CN103130455A - Red mud concrete and production method thereof - Google Patents
Red mud concrete and production method thereof Download PDFInfo
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- CN103130455A CN103130455A CN2011103756106A CN201110375610A CN103130455A CN 103130455 A CN103130455 A CN 103130455A CN 2011103756106 A CN2011103756106 A CN 2011103756106A CN 201110375610 A CN201110375610 A CN 201110375610A CN 103130455 A CN103130455 A CN 103130455A
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Abstract
The invention relates to red mud concrete and a production method thereof; the red mud concrete comprises the following components by weight: 80%-85% of red mud, 15%-20% of fly ash, 6%-10% of lime or cement, 0.03% of each of manganous phosphate and aluminium phosphate, 0.24% of phosphogypsum, and 0.5 kg of AFB curing agents per 1 m3 of the mixture. The production method comprises the following steps: determining a maximum dry density and an optimum water content of the mixture, calculating the amounts of various materials required by each stirring total amount and the water amount to be supplemented; mixing and stirring aluminium phosphate, manganous phosphate, and phosphogypsum in proportion, and delivering to a raw material storage; adding lime or cement into the raw material storage; pumping water to be supplemented into a water pool, adding a determined amount of the AFB curing agent for normal dilution; respectively adding red mud and fly ash into a storage bin, adding various materials into a stirring bin by using stabilized soil mixing station equipment under the control of a computer, and stirring to obtain the product of red mud concrete. The beneficial effect of the invention solves wastes of alumina factories, protects environment, saves construction cost, and ensures construction quality.
Description
Technical field
The present invention relates to a kind of road-making material, particularly relate to a kind of a kind of novel road-making material for road, square, dump basic unit of plant area and subbase.
Background technology
Red mud is the fines strong basicity solid waste that produces in take bauxite as the raw material production alumina process, and one ton of aluminum oxide of every production approximately produces red mud 0.8-1.5 ton.China is alumina producing big country, produces 2,378 ten thousand tons, aluminum oxide, and accounts for 30% of Gross World Product, nearly 3,000 ten thousand tons of the red mud of generation in 2009.China's red mud comprehensive utilization ratio is only 4% at present, and the accumulation volume of cargo in storage reaches 200,000,000 tons.Along with the reduction gradually of increase year after year and the bauxite grade of China's aluminum oxide output, the year generation of red mud also will constantly increase, and expect 2015, and red mud accumulative total volume of cargo in storage will reach 3.5 hundred million tons.Red mud is stored up in a large number, and both land occupation, wasted resource, easily causes again environmental pollution and potential safety hazard.
At present, the red mud comprehensive utilization still belongs to global problem, in the world red mud is mainly adopted the processing mode of storing up earthing.China's red mud comprehensive utilization work obtains the great attention of each side in recent years, carried out interdisciplinary multi-field comprehensive utilization technique research, but these researchs still is in laboratory stage, also unrealized industrialization.The Ministry of Industry and Information Technology, the Ministry of Science and Technology are about the notice of printing and distributing " red mud comprehensive utilization instruction " No. [2010] 401, interlink (industrial information section), the red mud of dissolving in a large number is crucial, domestic many enterprises and R﹠D institution once studied, tested as road basement material red mud, as: all test on road in Guangxi, Shandong.But alkalescence is strong, the characteristics such as specific surface area is large, calcium contents is low, various component is wrapped up mutually, embedding cloth because red mud (the particularly red mud of Bayer process production) has, and makes the unconfined compression strength of roadbed undesirable, water stability is poor, alkalescence is oozed out to cause for the second time and polluted.Therefore fail spread always and use.
Current red mud comprehensive utilization Main Problems:
(1). lack dissolve in a large number red mud and the gordian technique with industrial competitiveness.Red mud has alkaline strong, the features such as specific surface area is large, various components are wrapped up mutually, embedding cloth, make its comprehensive utilization be difficult to use for reference some ripe techniques of other field, technology and equipment, not yet form efficient utilization and be suitable for the technical support system of large-scale promotion in China.
(2). lack respective standard, the produce market degree of recognition is low.Current, as to have developed part red mud comprehensive utilization product is due to the support that lacks national standard or industry standard, make material of construction as red mud, only have with reference to other like product standards, traction is low, cause product application to be restricted, be difficult to large-scale promotion.
(3). lack support policy targetedly.In the existing preferential fiscal and tax policies of China, do not take into full account the red mud strong basicity and cause the comprehensive utilization difficulty much larger than the singularity of other industrial residues, lack support policy targetedly, enterprise utilizes the enthusiasm of red mud not high.
(4). the comprehensive utilization attention degree to red mud has much room for improvement.Red mud comprehensive utilization is the non-main business of Alumina Enterprise, is in the end of industry, deficiency in economic performance, most enterprises take a pile disposal options.The environmental risk of red mud pilling and potential safety hazard have chronicity and disguise, cause the attention degree of enterprise and relevant departments inadequate.
This shows, above-mentioned existing road-making material obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, completed by development but have no for a long time applicable design always, and common product does not have appropriate structure to address the above problem, this is obviously the problem that the anxious wish of relevant dealer solves.Red mud concrete and the production method thereof of therefore how to found a kind of novel texture, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
The object of the invention is to, overcome the defective that existing road-making material exists, and provide a kind of red mud concrete and production method thereof of novel texture, technical problem to be solved is for the intrinsic characteristics of red mud itself, activate itself mineral substance activity by chemical reaction, increase scarce chemical element by the rock decay principle, reach the object of the invention through physics, mechanical function.Thereby solve red mud as the indices that road-making material should possess, be very suitable for practicality.
The object of the invention to solve the technical problems realizes by the following technical solutions.As follows according to its weight proportion that the present invention proposes: red mud 80%-85%, flyash 15%-20%, lime or cement 6%-10%, manganous phosphate and aluminum phosphate each 3/10000ths, phosphogypsum thousand/two four, 0.5 kilogram of every cube of compound of AFB solidifying agent.
The object of the invention to solve the technical problems also realizes by the following technical solutions.The method that proposes according to the present invention comprises following production stage: at first, measure maximum dry density and the optimum moisture content of compound, calculate each moisture content that stirs the required various material quantities of total amount and should mend and enter computer program; Then, aluminum phosphate, manganous phosphate, phosphogypsum are mixed in proportion stirring and then input raw material storage; Secondly, lime or cement are entered raw material storage, (lime should be processed abrasive dust and become slaked lime powder); Moreover, will answer moisturizing suction pond, pour into and should add the AFB curing dose and normally dilute; At last, pour respectively red mud and flyash into feed bin, with Stabilized Soil mixing station equipment, control by computer and each material is entered stir storehouse stir, go out product red mud concrete.
The present invention compared with prior art has obvious advantage and beneficial effect.As known from the above, for achieving the above object, the invention provides a kind of type material solves the technical scheme that its technical problem adopts and is: add flyash in red mud, align its liquid plastic limit index, change and make its grain pattern make it reach the essential condition of road-making material.Add manganous phosphate, aluminium and phosphogypsum, align its pH value and improvement soil, gain in strength, participate in lime or cement and come fixed its moulding, activate silicon intrinsic in red mud, calcium, aluminium with the AFB solidifying agent at last, increase its resistance to compression, folding strength by chemical reaction, improve water stability, freeze thawing and minimizing crack make it become the novel material of building the road.
By technique scheme; red mud concrete of the present invention and production method thereof have following advantages and beneficial effect at least: the utilization of the waste that has at first solved alumina producer---red mud; a large amount of soils of stacking the annual needs of red mud have been reduced; potential safety hazard and the pollution problem of stacking red mud have been solved; secondly; solved a large amount of Sand extractions for repairing the roads again, environment has been protected in the use of soil.Again, save construction cost, accelerated construction speed, guaranteed construction quality.
In sum, red mud concrete of the present invention and production method thereof, its weight proportion is as being red mud 80%-85%, flyash 15%-20%, lime or cement 6%-10%, manganous phosphate and aluminum phosphate each 3/10000ths, phosphogypsum thousand/two four, 0.5 kilogram of every cube of compound of AFB solidifying agent.Its production stage is: measure maximum dry density and the optimum moisture content of compound, calculate each moisture content that stirs the required various material quantities of total amount and should mend; Aluminum phosphate, manganous phosphate, phosphogypsum are mixed in proportion stir rear input raw material storage; Lime or cement are entered raw material storage; To answer moisturizing suction pond, and pour into and should add the AFB curing dose and normally dilute; Pour respectively red mud and flyash into feed bin, with Stabilized Soil mixing station equipment, control by computer and each material is entered stir storehouse stir, go out product red mud concrete.The invention has the beneficial effects as follows the waste that has solved alumina producer, protected environment, saved construction cost.The present invention is a significant progress in technology, and has obvious positively effect, is really a new and innovative, progressive, practical new design.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, for can clearer understanding technique means of the present invention, and can be implemented according to the content of specification sheets, and for above and other purpose of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and the cooperation accompanying drawing, be described in detail as follows.
Description of drawings
Fig. 1 is that red mud concrete construction road of the present invention rolls the scanning electron microscope (SEM) photograph after 28 days.
Embodiment
Reach for further setting forth the present invention technique means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, red mud concrete and its embodiment of production method, structure, feature and effect thereof to foundation the present invention proposes are described in detail as follows.
For the intrinsic characteristics of red mud itself, (physicals of red mud, chemical composition, mineral composition) activates itself mineral substance activity by chemical reaction, increase scarce chemical element by the rock decay principle, reach the object of the invention through physics, mechanical function.Thereby solve the indices that red mud should possess as road-making material.
The technical problem to be solved in the present invention is:
(1) polymerizability of red mud makes red mud energy polymerization forming.
(2) water stability of red mud makes red mud become hydrophobe from present once the loose performance of soaking.
(3) strengthen the unconfined compression strength of red mud.
(4) solve that red mud is wet as doing of roadbed material, the temperature difference, shrinking cracks make it reach the purposes of roadbed material.
(5) solve red mud and cause secondary pollution problem (solving red mud concrete construction reference, enterprise's production standard, health standard detection standard, standard, separately application).This research product makes its polymerization with traditional way in these cases.Make it take full advantage of the original Chemical Composition of red mud with the principles of chemistry and become active by inertia.Increase ultimate compression strength, separately process water stability, desciccation crack, secondary pollution with AFB solidifying agent and physical mechanical method, thereby make red mud become the red mud concrete, reach the purpose of traditional road-making material standard.
The technical scheme that its technical problem that solves this type material adopts is: add flyash in red mud, align its liquid plastic limit index, change makes its grain pattern make it reach the essential condition of road-making material.Add manganous phosphate, aluminium and phosphogypsum, align its pH value and improvement soil, gain in strength, participate in lime or cement and come fixed its moulding, activate silicon intrinsic in red mud, calcium, aluminium with the AFB solidifying agent at last, increase its resistance to compression, folding strength by chemical reaction, improve water stability, freeze thawing and minimizing crack make it become the novel material of building the road.
A. proportioning: red mud 80%-85%, flyash 15%-20%, lime or cement 6%-10%, (method of exosmosing) manganous phosphate and aluminum phosphate each 3/10000ths, phosphogypsum thousand/two four, 0.5 kilogram of every cube of compound of AFB solidifying agent.
B. operation steps is: 1 measures maximum dry density and the optimum moisture content of compound, calculates each moisture content that stirs the required various material quantities of total amount and should mend and enters computer program.
2, aluminum phosphate, manganous phosphate, phosphogypsum are mixed in proportion stirring and then input raw material storage.
3, lime or cement are entered raw material storage, (lime should be processed abrasive dust and become slaked lime powder).
4, will answer moisturizing suction pond, and pour into and should add the AFB curing dose and normally dilute.
5, pour respectively red mud and flyash into feed bin.With Stabilized Soil mixing station equipment, control by computer and each material is entered stir storehouse stir, go out product---the red mud concrete.
The roadbed that the red mud concrete transports construction road to spreads out cloth, rolls [roll compactness, the red mud concrete answers 〉=96 No. 1, and the red mud concrete answers 〉=98 No. 2]
Red mud concrete of the present invention is qualified at anti-secondary pollution, detects by immersion in 2 years, and the pH value of water remains on 7 always.Detect on ultimate compression strength through highway detection department and all reached the existing highway design requirements.The basic unit and the subbase that can be used for highway.
| No. 1, red mud concrete | 1.96Mpa |
| No. 2, red mud concrete | 3.32Mpa |
Upper table is 7 days unconfined compression strengths (immersion result) of red mud concrete
Fig. 1 is that red mud concrete construction road of the present invention rolls the scanning electron microscope (SEM) photograph after 28 days.
the above, it is only preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet be not to limit the present invention, any those skilled in the art, within not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, any simple modification that foundation technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (2)
1. red mud concrete is characterized in that its weight proportion is as follows:
Red mud 80%-85%, flyash 15%-20%, lime or cement 6%-10%, manganous phosphate and aluminum phosphate each 3/10000ths, phosphogypsum thousand/two four, 0.5 kilogram of every cube of compound of AFB solidifying agent.
2. method of producing the red mud concrete is characterized in that the method comprises following production stage:
At first, measure maximum dry density and the optimum moisture content of compound, calculate each moisture content that stirs the required various material quantities of total amount and should mend and enter computer program;
Then, aluminum phosphate, manganous phosphate, phosphogypsum are mixed in proportion stirring and then input raw material storage;
Secondly, lime or cement are entered raw material storage, (lime should be processed abrasive dust and become slaked lime powder);
Moreover, will answer moisturizing suction pond, pour into and should add the AFB curing dose and normally dilute;
At last, pour respectively red mud and flyash into feed bin, with Stabilized Soil mixing station equipment, control by computer and each material is entered stir storehouse stir, go out product red mud concrete.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103756106A CN103130455A (en) | 2011-11-23 | 2011-11-23 | Red mud concrete and production method thereof |
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| CN2011103756106A CN103130455A (en) | 2011-11-23 | 2011-11-23 | Red mud concrete and production method thereof |
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| CN103130455A true CN103130455A (en) | 2013-06-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104926230A (en) * | 2015-05-28 | 2015-09-23 | 武汉德利保生态技术有限公司 | Red mud water hard roadbase, roadbase material and preparation method of roadbase material |
| CN109057829A (en) * | 2018-09-06 | 2018-12-21 | 山东科技大学 | A kind of the siccative finished bag and method of built-in water pocket group |
| CN111548039A (en) * | 2020-04-22 | 2020-08-18 | 深圳大学 | Red mud geopolymer aggregate and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079452A (en) * | 1992-06-05 | 1993-12-15 | 山西铝业建设公司 | Red mud composite brick and preparation method |
| WO2001004426A1 (en) * | 1999-07-12 | 2001-01-18 | Okutama Kogyo Co., Ltd. | Lime-improved soil mortar and method for production thereof and fluidization treatment method using the same |
| CN1502588A (en) * | 2002-11-26 | 2004-06-09 | 张福长 | Porous inorganic material and mfg mehtod thereof |
| CN1915894A (en) * | 2006-08-25 | 2007-02-21 | 华中科技大学 | Compound bricks of phosphogypsum, and producing method |
| CN101468905A (en) * | 2007-12-28 | 2009-07-01 | 刘贵堂 | Red mud unburned brick and preparation thereof |
-
2011
- 2011-11-23 CN CN2011103756106A patent/CN103130455A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1079452A (en) * | 1992-06-05 | 1993-12-15 | 山西铝业建设公司 | Red mud composite brick and preparation method |
| WO2001004426A1 (en) * | 1999-07-12 | 2001-01-18 | Okutama Kogyo Co., Ltd. | Lime-improved soil mortar and method for production thereof and fluidization treatment method using the same |
| CN1502588A (en) * | 2002-11-26 | 2004-06-09 | 张福长 | Porous inorganic material and mfg mehtod thereof |
| CN1915894A (en) * | 2006-08-25 | 2007-02-21 | 华中科技大学 | Compound bricks of phosphogypsum, and producing method |
| CN101468905A (en) * | 2007-12-28 | 2009-07-01 | 刘贵堂 | Red mud unburned brick and preparation thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104926230A (en) * | 2015-05-28 | 2015-09-23 | 武汉德利保生态技术有限公司 | Red mud water hard roadbase, roadbase material and preparation method of roadbase material |
| CN104926230B (en) * | 2015-05-28 | 2017-06-13 | 湖北炼石环保科技有限公司 | Red mud hydraulicity roadbase, road basement material and preparation method thereof |
| CN109057829A (en) * | 2018-09-06 | 2018-12-21 | 山东科技大学 | A kind of the siccative finished bag and method of built-in water pocket group |
| CN109057829B (en) * | 2018-09-06 | 2023-12-15 | 山东科技大学 | Dry material finished product bag with built-in water bag group and method |
| CN111548039A (en) * | 2020-04-22 | 2020-08-18 | 深圳大学 | Red mud geopolymer aggregate and preparation method thereof |
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Application publication date: 20130605 |