Filling mixture compound
SUBSTANCE: filling mixture compound includes ground granulated acid blast-furnace slag containing particles, %: less than 1 mcm - 4.3; less than 3 mcm - 12.6; less than 5 mcm - 17.2; as inert filler are processing wastes of wet magnetic separation of ferruginous quartzites, which contain particles, %: less than 1 mcm - 3.4; less than 3 mcm - 12.6; less than 5 mcm -17.2, water and in addition - composition of lime-gypsum byproduct of vanadium production and SP-1 superplasticising agent at the following component ratio, wt %: the above slag 16.1, the above composition 4.8, the above wastes 57.7, SP-1 superplasticising agent 0.0805 and water is the rest.
EFFECT: avoiding expensive cement, use of slag of lower grade, increasing the strength, enlarging and increasing volumes of utilised technogenic wastes for sufficient improvement of ecological environment of the region.
The invention relates to the mining industry and can be used in the development of mineral deposits with the mined-out space.
Known filling mixture comprising cement, ground granulated blast furnace slag, aggregate, and water in the following ratio, wt.%: cement - 2; ground granulated blast furnace slag - 18,4; aggregate - 61,38; water - other .
The disadvantages of this mixture are low ductility due to insufficient content of the fine fraction, and low strength of 3.0 MPa at 90 days of constructed array through the use of a filler with a tensile strength below the normative strength of the bookmark.
The closest present invention is a compound of backfill mixture comprising cement, ground granulated blast furnace slag, inert filler and water. As the inert filler the composition contains amorphous precipitation neutralization of sulfuric acid with limestone, pre-treated with an aqueous solution of sulphate of iron (III) Fe(OH)SO4, in the following ratio, wt.%: cement 4,0-6,8; ground granulated blast furnace slag of 9.7 to 16.5; amorphous precipitation neutralization of sulfuric acid with limestone 31,7 of 40.8; hydroconsult iron (III) 1,2-2,0; water the rest .
The disadvantages of this structure are the use as a binder scarce material - cement and slag with a higher quality factor 1,51, table 1, low strength for the high rate of binding (up 23%) and limiting waste vanadium production.
The task of the invention is the elimination of expensive cement and the use of slag lower grades, increase strength, enhance and increase recycling industrial wastes to improve the ecological environment of the region.
To solve this problem is proposed composition of the filling mixture, including ground granulated blast furnace slag, inert filler and water. Moreover, the binder specified acidic slag containing particles: less than 1 µm and 4.3%; less than 3 μm for 12.6%; less than 5 μm - 17.2%, and as inert filler - tailings wet magnetic separation of ferruginous quartzite containing particles: less than 1 µm and 3.4%; less than 3 μm for 12.6%; less than 5 μm is 17.2%. Optionally, the composition contains a composition of lime-gypsum is a by - product vanadium production, and superplasticizer SP-1, in the following ratio, wt.%:
The technical result is an increase in strength of the filling mixture, recycling mining production, vanadium production and waste beneficiation of ferruginous quartzite, reduction of water consumption, reduction of environmental pollution.
Lime-gypsum composition is a by - product vanadium production, THE 5744-002-1246473-2004 containing V2O5- 3%, MnO - 22,5% in the chemical composition shown in table 1).
According to the official site: http://www.ktprom.ru/plast.htm, www.yarhim.ru/news/2006/10/news15/?print=page, http://www.polyplast-un.ru/rus/sp-1/, superplasticizer SP-1 is a synthetic organic substance on the basis of a product of condensation of naphthalenesulfonate and formaldehyde with a specific ratio of fractions of different average molecular weight, polynaphthalenesulfonate or methylenbis (naphthalenesulfonate) of sodium. Classification GOST 24211 refers to plastifitsirujushchej-water-reducing mind - superplasticizers. Chemical composition: methylenbis (naphthalenesulfonate) sodium or polynaphthalenesulfonate. Superplasticizer SP-1 produced according to TU 5870-005-58042865-0 and designed (used):
- to increase the workability and formemost concrete mixes without compromising strength and performance durability of concrete (at constant water-cement ratio);
for a substantial improvement of physico-mechanical properties and the structural properties of concrete (while reducing water consumption and constant workability);
- to improve the workability of concrete mixtures and improve the physico-mechanical and structural properties of concrete (while reducing the water / cement ratio and increasing the workability);
- to reduce cement consumption without reducing the workability of concrete mixture, physico-mechanical and structural properties of concrete by reducing the water content in concrete mix).
Granulated blast acidic slag (slag), ground to the content of particles less than 1 μm and 4.3%; less than 3 μm for 12.6%; less than 5 μm and 17.2% (granulometric composition shown in table 2), mixed waste enrichment wet magnetic separation of ferruginous quartzite containing particles: less than 1 µm and 3.4%; less than 3 μm for 12.6%; less than 5 μm and 17.2% (granulometric composition shown in table 2), and lime-plaster composition containing 100% fraction less than 43 microns, and shut water, which had previously added superplasticizer SP-1, the final mixture was mixed to a uniform consistency. The resulting mixture is prepared samples of size 70×70×70 mm, the Samples were kept in a climatic chamber for 2-3 days before reaching the Stripping strength of the samples. In the chamber was maintained temperature 20±20°C and relative humidity of 90-95%, i.e. conditions similar to the conditions of curing of the array in the mine. After demoulding, the specimens were again placed in the climatic chamber for further curing for 90 days, after which determined the mechanical strength using a hydraulic press. The following results are obtained: mechanical strength - 7,15 MPa at the age of 90 days when the binder content of 16.1% (slag).
The prototype, when the binder content 23,12% (cement of 6.73% and slag 16,39%), mechanical strength is 4.35 MPa at the age of 90 days.
Hydraulic properties of blast furnace slag evaluated according to GOST 3476-74 the quality factor K, which is determined by the formula:
when the content of magnesium oxide to 10%
when the content of magnesium oxide is more than 10%:
For grades 1 K=1,65; 2 varieties K=1,45; 3 varieties of 1.2.
In table 3 shows the chemical composition of the granulated blast furnace slag, and in table 4 - source gross composition of the mixtures and the results of testing the mechanical strength of samples prepared from these Mesa.
|The chemical composition of lime-plaster composition, calculated on the anhydrous state, wt.%|
|Granulometric composition of components|
|components||The distribution of particle fractions, wt.%|
|0-1 µm||1-3 microns||3-5 microns||5-10 microns||10-43 is km||43-71||71-100||Σ|
|blast furnace slag||4,30||8,30||4,60||12,25||40,89||22,71||6,95||100|
|Tailings wet magnetic|
|separation of ferruginous quartzite||3,40||9,20||4,60||12,42||45,90||21,99||2,49||100|
|The chemical composition of blast furnace slag|
|The quality factor K||CaO, %||SiO2, %||Al2O3, %||MgO, %||MnO, %||Other %|
|The placeholder||1,51||28,9||36,5||17,6||10,9||0,7||of 5.40|
From table 2 it follows that the task of increasing the mechanical strength backfill mixes, reduction of binding is achieved by adding plasticizer SP-1 and the composition of the lime-gypsum (by-product vanadium production).
The use of the proposed technical solution completely eliminates the consumption for filling operations expensive cement is, as well as ensures high durability at replacement of slag on the more low-grade and expand and increase the volume of recyclable industrial waste to a significant improvement of the ecological environment of the region.
Sources of information
1. Lukowski, Emeniem, Kuip. The use of blast furnace slag dump for the preparation of binding of filling mixture. Mining magazine, 1979, No. 1, p.39.
2. RF patent №2186989 published 10.08.2002,
The composition of the filling mixture, including ground granulated blast furnace slag, inert filler and water, characterized in that it contains the specified acidic slag containing particles, %: less than 1 µm and 4.3; less than 3 μm - 12,6; less than 5 μm - 17,2, as inert filler - tailings wet magnetic separation of ferruginous quartzite containing particles, %: less than 1 µm and 3.4; less than 3 μm - 12,6; less than 5 μm and 17.2, and additionally composition of lime-gypsum is a by - product vanadium production and superplasticizer SP-1, in the following ratio, wt.%:
|The soup is a plasticizer SP-1||0,0805|
FIELD: mining engineering.
SUBSTANCE: according to the procedure mine working is filled with backfilling mixture layer by layer. Upon laying each layer of backfilling mixture is subjected to autoclave treatment; for this purpose an autoclave chamber is constructed in the vertical mine working by arranging an isolating bridge in it at distance for backfilled part of borehole equal to thickness of a backfilling layer. Thickness is multiple to a step of shaft furniture. The bridge is positioned under the tier of a divider. Upon autoclave treatment of the laid layer all furniture above it is dismantled by height of the backfilling layer.
EFFECT: reduced expenditures, facilitation of favourable ecology.
SUBSTANCE: method involves arrangement in worked out area of backfill material speed converter, supply to the well adjacent to the worked out area of subsequently loose and hardening backfill materials. Elastic closed cover with weight in its lower part and which is fixed on rope with hose is used as speed converter. The above cover is laid on dry backfill material layer; then, it is filled with compressed air till working pressure. Loose backfill material is supplied till the layer is filled with height not exceeding D diameter of cover. Then, hardening backfill material is supplied. Cover is lifted vertically through the height of new layer. Then, cycles for supplying of backfill materials and movement of cover are repeated till complete filling of the worked out area. Diameter D of cover in filled state is accepted equal to 0.2 B, where B is maximum linear size of the worked out area, m.
EFFECT: invention allows increasing distribution efficiency of fineness of backfill material and reducing the wear of speed converter.
SUBSTANCE: filling mixture compound including ground granulated blast-furnace slag, binding agent, inert filler and water contains the specified acid slag as binding agent with the following particle size distribution: less than 1 mcm - 4.3%, less than 3 mcm - 12.6%, less than 5 mcm - 17.2% and dolomite powder containing not less than 10% of particles with size of less than 1 mcm; wastes of wet magnetic separation of ferruginous quartzites as inert filler containing not less than 3.4% of particles with size of less than 1 mcm. In addition, composition includes surface active additive - superplasticising agent SP-1 at the following component ratio, wt %: the above slag 12, the above dolomite 10, the above wastes 60, water is the rest, and superplasticising agent SP-1 0.5% of slag.
EFFECT: larger volumes of utilised industrial wastes for sufficient improvement of environmental safety at maintaining the strength during 28 days.
1 ex, 2 tbl
SUBSTANCE: stowing connection strap includes pit and anchor props and filtering diaphragm. Pit props consist at least of two parts made from polymer materials and attached to each other. Anchor prop has the height which is less than the height of pit prop and is equipped with spacing screw and devices for attaching of pit prop to it in upper and lower parts, for example by means of articulated shoes. Connection strap is easily mounted, transportation of its modules is simplified; it is possible to use it for many times, and also in openings of various geometrical dimensions.
EFFECT: reducing costs for stowing operations and increasing their efficiency.
FIELD: oil and gas production.
SUBSTANCE: method includes installation of a manifold pipeline and supply of a filling mixture along it. Besides, the filling mixture is supplied along the manifold pipeline to the height of at least 1.7 m to the roof level. Afterwards the direction of the filling mixture flow movement from the vertical to the horizontal one by means of a device for additional filling of developed chambers, which makes it possible to save the energy of a mud torrent movement. The device for additional filling of developed chambers comprises a nozzle and is equipped with extension pipes. Supports with step-bearings are installed under extension pipes. Length of extension pipes does not exceed 1/5 of a developed chamber length. Height of supports is identified depending on the angle of the filling mixture spread α.
EFFECT: improved completeness and evenness of the developed space filling with the filling mixture along the whole perimetre of the chamber.
2 cl, 4 dwg
SUBSTANCE: filling mixture compound containing Portland cement, filler and water includes wet magnetic separation waste with specific surface area of 80 m2/kg as filler; Portland cement M 400 crushed in disintegrator together with wet magnetic separation waste of ferruginous quartzites (WMS) till composite binding agent with specific surface area of 500 m2/kg is obtained, at the following component ratio, wt %: portland cement M 400 5-10, wet magnetic separation waste 17-22, the above filler 68-71, and water is the rest.
EFFECT: environmental protection, filler material is obtained, which binds in its structure the contaminants and excludes their migration to environment.
SUBSTANCE: in process of filling mass erection a tight reservoir is placed in the filled mine, and the reservoir has variable volume and is made of elastic material, and on completion of filling works, but prior to the filling mass hardening, the reservoir is filled with a foreign fluid-like matter. The matter is supplied in this reservoir under pressure. Increase of dimensions of the tight reservoir with the variable volume from the elastic material inside the filling mass results in the fact that the filling material fills all cavities at the contact with the mine walls, and exposure to pressure forms forces that compensate for the filling material shrinkage during hardening. As a result, a permanent and an efficient contact of the filling mass and enclosing rocks is provided along the whole perimetre of the filled mine, and all unwanted geomechanical consequences, which are usually related to availability of unfilled volumes when traditional technologies of filling mass erection are used, are eliminated.
EFFECT: invention makes it possible to increase the bearing capacity of the filling mass.
SUBSTANCE: method includes filling gaps with the help of flexible curb, which is a tight container sewn from hose of strong watertight cloth, shaped as a sack or bag closed at both ends. Valves with holes are installed in upper corners of flexible curb. One valve is intended to feed cement-containing mixture into the container, and the second one - for air outlet from filled space. The flexible curb is evenly laid behind course strengthening space, and cement-containing material is injected through one of valves, at the same time air is exhausted from filled space via the other valve.
EFFECT: high-quality and efficient filling of gaps in mining courses.
SUBSTANCE: method to develop potassium beds includes a continuous development system, plow or combine mining, conveyor transportation, filling of developed space. Developed space is fenced off the bottom hole with a powered support, and backfilling material is used to completely fill the developed space, while initially developed space is filled with backfilling material with filling extent of 0.8-0.9, at the same time distance from powered support to face does not exceed 10-12 m, and then space behind partition, which remained unfilled, is backfilled to roof of withdrawn bed. Filling of bed roof is carried out with mechanical method with the help of pneumatic filling complex. Production complex operation in face is controlled automatically.
EFFECT: improved completeness of potassium ores extraction with preservation of continuity of water protection thickness, efficiency and safety of production works performance.
3 cl, 2 dwg
SUBSTANCE: invention relates to mining and can be used in underground mining of potash mines with goaf stowing. Proposed method comprises forming laying cavity in the chamber, separate transfer and storage of salt wastes and clay-salt slimes, discharged of settled brine. Note here that chamber laying cavity is filled, first, with clay-slat slimes and, after settling of said slimes and brine clarification, salt wastes pulp is fed into said chamber to fill it completely. Note also that solid fraction of clay-salt slimes fed into the chamber is determined by the following formula : where Msl is weight of solid clay-salt slime fraction in the chamber, t; Msc is weight of salt waste in the chamber without clay-salt slime, t; S+Sl is sum of salt wastes and clay-salt slimes withdrawn from enrichment process. Invention is detailed in dependent claims.
EFFECT: increased volume of laid clay-salt slime in goaf stowing.
4 cl, 1 ex, 3 dwg
SUBSTANCE: polystyrene mixture contains a composite mineral binder, a polystyrene filler, an air-entraining additive, a plasticising additive, a passivator additive and water. The mineral binder is a harmoniuosly balanced low-clinker mix of cement clinker, gypsum and activated anthropogenic wastes of alumosilicate composition in the form of blast-furnace and/or electric thermal phosphoric granulated slag, and/or bauxite slag, and/or converter granulated slag, and/or TPP carry-over ashes and soda-sulfate mix with specific surface of 350-475 m2/kg at the following ratio of components in polystyrene concrete mixture, wt %: mineral binder 67.0-75.0, polystyrene filler 1.5-8.0, air-entraining additive 0.08-0.24, plasticising additive 0.35-0.75, passivator additive 1.2·10-5-3.8·10-4, water - balance.
EFFECT: provision of desired level of environmental safety and comfort of living quarters with controlled modelling of wooden house atmosphere, at optimal levels of polystyrene concrete strength, density and heat conductivity.
1 cl, 2 tbl
SUBSTANCE: invention relates to compositions of crude mixtures used in making bricks for low-height construction. The crude mixture for making bricks contains the following in wt %: phosphogypsum 45.0-52.0; fuel ash 47.0-50.0; glass fibre cut to 3-10 mm pieces 1.0-5.0.
EFFECT: high water resistance of bricks.
FIELD: process engineering.
SUBSTANCE: invention relates to production of construction materials and may be used in production of construction materials and wood-slag composites. In compliance with proposed method, wood wastes are treated in alkaline medium at 100°C for 1-2 h, wood waste-t-liquid glass weight ratio making 1:5.6-10. Produced bulk containing water soluble lignine is mixed for, at least, 0.1 h with cementing agent consisting of blast-furnace granulated slag pre-ground to surface density of, at least, 3100 cm2/g and cement. Mix thus produced is compacted and form is removed in 8-24 hours depending upon the quality of solidification agent.
EFFECT: higher strength, reduced heat conductivity of cheap construction wood-slag composite.
3 cl, 1 tbl, 6 ex
SUBSTANCE: invention relates to construction materials. The crude mixture for making wall and building stones through vibrocompression contains non-clinker slag-alkali binder and aggregate in form of sand, having the following composition in wt %: SiCb 34.1-39.9; Al2O3 9.8-11.0; FeO+Fe2O3 12.8-26.1; CaO 11.3-13.7; MgO 4.2-5.7; SO3 1.7-3.2; Na2O+K2O 1.3-3.2; percentage of other impurities 8.5-15; dry slaked boiler coal slag, additive - clay or saw dust, or microsilica or mixtures thereof with the following ratio of components, wt %: said binder 25-35, sand sand 5-15, said additive 3-15, said slag - the rest. Method of making wall and building stones from the said mixture involves tempering the said mixture with a solution which contains structured water and a polymer, placing into a mould, vibrocompression, removal from the mould and drying the stones.
EFFECT: high mechanical strength, homogenisation of the composition of concrete in the article, low density and thermal conductivity of building stones.
2 cl, 2 tbl, 1 ex
SUBSTANCE: invention relates to industry of building materials, particularly to preparation of concrete mixtures for making articles to undergo glasing. The concrete mixture contains the following in wt %: slag portland cement 20-30; crushed granular blast furnace slag of the 5-10 mm fraction 34-42; chamotte of the a fraction smaller than 5 mm 16-20, crushed expanded pearlite of the 5-10 mm fraction 16.0-22.0, with water-to-cement ratio of 0.5-0.6.
EFFECT: reduced loss of strength of articles made from the concrete mixture during glasing.
SUBSTANCE: invention relates to industry of construction materials, in particular to production of cellular concretes. Raw mixture for foam concrete manufacturing contains, wt %: cement 30.0-32.0; wood resin saponificated WRS -0.7-1.0; "ПБ" - 2000 0.6-0.7; TPP ash 29.09-32.27; cut into 3-7 mm segments capron fibre 0.1-0.5; "ГКЖ-94" 0.01-0.03; water 36.0-37.0, with total content of WRS and "ПБ" -2000 1.4-1.6.
EFFECT: increase of mixture technical characteristics.
SUBSTANCE: invention relates to the industry of construction materials and specifically to composition of a concrete mixture for roofing panels and a method of making the said panels. The concrete mixture for roofing panels which contains slag portland cement, blast-furnace coarse aggregate, fine aggregate, plasticising additive, tempering liquid, contains blast-furnace coarse aggregate with particle size of 10-25 mm, the fine aggregate in form of granular blast furnace slag with particle size of 1-3 mm and the plasticising additive in form of powdered Relamix Type 2 and an additional hardening activator - fine-grained mining sand which contains 10-20% garnet mineral, an ash-slag mixture, calcium chloride, water, structured 10-15 minutes before preparation of the concrete mixture through ultrasonic treatment at 18-21 kHz, with the following ratio of components in wt %: slag portland cement 25-35, said crushed blast furnace slag 10-18, said mining sand 15-20, said sand from granular blast furnace slag 5-20, Relamix Type 2 0.1-0.2, calcium chloride 1, said tempering liquid 13-25, ash-slag mixture - the rest. The method of making roofing panels from the concrete mixture described above involves filling a mould with reinforcement and the concrete mixture, compacting for 15 minutes through ultrasonic oscillations at 18-21 kHz and ageing for 2-3 hours, with subsequent treatment by pouring water into the mould, structured through ultrasonic treatment at 18-21 kHz and hardening for 28 days.
EFFECT: increased strength and frost resistance.
2 cl, 1 ex, 2 tbl
SUBSTANCE: invention relates to construction materials, specifically to a construction mixture and a method of making concrete from the said mixture and can be used in making concrete and reinforced concrete products. The construction mixture contains cement, sand, filler, complex additive and tempering liquid. The cement used is slag portland cement, the sand used is mine sand - iron ore tailings from Abagursky agglomerative-concentration plant, the filler used is crushed blast-furnace slag, the complex additive used is Relamix. Type 2, and the tempering liquid is freshly structured liquid in amount of up to free-running mass, with the following ratio of components: slag portland cement - 15-18; blast-furnace slag - 50-60; said mine sand - 21.9-34.7; Relamix. Type 2 - 0.1-0.3. The method of making concrete from the said construction mixture involves putting the tempered mixture into a mould, packing and hardening. The construction mixture is put into the mould. After 2.5-3 hours from the tempering moment, the mixture is further treated with structured water.
EFFECT: higher quality of concrete and shortening of its hardening period.
2 cl, 2 tbl
SUBSTANCE: invention pertains to production of construction materials. The mortar contains the following in wt %: portland cement 8-15; metallurgical slag - dry cooling steel-smelting slag of having the following composition in wt %: CaO 44.0-48.3; SiO2 25.6-27.1; Al2O3 2.4-3.2; Fe2O3 10.2-11.1; MnO 1.4-2.04; MgO 6.0-7.2; Cr2O3 0.6-1.2, ground to specific surface area of 490 m2/kg, 32-45; sand which is activated in a stream under the effect of electromagnetic radiation in the UV range 15-28; dust from electrofilters of cement factories 8-15; water - the rest. The mortar contains the said autoclaved slag.
EFFECT: increased compression strength of concrete made from the proposed mortar.
2 cl, 2 ex
SUBSTANCE: invention is related to the industry of construction materials, namely to compositions of raw mixes and methods for concretes making from it. Raw mix contains the following components, wt %: slag filler - blast furnace granulated slag 40-52, hardening controller - calcium sulfate dihydrate - 4-7, hardening activator - sand, containing 10-15% of minerals garnets - 5-10, complex additive for concretes "Relamix. Type 2" 0.2-0.4, slag binder - electric furnace slag - the rest. Method for production of concrete from specified raw mix includes tempering, mixing, crushing of construction mix in foundry chasers to produce liquid movable mass, its pouring in die moulds and hardening.
EFFECT: increased strength of concrete for compression and bending, and also increased water resistance and frost resistance.
2 cl, 2 tbl
SUBSTANCE: sulphur concrete mix contains the following components, wt %: crushed stone 35-45, binder - gas granulated sulphur 10-30, nanopowder from silica - ASIL-300 0.05-2, sand - balance. In the method of the specified sulphur concrete mix production first crushed stone and sand are heated up to the temperature of 140÷170°C, for instance, in a drying drum, then heated crushed stone and sand are supplied into a mixer, and the specified nanopowder is added, and the mix components are mixed for at least 1 minute, then sulphur is loaded into the mixer and mixed for at least 3 minutes.
EFFECT: increased strength and frost resistance of building items.
4 cl, 1 ex, 1 tbl