CN102060496A - Rock ballast powder aerated concrete and preparation method thereof - Google Patents
Rock ballast powder aerated concrete and preparation method thereof Download PDFInfo
- Publication number
- CN102060496A CN102060496A CN2010105705072A CN201010570507A CN102060496A CN 102060496 A CN102060496 A CN 102060496A CN 2010105705072 A CN2010105705072 A CN 2010105705072A CN 201010570507 A CN201010570507 A CN 201010570507A CN 102060496 A CN102060496 A CN 102060496A
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- China
- Prior art keywords
- powder
- percent
- ballast powder
- concrete
- aerated concrete
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention provides rock ballast powder aerated concrete and a preparation method thereof. The aerated concrete comprises the following components in percentage by weight: 55-60 percent of rock ballast powder, 7-12 percent of cement, 15-20 percent of lime, 3-5 percent of desulfurization gypsum, 7-12 percent of blast furnace slag powder, 0.1-0.3 percent of calcium lignosulphonate and 0.05-0.09 percent of powdered aluminum paste. The method comprises the following steps of: blending water to the rock ballast powder and filtering; adding the desulfurization gypsum and the calcium lignosulphonate to filter slurry; then mixing the cement, the lime, the blast furnace slag powder and the powdered aluminum paste and stirring; molding in a casting die, foaming and cutting; and then autoclaving, curing and discharging from the kettle to obtain a finished product. In the invention, the rock ballast powder is used as a main raw material to prepare the aerated concrete, which can reduce the dependence on limited mineral resources and change waste into values, thus the aerated concrete has the advantages of certain strength, processibility, and the like; and the aerated concrete can be processed into products of building blocks, wall boards, roof panels, heat insulating plates, and the like and can be widely applied to industrial and civil buildings.
Description
Technical field
The present invention relates to a kind of concrete, related more specifically to a kind of ballast powder gas concrete and preparation method thereof, belong to building material field.
Background technology
Raising along with resource and environmental protection consciousness; traditional construction material is that the non-standing development that cost exchanges for more and more can not be satisfied social requirement with the mass consumption of resource and the havoc of ecotope, and the novel green building materials are developing direction of construction industry under new situations, the new concept.
Meanwhile, along with China's rapid development of economy, the construction of a large amount of Infrastructure continues to increase the demand of building materials again.According to incompletely statistics, 70% is materials for wall in China's building construction material, and the requirement of annual China materials for wall is about 750,000,000,000,000 blocks of standard squares.Because it is clay, Wingdale and sandstone that traditional materials for wall uses maximum resources, serious to soil mine resources consumption, and irrecoverable.Therefore develop less energy-consumption, novel wall material that thermal and insulating performance is good, not only can building function effectively be improved, in the buildings use, cut down the consumption of energy in the production link save energy.
Air-entrained concrete building block is a class novel wall material of using under construction and promoting at present.Air-entrained concrete building block light weight, thermal and insulating performance are better, but in present widely used air-entrained concrete building block, be starting material mainly with flyash, lime and cement, except flyash is the industrial waste beyond the region of objective existence, still need add starting material such as a large amount of unslaked limes and cement, bigger to the dependence of limited mineral wealth.
Summary of the invention
The object of the present invention is to provide a kind of ballast powder gas concrete and preparation method thereof, can reduce dependence, turn waste into wealth, and high-quality, cost are low limited mineral wealth.
To achieve these goals, the technical scheme taked of the present invention is as follows:
Ballast powder gas concrete of the present invention, its major ingredient are ballast powder, and concrete prescription is by weight: ballast powder 55-60%, cement 7-12%, lime 20-25%, desulfurated plaster 3-5%, ground granulated blast furnace slag 7-12%, calcium lignin sulphonate 0.2-0.3%, aluminium powder cream 0.07-0.09%.
Described cement comprises silicate cement, ordinary Portland cement, slag cement, pulverized fuel ash cement, trass cement or complex cement etc.
The preparation method of ballast powder gas concrete of the present invention, concrete steps are: at first ballast powder is converted the water stirring and made the ballast powder slurry that mass concentration is 55-60%, after being 100 purpose screen filtrations by the aperture, get its filter pulp and add desulfurated plaster and calcium lignin sulphonate evenly stirs, it is standby to pump into the slip hold-up vessel, add cement then, lime, ground granulated blast furnace slag and foaming agent aluminium powder cream, after common the stirring, inject mould, push 40 ℃～45 ℃ chamber precuring 1.5-2.5 hour of resting, treat to carry out when blank strength reaches 0.15～0.25MPa the moulding cutting, advance still, after the steam-cured 8-9 of product hour, go out still and pile up.
Wherein said lime uses after crossing 180 eye mesh screens, screen over-size≤15%.
It is main raw material(s) that the present invention utilizes the waste-ballast powder that is produced in the processing of stone factory course of processing, and the ballast powder incorporation reaches 55-60%, is new way of comprehensive utilization increase of ballast powder.Prepare ultimate compression strength 〉=5.0MPA, dry volume density≤625kg/m
3Aerated concrete products.
Wherein calcium lignin sulphonate (being called for short wooden calcium) is a kind of polycomponent high molecular polymer anion surfactant, extracts xylogen in the spent pulping liquor and produces.Outward appearance is a pale brown toner end material, aromatic odour slightly, and molecular weight generally between 800～10000, has very strong dispersiveness, cohesiveness, chelating.Generally be used as cement water reducing agent, can reduce the water consumption of concrete mix, reduce water cement ratio, improve workability, improve concrete strength, density and weather resistance.
Desulfurated plaster claims flue gas desulfurization gypsum, sulphur gypsum or FGD gypsum again, and main component is the same with the plaster of paris, is terra alba.Desulfurized gesso of flue gas is than fine particulate, about 40～60 μ m of median size, particle is short cylinder, fineness ratio is between 1.5～2.5, color is ash, yellow, the sulfate dihydrate calcium contents is higher to contain free-water generally 10%～15% generally all more than 90%, the impurity such as soluble salt that wherein also contain flying dust, organic carbon, lime carbonate, calcium sulfite and be made up of the vitriol or the muriate of sodium, potassium, magnesium.Being added in the gas concrete main effect is the slip multiviscosisty speed that delays of clearing up that suppresses lime, and improves the intensity of base substrate and goods, improves performances such as contraction.
Blast-furnace slag is the high-temperature fusion attitude slag of discharging in the pig iron smelting process.At present, nearly 500,000,000 tons of China's pig iron annual production, blast-furnace slag year nearly 2.5 hundred million tons of generation, the carbonic acid gas of annual blast furnace production process discharging is also about 2.5 hundred million tons.If a large amount of blast-furnace slags does not circulate and utilizes, caused the significant wastage of resource on the one hand; On the other hand, seriously contaminate environment has taken production site in a large number.Utilizing the levigate back of blast-furnace slag to produce ground granulated blast furnace slag as the manufacture of cement main raw material, is that present iron and steel enterprise realizes recycling economy, energy-saving and emission-reduction, and the effective way of effect is put forward in the utilization of waste material increment.After in concrete, mixing, can improve concrete workability, reduce hydration heat rate of heat release, improve concrete internal structure, improve concrete resistance to corrosion and weather resistance, concrete later strength of growth or the like.
Remarkable advantage of the present invention:
The present invention utilizes ballast powder to make gas concrete for main raw material, can reduce dependence, turn waste into wealth, have certain intensity and advantage such as can process limited mineral wealth, goods such as building block, wallboard, roof boarding, insulation, thermal baffle can be processed into, industry and covil construction can be widely used in.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
Ballast powder gas concrete of the present invention, its major ingredient are ballast powder, and concrete prescription is by weight: ballast powder 55-60%, cement 7-12%, lime 20-25%, desulfurated plaster 3-5%, ground granulated blast furnace slag 7-12%, calcium lignin sulphonate 0.2-0.3%, aluminium powder cream 0.07-0.09%.
At first ballast powder is converted the water stirring and made the ballast powder slurry that mass concentration is 55-60%, after being 100 purpose screen filtrations by the aperture, get its filter pulp and add desulfurated plaster and calcium lignin sulphonate evenly stirs, it is standby to pump into the slip hold-up vessel, add cement then, lime, ground granulated blast furnace slag and foaming agent aluminium powder cream, after common the stirring, inject mould, push 40 ℃～45 ℃ chamber precuring 1.5-2.5 hour of resting, treat to carry out when blank strength reaches 0.15～0.25MPa the moulding cutting, advance still, after the steam-cured 8-9 of product hour, go out still and pile up, concrete technical process as shown in Figure 1.The ballast powder gas concrete that obtains, its performance perameter is as follows:
1, in light weight:
The volume density of several material of construction commonly used of table 1 (kg/ m
3)
| Material | Ballast powder gas concrete | Structural clay tile | Hollow brick | Normal concrete | Dinas brickes |
| Index | 400-700 | 1600-1800 | 900-1700 | 2000-2400 | 1700-2000 |
As shown in Table 1, ballast powder gas concrete volume density be equivalent to hollow brick clay brick 1/3,1/5 of normal concrete also is lighter than goods such as hollow brick, structural clay tile.
2, good heat insulating:
The thermal conductivity of several material of construction commonly used of table 2 (w/m.k)
| Material | Ballast powder gas concrete | Structural clay tile | The hollow concrete building block | Normal concrete |
| Index | 0.09-0.22 | 0.43-0.81 | 1.0-1.046 | 1.5 |
As shown in Table 2, the thermal and insulating performance of ballast powder gas concrete is better than structural clay tile, normal concrete goods.
3, intensity height:
Ultimate compression strength 〉=5.0MPa meets the aerated concrete products intensity of GB11968-2006 premium grads standard.
4, have workability:
Have good workability, can saw, dig, bore, follow closely, and available suitable cohesive material bonding, favourable condition provided to building operation.
Claims (3)
1. ballast powder gas concrete, it is characterized in that: the major ingredient of described gas concrete is a ballast powder, concrete prescription is by weight: ballast powder 55-60%, cement 7-12%, lime 15-20%, desulfurated plaster 3-5%, ground granulated blast furnace slag 7-12%, calcium lignin sulphonate 0.1-0.3%, aluminium powder cream 0.05-0.09%.
2. the preparation method of a ballast powder gas concrete as claimed in claim 1, it is characterized in that: described preparation method's concrete steps are: at first ballast powder is converted the water stirring and made the ballast powder slurry that mass concentration is 55-60%, after being 100 purpose screen filtrations by the aperture, get its filter pulp and add desulfurated plaster and calcium lignin sulphonate evenly stirs, it is standby to pump into the slip hold-up vessel, add cement then, lime, ground granulated blast furnace slag and foaming agent aluminium powder cream, after common the stirring, inject mould, push 40 ℃～45 ℃ chamber precuring 1.5-2.5 hour of resting, treat to carry out when blank strength reaches 0.15～0.25MPa the moulding cutting, advance still, after the steam-cured 8-9 of product hour, go out still and pile up.
3. the preparation method of ballast powder gas concrete according to claim 2 is characterized in that: described lime uses after crossing 180 eye mesh screens, screen over-size≤15%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105705072A CN102060496B (en) | 2010-12-02 | 2010-12-02 | Rock ballast powder aerated concrete and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105705072A CN102060496B (en) | 2010-12-02 | 2010-12-02 | Rock ballast powder aerated concrete and preparation method thereof |
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| Publication Number | Publication Date |
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| CN102060496A true CN102060496A (en) | 2011-05-18 |
| CN102060496B CN102060496B (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105705072A Expired - Fee Related CN102060496B (en) | 2010-12-02 | 2010-12-02 | Rock ballast powder aerated concrete and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104591777A (en) * | 2015-01-13 | 2015-05-06 | 南安市国高建材科技有限公司 | Green environment-friendly autoclaved light-weight aerated concrete ultrathin sheet |
| CN106747174A (en) * | 2016-11-21 | 2017-05-31 | 同济大学 | Water-resistant type air-entrained concrete building block prepared by a kind of utilization ardealite hydraulicity composite gel material |
| CN108129161A (en) * | 2018-02-02 | 2018-06-08 | 曲水标威新型建材有限公司 | Composite aerated brick and preparation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01164774A (en) * | 1987-12-22 | 1989-06-28 | Asahi Glass Co Ltd | Production of lightweight aerated concrete |
| CN1087695A (en) * | 1992-12-02 | 1994-06-08 | 南京市建筑设计研究所 | Miniature hollow building block with calcium carbide dregs concrete |
| CN101244912A (en) * | 2007-10-31 | 2008-08-20 | 汤建新 | Production of autoclaved aerated building block material with crystal calcarea lime to partially partial substitute unslacked lime and method thereof |
| CN101434479A (en) * | 2008-12-03 | 2009-05-20 | 陈卓洋 | Environment-protective silt construction material |
-
2010
- 2010-12-02 CN CN2010105705072A patent/CN102060496B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01164774A (en) * | 1987-12-22 | 1989-06-28 | Asahi Glass Co Ltd | Production of lightweight aerated concrete |
| CN1087695A (en) * | 1992-12-02 | 1994-06-08 | 南京市建筑设计研究所 | Miniature hollow building block with calcium carbide dregs concrete |
| CN101244912A (en) * | 2007-10-31 | 2008-08-20 | 汤建新 | Production of autoclaved aerated building block material with crystal calcarea lime to partially partial substitute unslacked lime and method thereof |
| CN101434479A (en) * | 2008-12-03 | 2009-05-20 | 陈卓洋 | Environment-protective silt construction material |
Non-Patent Citations (2)
| Title |
|---|
| 《煤炭科技》 20010430 金洪振,武艳军,张云利,关文平 火烧矸石渣生产加气混凝土的研究 第46页第1.2节 1 第20卷, 第4期 * |
| 《粉煤灰综合利用》 20030630 白召军,张冰,孔德强 用电石渣改性湿排粉煤灰生产砌筑水泥试验 全文 1-3 , 第6期 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104591777A (en) * | 2015-01-13 | 2015-05-06 | 南安市国高建材科技有限公司 | Green environment-friendly autoclaved light-weight aerated concrete ultrathin sheet |
| CN106747174A (en) * | 2016-11-21 | 2017-05-31 | 同济大学 | Water-resistant type air-entrained concrete building block prepared by a kind of utilization ardealite hydraulicity composite gel material |
| CN108129161A (en) * | 2018-02-02 | 2018-06-08 | 曲水标威新型建材有限公司 | Composite aerated brick and preparation method |
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| Publication number | Publication date |
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| CN102060496B (en) | 2012-11-21 |
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Granted publication date: 20121121 Termination date: 20211202 |