (500 M)||26||30|
|Fine quartz sand||55,85||47,3|
|Technical lignosulphonate LST||0,15||0,2|
Prepare, dispense and mix the raw materials. Cooked with a mixture of metal fill shapes, maintain the mixture in the form before hardening at a temperature of 20-25°C, and then the product is extracted from forms. The compressive strength of artificial material obtained from a raw mixture, at the age of 28 days. will be ~12 MPa.
The source of information
1. Patent Poland No. 268011, C04B, 1990.
Raw mix for the production of artificial rocks, including Portland cement, sand-based calcium carbonate, water, characterized in that it further comprises fibrous cermets and technical lignosulphonate LST paragraph and the following ratio of components, wt.%: Portland 26-30; quartz sand 47,3-55,85; water 16-20; fibrous ceramics 2.0 to 2.5; technical lignosulphonate LST of 0.15-0.2.
SUBSTANCE: charge for obtaining a decorative-facing material includes, wt %: milled glass 50.0-55.0; milled tuff 20.0-25.0; liquid glass 10.0-15.0; clay 10.0-15.0.
EFFECT: increased frost resistance of the materials.
SUBSTANCE: invention relates to preparations used for increasing water resistance of concrete, namely to elaboration of novel concrete-colmating (imperforating concrete pores) composition. In basic version composition represents mixture of salts, formed by metals from the group: sodium, potassium, calcium, aluminium, and acids from the group: nitric, formic, sulfuric, carbonic, with the following ion ratio (ion weight in composition, g)/(100 g of composition): sodium 5.6-32, calcium 0.4-17.2, potassium 1.5-27.2, aluminium 0.5-7.6, nitrate 4.1-62.1, formiate 0.6-29.7, sulfate 10.3-54.7, carbonate 1.1-29.7, as well as complex-forming additives (such as, for instance, carbamide, nitryltriacetic acid, imino-N,N-diacetic-N-methylene phosphonic acid; glycin-N,N-di(methylene phosphonic) acid, iminodi(methylene phosphonic) acid; diaminopropanol- N,N,N',N'-tetraacetic acid; 2-hydroxypropylene diamine- N,N,N',N'-tetra(methylene phosphonic) acid; 2,3-dihydrobutylene-1,4-diamine- N,N,N',N'-tetra(methylene phosphonic) acid; 2,3-dihydroxybutylene-1,4-diamine- N,N,N',N'-tetraacetic acid; nitryl-tri(methylene phosphonic) acid; 1-hydroxyethylene diphosphonic acid; ethylenediamin- N,N,N',N'- tetra(methylene phosphonic) acid; ethylenediamine-N,N,N',N'- tetraacetic acid; in amount not more than 20% of colmating composition weight.
EFFECT: extension of arsenal of preparations, used to increase concrete water resistance.
5 cl, 3 tbl
SUBSTANCE: in the method to manufacture wood concrete items with production of a base on their surface for plastering, providing for preparation and dosing of a hydraulic binder, ground cane stems, water, mixing of components, moulding of items with vibration, hardening, moulding with vibration is carried out so that cane stems cut into sections with length of 4-6 cm are located near the surface of the items, with one end staying in the mix, and with the other one - protruding outside and forming a base for application of plaster.
EFFECT: higher convenience of plaster application onto surface of items.
SUBSTANCE: additive comprises the following components, wt %: microorganisms of Leuconostoc mesenteroides type cultivated on a synthetic nutrient medium 0.5-2.7; microquartz 97.3-99.5.
EFFECT: increased mobility of a construction mix and concrete strength.
SUBSTANCE: invention relates to the industry of building materials and can be used in manufacturing products in civil and industrial construction, monolithic construction and for erection of special-purpose structures. The high-strength light concrete made from a concrete mixture contains portland cement, filler, a plasticiser, water, a mineral part consisting of microsilica with average particle size of 0.01-1 mcm, rock flour - a product of grinding quartz sand with specific surface area of 700-800 m2/kg and quartz sand with grain size of 0.16-0.63 mm, with the following ratio of components, wt %: portland cement 33.8-53.0, microsilica 4.77-13.8, rock flour 1.5-11.9, quartz sand 5.1…32.2 , microspheres 4.3-19.27, plasticiser 0.3-0.48, water - the balance.
EFFECT: obtaining concrete with high specific strength.
SUBSTANCE: invention relates to method of manufacturing fast setting light-weight cementing composition with improved compressive strength for building products such as panels. Method of obtaining light-weight cementing mixture, which has improved compressive strength and resistance to water, includes mixing water, cementing reacting powder, alkali metal salt of citric acid as set accelerator and light-weight filling agent, where weight ratio of water to reacting powder constitutes approximately 0.17-0.35:1.0, reacting powder includes 75-100 wt % of sol dust, which contains at least 50 wt % of fly ash of class C and 0-25 wt % of hydraulic cement and/or gypsum, setting of cementing mixture being achieved within from 4 to 6 minutes of composition mixing without addition of set retarder. Invention also deals with composition for obtaining light-weight cement panel.
EFFECT: obtaining light-weight cementing mixture, which has improved compressive strength and stability.
10 cl, 9 dwg, 9 tbl
SUBSTANCE: invention relates to a mixture of at least one polyol and at least one cyclohexane polycarboxylic acid derivative for reducing or minimising the dust emission when handling pulverulent construction chemical products, a method for preparing pulverulent construction chemical products and hydraulically setting materials containing the mixture according to the invention. The invention is developed in subclaims.
EFFECT: high efficiency of dust removal.
SUBSTANCE: invention relates to anchor for submersing anchoring underwater research hardware at bottom. Proposed anchor consists of flat self-breakable concrete body with central bore to accommodate underwater instruments retention and release. Note here that said body is made from raw stock of the following composition, in wt %: Portland cement - 26.0-56.0, high-alumina cement - 0.6-2.4, semiaquatic gypsum - 3.0-6.0, quartz sand making the rest, water for tempering to solid water ratio - 0.1-0.18. Note here that product of magnitudes of semiaquatic gypsum and high-alumina cement is selected, preferably, equal to 1.8-3.5. Invention is developed in dependent claims.
EFFECT: anchor of nonpolluting materials with self-controlled destruction in sea and sweet water.
3 cl, 16 dwg, 10 tbl
SUBSTANCE: decorative facing material contains, wt %: crushed sheet glass 75.0-77.0; ground tuff 18.0-19.0; liquid potassium glass 5.0-6.0.
EFFECT: high frost resistance of the decorative facing material.
SUBSTANCE: raw material mixture for natural stone imitation includes, wt %: Portland cement 26.0-30.0; sifted through No5 net carbonate sand 33.1-35.9; milled and sifted through No014 net broken ceramic products 8.0-10.0; lignosulfonate technical 0.2-0.3; sodium methylsiliconate 0.6-0.9; sienna 1.0-1.4; mummy 1.6-2.0; water 16.0-18.0.
EFFECT: increased strength of stone which imitates natural one.
SUBSTANCE: polymer binding agent contains polyester resin based on polyethyleneglycol maleate phthalate, a hardening agent - cobalt naphthenate, and as a hardening initiating agent - methylethylketone peroxide in a dimethyl phtalate solution, at the following component ratio (wt %): polyester resin based on polyethyleneglycol maleate phthalate 95.7-97.48, cobalt naphthenate 0.75-1.75, methylethylketone peroxide in dimethyl phtalate is the rest.
EFFECT: increasing strength properties of a polymer binding agent and polymer concretes on its basis.
SUBSTANCE: invention relates to a method of obtaining ampholytic surface-active substances on the basis of a protein-containing raw material and can be used in the process of production of foam-concrete and foam-concrete constructions. In the method of obtaining a foam-generator for the production of foam-concrete and foam-concrete constructions, including the hydrolysis of the protein-containing raw material in the presence of calcium hydroxide, calcium hydroxide is formed, when calcium oxide is introduced in a hydrolysed reaction mixture, the hydrolysis process is carried out in one stage in a reactor-hydrolyser, provided with high-speed stirrer and an external circular loop with a pump for 5-9 hours at a temperature of 110-132°C with the weight ratio of initial ingredients "feather wastes:water:calcium oxide", equal to 100 : (350-400) : (3.5-3.7), with pH of the lime-feather mass at the beginning of hydrolysis varying within the interval of 12.0-12.4, and at the end of hydrolysis in the interval of 7.5-7.7.
EFFECT: obtaining the foam-generator with high foam-generating properties, which are achieved both with the application of moderately mineralised water and alkaline highly hard lime water.
1 ex, 1 tbl
SUBSTANCE: invention relates to production of artificial materials which imitate natural materials. The crude mixture for imitation of natural stone contains, wt %: blast-furnace slag ground and sieved through sieve N014 15.0-20.0; coal dust 5.0-7.0; portland cement 21.0-25.0; superplasticiser S-3 1.0-1.3, ferruginous quartzite ground and sieved through sieve N5 46.7-58.0, with water-to-cement ratio of 0.5-0.6.
EFFECT: high strength.
SUBSTANCE: invention relates to building equipment and can be applied in the production of concrete products for the improvement of their basic physical-chemical properties. The complex additive for concrete mixtures and mortars contains a superplasticiser C-3, a mixture of Iceland spar, aluminium sulphate and fine-grained pyrite in a ratio, wt %: superplasticiser C3 10-30, Iceland spar 50-80, aluminium sulphate 5-7.5, fine-grained pyrite 5-7.51.
EFFECT: improvement of basic properties of concrete: increase of strength and reduction of moisture permeability.
1 dwg, 1 tbl
SUBSTANCE: raw mixture to obtain a granular insulation material contains, by wt %: microsilica 33.5-45, ash and slag mixture 3.0-14.5, apatite-nepheline ore tailings 25-30, sodium hydroxide (in Na2O equivalent) 22-27, ammonium bicarbonate 0.5-1.5. The invention is evolved in dependent claims.
EFFECT: improvement of strength of granular insulation material while reducing its water absorption, utilization of man-made waste.
4 cl, 1 tbl
FIELD: process engineering.
SUBSTANCE: this invention relates to production of construction materials and can be used for fabrication of concrete articles: decorative open-work guards and grates, fine pavement plates and edge stones, etc. This method consists in mixing of components to required fluidity mix. First, water and super plasticiser are mixed in the mixer. Then, added are cement, micro silica, rock dust and mixed for 2-3 minutes. Now, added are sand and fibre and mixed for 2-3 minutes. The following components result: Portland cement PC500D0, sand of 0.125-0.63 fraction, super plasticiser, fibres, micro silica, rock dust, hardening promoter and water. Production of concrete articles in moulds consists in preparation of mortar, mix feed to moulds and curing in evaporation chamber. Mould inner working surface is processed with fine ply of water. This mould filled, thin ply of water is sprayed on mix surface and mould is closed by temporary trough.
EFFECT: higher fluidity, strength, lower costs, possibility of production of open-work articles.
4 cl, 1 tbl, 3 dwg
FIELD: process engineering.
SUBSTANCE: invention relates to production of inorganic heat-resistant rustproof composites in production of plastics, antirust and lubing materials for construction, electrical engineering, etc. Proposed method comprises mixing of inorganic natural material, liquid glass, dolomite powder and additive, mix forming and thermal treatment. Used is liquid sodium glass, its density making 1.28-1.42 kg/m3, as inorganic natural material, that is, montmorillonite modified by organic substance. Said additive represents a hydrated cellulose fibre shaped to 5.0-20.0 mm long staple impregnated with 30%-aqueous solution of iron, zinc, copper and aluminium sulphates taken in the ratio of 1.0:0.5:0.5:1.0 in flushing bath for 70-80 minutes. Then, said fibre is squeezed to moisture content of 60-65% and dried at 120-140°C to remove 95-98% of residual moisture. Components are mixed by mechanical activation for 8-10 minutes, mix being formed and annealed at temperature increase from 140°C to 1300°C for 30-40 minutes. Note here that montmorillonite is modified by the product of interaction between caprolactam or its oligomers with butyl stearate. Mix contains components in the following ratio in wt %: modified montmorillonite - 20-60, liquid glass - 20-30, dolomite - 10-35, cellulose fibre - 10-15. This invention is developed in dependent clauses.
EFFECT: higher fire resistance, lower heat conductivity factor, antirust properties.
3 cl, 3 ex, 1 tbl
SUBSTANCE: raw material mixture for obtaining artificial stone includes, wt %: Portland cement 28-30, carbon silicides 26-29, iron oxides 1-1.5, water 28-30, cut into 5-15 mm segments asbestos fibre 1-1.5, quartz sand 11-13.
EFFECT: obtaining durable and ecologically safe artificial stone.
SUBSTANCE: granulated composite filler for concrete products of size 0.5-10.0 mm, consisting of core and shell, wherein the core is obtained by granulating the mixture together with moulding flask and sodium hydroxide milled up to the specific surface area of 150-250 m2 / kg at their weight ratio of 0.70- 0.95: 0.05-0.30 with combination by aqueous solution of sodium silicate with density of 1.2-1.3 g / cm3 in the amount of 0.1-7.0 wt % of mixture, and shell is formed on the surface of core by its balling with dry dust mixture together with milled quicklime and silicofluoride sodium in a weight ratio of 0.85-0.95: 0.05-0.15 with the subsequent hardening up to the strength not less than 0.12 MPa, alkylsulphonate heated up to 50°C is used at obtention of core together with the indicated combination in the amount of 0.1-7.0 wt % of weight of the core components. Concrete building product is produced by using the granulated filler indicated above.
EFFECT: decrease of duration of steam treatment and water resistance of concrete products when increasing and maintaining the strength characteristics.
2 cl, 1 tbl, 1 ex
SUBSTANCE: stowing composition comprising portland cement, plastifying agent, fine-grained filler - sand and water, additionally comprises as a binder the milled tailings of wet magnetic separation of ferrous quartzites with an average particle size of 2.071 microns, as a plastifying agent - superplasticiser SP-1, and the sand with an average particle size of 62.26 microns with the following ratio of components, wt %; the said cement - 13.48; the said sand - 56.43; the said wastes - 2.70; superplasticiser SP-1 - 0.138; water - the rest.
EFFECT: decrease in cement consumption, and increase in the strength of the stowing composition, use of sand with a lower fineness modulus.
1 ex, 2 tbl
FIELD: building materials, in particular concrete additives (plasticizer).
SUBSTANCE: 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.
EFFECT: concrete mixtures with controlled flow characteristic and concrete curing rate.
2 cl, 4 ex