CN103936317B - Special composite fly ash for concrete and preparation method thereof - Google Patents
Special composite fly ash for concrete and preparation method thereof Download PDFInfo
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- CN103936317B CN103936317B CN201410131881.0A CN201410131881A CN103936317B CN 103936317 B CN103936317 B CN 103936317B CN 201410131881 A CN201410131881 A CN 201410131881A CN 103936317 B CN103936317 B CN 103936317B
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- 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
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Abstract
The invention provides the special composite fly ash for concrete and the preparation method thereof, which can achieve the purposes of fully utilizing resources, reducing cost, reducing the using amount of the fly ash and improving the workability of the concrete. The composite fly ash special for concrete comprises the following raw materials in percentage by mass: 55-65% of dolomite, 5% of lime slag, 15-20% of power plant furnace slag, 5% of fly ash, 5% of boiler furnace slag and 5-10% of waste brick slag. The preparation method comprises the following steps: (1) preparing and pretreating raw materials, and crushing various raw materials into granules with the particle size of less than or equal to 25 mm; (2) respectively conveying the raw materials to a mixing bin through metering conveying equipment for mixing; (3) and conveying the mixed raw materials to a vertical mill through a vibrating conveyor for grinding, and ensuring that the granularity is less than or equal to 45 mu m to obtain a finished product. The composite fly ash special for concrete provided by the invention is a substitute of admixture fly ash special for commercial concrete.
Description
Technical field
The invention belongs to concrete admixture field, especially concrete specific complex flyash and
Preparation method.
Background technology
The admixture that concrete market is main at present is flyash, and it is to be fired through high temperature by power plant's coal dust
Burn and collect；In concrete, adding coal ash can save part of cement and fine aggregate；Decrease and use water
Amount；Improve the service behaviour of the workability Concrete Structure of concrete batching system；Decrease Xu of concrete
Become；Reduce the heat of hydration, heat energy dilatancy；Improve concrete impervious ability；Increase the modified of concrete.
Along with the abatement day by day of natural resources, coal is non-renewable natural resources, flyash
Application is increasingly wider, and flyash also shows precious, and the market price goes up, and result in commerical ready-mixed concrete cost
Rise.
Summary of the invention
In order to make full use of resource, reduce cost, reduce the consumption of flyash, improve concrete
Workability, the present invention uses blend modification technology to propose concrete specific complex flyash and preparation method thereof.
Hereinafter, technical scheme is described.
Concrete specific complex flyash, it is characterised in that be prepared from the following materials, by quality
Percentage, raw material forms: dolomite 55%-65%, lime mud 5%, plant slag 15%-20%, powder
Coal ash 5%, boiler slag 5%, deposed brick slag 5%-10%；
Described deposed brick slag refers to: building or the useless brick of sandstone brickyard abandoned, then pulverizes and forms；
(1) raw material prepare: by mass percentage, dolomite 55%-65%, lime mud 5%,
Plant slag 15%-20%, flyash 5%, boiler slag 5%, the consumption of deposed brick slag 5%-10% prepare；
Various raw materials, through pretreatment, are broken into the graininess of particle diameter≤25mm；
(2) carry and mix: by metering conveyor, raw material being delivered to mixing bunker respectively, enter
Row mixing；
(3) grind: the raw material of mixing is delivered to vertical mill through jigging conveyer and grinds, protect
Card granularity≤45 μm, is finished product.
Beneficial effect: the present invention simulates pozzolanic material, use quarry refuse, fly ash in electric power plant,
The industrial residues such as boiler slag, lime mud, plant slag, deposed brick slag, use blend modification technology (be by
Two or more material in appropriate proportion, by being blended, is beyond one's reach obtaining homogenous material
In the case of performance guarantee intensity is constant, admix soft polyhybird material, the material saved material) concrete is special
Composite fly ash.Described concrete specific complex flyash is the admixture flyash being exclusively used in commerical ready-mixed concrete
Substitute.
Detailed description of the invention
The present invention is applicable to various high-performance commerical ready-mixed concrete；It is applicable to the basis coagulations such as traffic route
Soil construction；It is applicable to configure high fluidity and mixes earth and self-compacting concrete；It is applicable to keep for a long time collapsing
Degree of falling and make relatively long distance conveying engineering；It is applicable to the commodity of the mixing material configuration such as adding coal ash and slag
Concrete；It is applicable to decorate mixed earth and clear-water concrete engineering.
By following embodiment, express the present invention further.
Embodiment 1
The preparation method of concrete specific complex flyash, step is:
(1) raw material prepares: by mass percentage, dolomite 60%, lime mud 5%, power plant's stove
Slag 20%, flyash 5%, boiler slag 5%, the consumption of deposed brick slag 5% prepares；
Described deposed brick slag refers to: building or the useless brick of sandstone brickyard abandoned, then pulverizes and forms；
Described dolomite uses the barren rock in stone pit；
Various raw materials, through pretreatment, are broken into the graininess of particle diameter≤25mm；
(2) carry and mix: raw material being delivered to respectively mixing bunker by metering conveyor；
(3) grind: after mixing raw material through jigging conveyer to vertical mill dry production, it is ensured that granularity
≤ 45 μm, are finished product.
Embodiment 2
The preparation method of concrete specific complex flyash, step is:
(1) raw material prepares: by mass percentage, dolomite 63%, lime mud 5%, power plant's stove
Slag 16%, flyash 5%, boiler slag 5%, the consumption of deposed brick slag 6% prepares；
Described deposed brick slag refers to: building or the useless brick of sandstone brickyard abandoned, then pulverizes and forms；
Described dolomite uses the barren rock in stone pit；
Various raw materials, through pretreatment, are broken into the graininess of particle diameter≤25mm；
(2) carry and mix: raw material being delivered to respectively mixing bunker by metering conveyor；
(3) grind: after mixing raw material through jigging conveyer to vertical mill dry production, it is ensured that granularity
≤ 45 μm, are finished product.
Embodiment 3
The preparation method of concrete specific complex flyash, step is:
(1) raw material prepares: by mass percentage, dolomite 58%, lime mud 5%, power plant's stove
Slag 19%, flyash 5%, boiler slag 5%, the consumption of deposed brick slag 8% prepares；
Described deposed brick slag refers to: building or the useless brick of sandstone brickyard abandoned, then pulverizes and forms；
Various raw materials, through pretreatment, are broken into the graininess of particle diameter≤25mm；
(2) carry and mix: raw material being delivered to respectively mixing bunker by metering conveyor；
(3) grind: after mixing raw material through jigging conveyer to vertical mill dry production, it is ensured that granularity
≤ 45 μm, are finished product.
Above, list three embodiments, express the present invention.If by mass percentage, raw material
Composition: dolomite 55%-65%, lime mud 5%, plant slag 15%-20%, flyash 5%, pot
Stove slag 5%, deposed brick slag 5%-10%, should be within the scope of the present invention.
Describe the present invention in detail and have the advantage that as follows:
1, composite fly ash has volcano ash effect, micro aggregate effect, shape effect, makes concrete
Finer and close, improve concrete strength, impermeability and chemical etching, be that commerical ready-mixed concrete is indispensable
Power additive；
2 and concrete admixture there is good encompassing property；
3, commerical ready-mixed concrete specific complex flyash is the indispensable blending of high-performance water cement concrete
Material, the mobility protective capability with good diminishing and plasticizing capacity, cement slurry and fresh concrete is tall and erect
More；
4, adaptable to different cultivars cement, it is notable that concrete strengthens effect；
5, it is a kind of safe environmental type high-performance additives, meets national environmental protection policy and society
Can sustainable development direction；
6, by good water-reducing property, improve packing and the impermeability of concrete, increase coagulation
Soil intensity, extends concrete service life；
7, improve workability and the mobility retention time of concrete, there is good sprinkling irrigation performance；
Improve the workability of commerical ready-mixed concrete so that it is there is more preferable mobility, cohesiveness
And water-retaining property；
8, resisted shrinkage and the anti-crack ability of concrete are improved；
9, by the improvement of mobility, efficiency of construction, the energy-conservation energy and raw material are improved；
10, not chloride ion-containing, will not cause steel bar corrosion, thus extends concrete service life.
Claims (2)
1. concrete specific complex flyash, it is characterised in that be prepared from the following materials, by percent mass
Ratio, raw material forms: dolomite 55%-65%, lime mud 5%, plant slag 15%-20%, flyash
5%, boiler slag 5%, deposed brick slag 5%-10%；
Described deposed brick slag refers to: building or the useless brick of sandstone brickyard abandoned, then pulverizes and forms.
2. the preparation method of concrete specific complex flyash, step is:
(1) raw material prepares: by mass percentage, dolomite 55%-65%, lime mud 5%, power plant's stove
Slag 15%-20%, flyash 5%, boiler slag 5%, the consumption of deposed brick slag 5%-10% prepare；Various
Raw material, through pretreatment, is broken into the graininess of particle diameter≤25mm；
(2) carry and mix: by metering conveyor, raw material being delivered to mixing bunker respectively, mix；
(3) grind: the raw material of mixing is delivered to vertical mill through jigging conveyer and grinds, it is ensured that granularity
≤ 45 μm, are finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410131881.0A CN103936317B (en) | 2014-04-03 | 2014-04-03 | Special composite fly ash for concrete and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410131881.0A CN103936317B (en) | 2014-04-03 | 2014-04-03 | Special composite fly ash for concrete and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN103936317A CN103936317A (en) | 2014-07-23 |
| CN103936317B true CN103936317B (en) | 2016-08-24 |
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| CN201410131881.0A Active CN103936317B (en) | 2014-04-03 | 2014-04-03 | Special composite fly ash for concrete and preparation method thereof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108863134A (en) * | 2018-08-01 | 2018-11-23 | 十堰市郧阳区成林工贸有限责任公司 | Concrete tailored flour and preparation method thereof |
| CN108947295A (en) * | 2018-09-12 | 2018-12-07 | 十堰市郧阳区成林工贸有限责任公司 | Low-alkali concrete swelling agent and the preparation method and application thereof |
| CN113896510B (en) * | 2021-11-27 | 2022-10-28 | 广西晖龙科技有限公司 | Process for preparing light building material by using fly ash |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2445795A (en) * | 2007-01-18 | 2008-07-23 | Proficio Technology Ltd | A material formed from recycled asphalt and construction material and pulverised fuel ash |
| CN102503199A (en) * | 2011-11-08 | 2012-06-20 | 海南蓝岛环保产业股份有限公司 | Compound coal ash for concrete |
| CN102503198A (en) * | 2011-11-08 | 2012-06-20 | 海南蓝岛环保产业股份有限公司 | Compound green mud coal ash for concrete |
| CN102964075A (en) * | 2012-12-11 | 2013-03-13 | 黄凌 | Production process of compound coal ash applied to cement and concrete |
-
2014
- 2014-04-03 CN CN201410131881.0A patent/CN103936317B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2445795A (en) * | 2007-01-18 | 2008-07-23 | Proficio Technology Ltd | A material formed from recycled asphalt and construction material and pulverised fuel ash |
| CN102503199A (en) * | 2011-11-08 | 2012-06-20 | 海南蓝岛环保产业股份有限公司 | Compound coal ash for concrete |
| CN102503198A (en) * | 2011-11-08 | 2012-06-20 | 海南蓝岛环保产业股份有限公司 | Compound green mud coal ash for concrete |
| CN102964075A (en) * | 2012-12-11 | 2013-03-13 | 黄凌 | Production process of compound coal ash applied to cement and concrete |
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| CN103936317A (en) | 2014-07-23 |
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Address after: 1 groups of Yang Xi Pu Zhen Cai Shen Miao Cun 442500 Shiyan city of Hubei Province, Yunyang District Patentee after: Shiyan Yunyang district forest trade limited liability company Address before: 442500 Yunxian, Hubei, Yang Yang Town, Temple of God Patentee before: YUN COUNTY CHENGLIN INDUSTRY AND TRADE CO., LTD. |
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Effective date of registration: 20220512 Address after: 442000 phase I of dream town business incubator in xinglicheng resettlement area, Hongwei street, Zhangwan District, Shiyan City, Hubei Province Patentee after: Shiyan Yuanlong New Material Technology Co.,Ltd. Address before: 442500 group 1, caishenmiao village, yangxipu Town, Yunyang District, Shiyan City, Hubei Province Patentee before: SHIYAN YUNYANG CHENGLIN INDUSTRY AND TRADE CO.,LTD. |