Wood concrete mix
SUBSTANCE: wood concrete mix comprises, wt %: portland cement 34.3-36.0; rush cane stems cut into sections of 4-6 cm length with moisture of 10-12% 19.6-20.6; technical sulphur 3.1-3.6; chrome-containing sludge 1.5-1.7; pyrite stubs 6.2-7.2; water - balance.
EFFECT: use of wood concrete with simultaneous production of plastering base on its surface.
The invention relates to the construction materials industry and for manufacturing products (blocks) from arbolita, the surface of which is subject to plastering.
Known cement wood mixture containing, wt.%: Portland 17,0-38,0; liquid glass 1,0-1,4; calcium chloride 0,5-1,1; crushed stalks of cotton 21,0-28,0; water - other . Plastering products from a mixture of cement wood is a time-consuming process.
The task of the invention consists in the manufacture arbolita with simultaneously obtained on the surface of the base for plaster.
The technical result is achieved by the fact that cement wood mixture containing Portland cement, aggregate plant origin, water, as a placeholder contains chopped into segments with a length of 4-6 cm cane reeds with a moisture content of 10-12% and advanced technical sulfur, chromium sludge and pyrite cinder, in the following ratio, wt.%: Portland 34,3-36,0; cane reeds 19,6-20,6; technical sulfur 3,1-3,6; chromium sludge 1,5-1,7; pyrite cinder 6,2-7,2; water - the rest.
The compositions of the mixture of cement wood in the table.
For preparation of mixture of cement wood use chrome sludge following average composition, wt.%: CrO3General - 9,8; CrO3water-soluble - 3,4; CrO3acid-soluble - 1,6; Cao the CT. - 2,37; Cao General 21,4; MgO - 35,7; Fe2O3- 19,2; Al2O3- 2,85; SiO2- 4,8; the rest is water.
In the composition of the mixture of cement wood use pyrite cinder, consisting mainly of a mixture of oxides of iron (II, III) terms of iron content 40-63%, of sulfur 1-2%, the rest - oxides of non-ferrous metals.
Technical sulfur is a byproduct of refining oil with a purity of 99,06% mass ash - 0,4%; mass fraction of volatile organic compounds - 0,53%; mass for moisture is 0.01%.
|Portland cement (500 M)||34,3||35,2||36,0|
|Chopped into segments with a length of 4-6 cm cane reeds with a moisture content of 10-12%||19,6||20,1||20,6|
|Compressive strength, MPa||3,4||3,5||3,7|
Industrial waste (technical sulfur, chromium sludge and pyrite cinder) give the pulp cane resistance to biretrosteel, sulfur restores toxic chromium (VI) in a stable chromium (III).
The components are metered in the desired quantities, mix. The obtained mixture of cement wood is placed in the form. The molding mixture of cement wood conducted vibration (vibrating plates). As the binder composition of the mixture by weight is heavier than the chopped stalks of cane reeds, the vibration process stems one end (side, side) remain in the mixture, and the other end of the cane comes out near the surface and forms the basis ("shingles") for subsequent plastering.
The molded product leave until hardened, then the surface of the plaster. This provides the reduced labour costs by plastering surfaces of cement wood products, increases their lifespan.
The source of information
1. SU 802244, 1984.
Cement wood mixture containing Portland cement, aggregate plant origin, water, characterized in that the filler contains chopped into segments with a length of 4-6 cm cane reeds with a moisture content of 10-12% and advanced technical sulfur, chromium sludge and pyrite cinder, in the following ratio, wt.%: Portland 34,3-36,0; cane reeds 19,6-20,6; technical sulfur 3,1-3,6; chromium sludge 1,5-1,7; pyrite cinder 6,2-7,2; water - the rest.
SUBSTANCE: raw material mixture for concrete production contains, wt %: Portland cement 27.0-31.0; TPP fly ash 52.3-58.9; superplasticiser S-3 0.8-1.4; sodium ethylsiliconate or sodium methylsiliconate 0.2-0.5; 5-30 mm long lavsan fibre 0.05-0.1; water 13.0-15.0.
EFFECT: reduction of cement consumption with provision of concrete strength.
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.
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
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
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 diatomite 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 bond 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, after the indicated balling the additional spraying of 40% aqueous solution of oxalic aldehyde in the amount of 1.0-8.0 wt % (per 100% substance) of weight of shell components is carried out. Concrete building product is obtained by using the granulated filler indicated above.
EFFECT: decrease of thermal conductivity and water resistance of concrete products when increasing and maintaining the strength characteristics.
2 cl, 1 tbl, 1 ex
SUBSTANCE: fine-grained cement concrete is composed of cement, sand, water, plasticizing agent and basalt fibre, introduced into the mixture by the hydraulic opening method, at the following ratio of components, wt %: cement - 34, sand - 64, water - 1.4, plasticizing agent - 0.3, basalt fibre - 0.3.
EFFECT: increase of fracture toughness, strength, resistance of micro-reinforcing component to the influence of aggressive alkaline environment of the cement stone.
SUBSTANCE: subject of the present invention is a dry binder premix which contains the following, wt %: portland clinker having a Blaine specific surface area of 4500 to 9500 cm2/g, preferably 5500 to 8000 cm2/g, the minimum quantity of the clinker by mass percentage relative to the total mass of the premix being determined according to formula (I): [-6.10-3×SSBk]+75, in which SSBk is the Blaine specific surface area given in cm2/g; fly ash; at least one alkali metal sulphate, the quantity of alkali metal sulphate being such that the quantity of equivalent Na2O in the premix is greater than or equal to 5 wt% relative to the mass of fly ash; at least one source of SO3, in a quantity such that the quantity of SO3 in the premix is greater than or equal to 2 wt % by relative to the mass of portland clinker; complementary materials having a Dv90 less than or equal to 200 mcm selected from limestone powders, the quantity of clinker+the quantity of fly ash being greater than or equal to 75 wt %, preferably 78 wt %, relative to the total mass of the premix; the total quantity of clinker in the premix being strictly less than 60 wt % relative to the total mass of the premix. The subject of the invention is also a dry binder mix obtained by mixing said premix with aggregates, as well as a concrete grout composition obtained by mixing with water.
EFFECT: obtaining concrete with low carbon dioxide emission.
13 cl, 1 dwg, 3 tbl
SUBSTANCE: raw mixture for production of coarse aggregate shell contains, wt %: Portland cement 30.0-35.0; casein glue 4.0-7.0; fly ash 28.0-31.0; water 30.0-35.0.
EFFECT: increase of bonding strength of shell with the surface of the coarse aggregate.
SUBSTANCE: raw mixture for production of artificial rock includes, wt %: Portland cement 26-30, silica sand 48.44-56.9, water 16-20, fibrous metal-ceramics 1.0-1.5, phenyletoxisiloxane 0.06-0.1.
EFFECT: increase of strength.
SUBSTANCE: panel comprises a ground renewable component in amount from approximately 0.1% to approximately 95% by weight. In a version of realisation the panel has at least one core and comprises: from approximately 0.1% to approximately 95% by weight of the ground renewable component, from approximately 0.1% to approximately 95% by weight of one or more inorganic fibres, from 0.1% to 30% by weight of one or more binding substances, relative to dry weight of the panel. In a version of realisation the ground renewable component has such distribution of particle sizes, when less than 5% of particles are caught by a sieve with holes sized as 0.312 inches, and less than 5% particles go through a sieve with holes sized as 0.059 inches. The method to manufacture soundproof panels includes the following stages, when: they select a ground renewable component; sort the ground renewable component to produce the necessary distribution of particle sizes; combine the ground renewable component, fibres and binding substance with water; prepare a water slurry; form the main mat from the slurry on a wire net with holes; remove at least some water from the main mat; and perform final treatment of the specified main mat for formation of the soundproof panel.
EFFECT: invention makes it possible to improve acoustic and physical properties of a panel.
8 cl, 8 tbl
SUBSTANCE: paper and/or cardboard mass is ground, ground mass is soaked in hot or cold water for swelling and maintained for 60-240 minutes, polyvinyl acetate is added to the swollen mass in the proportion from 1:7 to 6:7 in respect of the ground mass at weight ratio, and the produced mass is mixed for 30-90 minutes to dough consistence, adding a concentrated water-based colouring pigment of certain colour. The produced mass is laid into a shaping-stress mould or penta-elastic moulds for two thirds of height of the mould boards with placement of one or two layers of reinforcement glass fabric plastering net in it with cells of 2-5 mm, then along the length of the mould onto the surface of the mass they lay a T-shaped metal profile as a joint displacement indicator with thickness of 6-10 mm and coat it with additional amount of the specified prepared mass to the upper edge of the mould boards. Then the mass is compacted, removing mass surplus, the mass is frozen, removed from the mould and dried in the dry room until ready, afterwards the finished panel is painted.
EFFECT: improved panel characteristics.
SUBSTANCE: method for producing a light material, comprising obtaining of granules from a peat mixture, drying and heat treatment, where the peat mixture is prepared by mixed grinding of polypropylene fibres and moss peat in a weight ratio of 1:5, water is added, extrusion of granules and their drying is carried out from the obtained plastic mixture, and heat treatment - at 120-130°C by heating the mentioned mixture prior to extrusion or during 15-20 minutes after drying of granules.
EFFECT: increase of strength.
SUBSTANCE: raw mixture for production of construction and heat-insulating materials by wt %: clay - 75.3-76.2; waste paper shredded up to particles with square are less than 10 mm2 - 0.8-1.2; wood dust screened through mesh No. 5 - 1.0-1.5; glass fibre crushed into sections of 5-50 mm - 9.0-11.0; talc - 11.0-13.0.
EFFECT: increasing strength of products made of raw mixture.
SUBSTANCE: invention relates to production of construction materials. The mixture for making heat-insulation boards contains the following, pts.wt: water 340-360; waste paper 160-200; phosphogypsum 50-60; urea-formaldehyde resin 3-4; starch 2-3; hydrolysed lignin 3-4; carbonate sand 160-200.
EFFECT: reduced consumption of binder in the mixture for making heat-insulation boards.
SUBSTANCE: heat insulation material on the basis of a raw mix contains the following components (in terms of dry substance), wt %: ground fibrous mass from container board 10.56-10.71, binder - polyvinyl acetate glue 0.35-1.72, hardener on the basis of isocyanate 0.02-0.09, foaming agent 0.37-0.38, and water - balance. Ground fibrous mass from container board is used with moisture of 100-350%. The method is characterised to produce a heat insulation material.
EFFECT: reduced coefficient of heat conductivity with preservation of its physical and mechanical characteristics and reduced prime cost of material.
2 cl, 2 tbl, 4 ex
SUBSTANCE: heat-insulating composite material may find application in construction of low-rise buildings of industrial and agricultural purpose, residential buildings, and also in making of room and apartment dividers. Heat-insulating composite material contains, wt %: gypsum cement 32…51, acid fluoride 2.39…2.58, urea-formaldehyde resin 12.0…12.93, peat 10.26…24 and water 24.0…28.0.
EFFECT: increased strength with preservation of low density of material, reduced power inputs in manufacturing.
1 cl, 1 tbl
SUBSTANCE: invention relates to composition of heat and sound insulation materials made on the basis of industrial wastes, and can be used in construction of residential and industrial buildings and constructions. Raw mixture contains filler representing organic wastes in form of wool combings or flax boon, water and polymer-modified foamed magnesian binder, which includes magnesium oxide, magnesium chloride solution and foamer. In addition, mixture contains 5-85% water dispersion of polymer. As filler, it additionally contains spent sorbents of sewage or technological water purification, which contain ions of heavy metals, wt %: filler 20.0-30.0; water polymer dispersion 16.0-24.0; magnesium oxide 11.0-15.0; magnesium chloride solution 14.0-23.0; foamer 1.0-3.0; water - the remaining part.
EFFECT: increase of strength and reduction of coefficient of heat-insulation product heat conductivity.
3 cl, 1 tbl
SUBSTANCE: invention relates to production of construction materials based on gypsum binder. The mix for making gypsum boards contains the following in pts. wt: water - 680-720, waste paper - 45-50, calcium sulphate dihydrate or phosphogypsum - 50-55, urea-formaldehyde resin - 4.8-5.2, starch - 1.0-1.4, ground limestone - 5-6, superplasticiser C-3 - 0.3-0.35.
EFFECT: lower thermal conductivity of gypsum boards.
FIELD: construction engineering.
SUBSTANCE: inorganic board contains a hydraulic cement material, a floured reinforcing fabric of setting qualities 650 ml and less, and saturated carboxylic acid in the following ratio, wt % of solid weight: said cement hydraulic material 20-75, said floured reinforcing fabric 1-30, and said saturated carboxylic acid 0.1-2. There is described method of manufacturing an inorganic board.
EFFECT: improved water absorption, dimensional stability, and freezing and thawing resistance of the inorganic board.
4 cl, 1 tbl, 15 ex
FIELD: building industry and materials.
SUBSTANCE: invention relates to compositions of concrete mixtures used for making underground constructions, wall blocks, enclosing and self-carrying building constructions and making wall made of monolith concrete in low building. Concrete mixture comprising cement and buckwheat husk and ground as filling agents, additive and water involves also ground with natural moisture with particles of size 0.1 mm and the content of argillaceous particles 30%, not above, and superplasticizing agent C-3 as additive in the following ratio of components, mas. p. p.: cement, 1; indicated ground, 2-4; buckwheat husk, 0.6-1.0; superplasticizing agent C-3, 0.01, and water, 0.4-0.6. Invention provides reducing heat conductivity coefficient, sufficiently high strength, enhanced economy and ecological property of concrete.
EFFECT: improved and valuable properties of concrete.