CN1517320A - Application of fluidized bed gangue slag of fluidized-bed furnace in-situ pouring concrete and concrete precast-concrete - Google Patents
Application of fluidized bed gangue slag of fluidized-bed furnace in-situ pouring concrete and concrete precast-concrete Download PDFInfo
- Publication number
- CN1517320A CN1517320A CNA031171583A CN03117158A CN1517320A CN 1517320 A CN1517320 A CN 1517320A CN A031171583 A CNA031171583 A CN A031171583A CN 03117158 A CN03117158 A CN 03117158A CN 1517320 A CN1517320 A CN 1517320A
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- CN
- China
- Prior art keywords
- concrete
- furnace slag
- fluidized bed
- boiling furnace
- bed coal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
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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
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/061—Ashes from fluidised bed furnaces
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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
Abstract
An application of the gangue slage from fluidized-bed furnace in in-situ pouring concrete or in precast-concrete members without traditional fine aggregate (natural sand and artificial sand) features that said slage, cement, lime and coarse aggregate are proportionally mixed.
Description
Affiliated technical field:
The present invention relates to material of construction, particularly a kind of fluidized bed coal spoil boiling furnace slag (ash) that utilizes replaces traditional engineering fine aggregate, comprises natural sand and artificial sand, the application in onsite concrete and concrete prefabricated element.
Background technology:
Slag is the products of combustion of Industrial Boiler (as coal electrician industry), and boiling furnace slag then is the products of combustion of fluidizing furnace.Fluidizing furnace claims the bubbling bed again, belongs to first-generation fluid-bed combustion furnace.Boiling Combustion is a kind of combustion technology between the grate firing of solid combustion and pulverized coal friring, its combustion principle is: burning crushing and classification particle by under the curtain air effect that under fire grate, is blown into-just so-called by air draught " fluidisation ", rolling up and down in the space of certain altitude above fire grate is similar to the motion of liquid boiling, and the fuel staging particle carries out perfect combustion just under a kind of so violent, rambling " boiling " state.Therefore, fluidizing furnace can use high ash, Gao Shui, low heat value, low-volatile etc. difficult to burn material inferior-as coal gangue, the thorax ash that boils is exactly a boiling furnace slag.The resulting boiling furnace slag of the coal gangue particle of boiling furnace combustion crushing and classification has low temperature (850 ℃～1000 ℃) and grills thoroughly innate advantage, thereby have certain activity and a corrosion resistance preferably, can be used in adulterant, and can be applied in onsite concrete and the concrete precast element.
At present, the discharging of fluidized bed coal spoil boiling furnace slag (ash) has taken a large amount of soils, and environment there is serious pollution, on the other hand, a large amount of use prefabricated hollow floors, card, thermal baffle, floor tile, sleeper and onsite concrete etc. in engineering construction, all need to use in a large number natural sand, cause soil erosion thus for river course etc., influenced the eubiosis, and the cost of natural sand and artificial sand is also high, and the concrete and the member of fluidized bed coal spoil boiling furnace slag (ash) preparation can guarantee structural strength safety, satisfy design, service requirements.
Summary of the invention:
The invention provides a kind of fluidized bed coal spoil boiling furnace slag (ash) that utilizes and replace traditional engineering fine aggregate, comprise natural sand and artificial sand, the technology of in onsite concrete and concrete precast element, using, this technology has solved for a long time, the pollution problem that fluidized bed coal spoil boiling furnace slag (ash) brings to environment, steady quality, cost is low, and can be widely used in prefabricated hollow floor, card, thermal baffle, floor tile, concrete prefabricated element and onsite concretes such as sleeper, under the condition that satisfies the engineering discipline requirement, broken the forbidden zone of people's traditional concepts, for a new road has been opened up in the comprehensive utilization of industrial residue.
Concrete technical scheme of the present invention is as follows:
The invention is characterized in: fluidized bed coal spoil boiling furnace slag (ash) replaces the ratio of traditional engineering fine aggregate in onsite concrete and concrete precast element be 20%-100%.
The accumulation unit weight of fluid coal spoil boiling furnace slag of the present invention (ash) is 800-1400 kilogram/cubic meter.
The size range of fluidized bed coal spoil boiling furnace slag of the present invention (ash) is the 0.045-8 millimeter.
Fluidized bed coal spoil boiling furnace slag of the present invention (ash) with the weight proportion of cement, lime putty, coarse aggregate is: 1.5-4: 1: 0-0.1: 2-6.
The degree of sinking to of lime putty of the present invention (denseness) is 8-14 centimetre.
Cement of the present invention is ordinary Portland cement or silicate cement, comprise from label be 325 to label be 525.
Coarse aggregate of the present invention is rubble, cobble and artificial coarse aggregate, and it piles up unit weight is 1600-2400 kilogram/cubic meter.
Fluidized bed coal spoil boiling furnace slag of the present invention (ash) is with after cement, lime putty mix, add rubble or other solids crude aggregates, adding water again forces to stir, make the concrete that is used for the concrete prefabricated element making or carries out concrete cast-in-situ, concrete prefabricated element comprises prefabricated hollow floor, flower lattice, thermal baffle, floor tile, sleeper, cover plate.
Fluidized bed coal spoil boiling furnace slag of the present invention (ash) can be selected the furnace bottom slag ash of climbing coal gangue power plant of coal (group) company 30,000 KW fluidizing furnaces for use.
The invention solves slag emission and environmental issue, waste residue fully utilized, and the new approaches and the concrete terms of settlement of the application of fluidized bed coal spoil boiling furnace slag (ash) are provided, therefore have following innovation point:
(1) boiling furnace slag is batch, the typing " product " of coal gangue power plant burning classification coal gangue particle, source and physicochemical property are stable than traditional fine aggregates such as river sand, mountain sand, river sand, mountain sand etc. be can solve because of changed by many unfavorable factor such as the place of production, season, granular size and grating, silt content and organic impurity to cause the concrete quality state unsettled technical barrier that fluctuates, thereby concrete quality and construction quality guaranteed.
(2) boiling furnace slag has low temperature and grills thoroughly character, and slag granules has Siq, Al203 isoreactivity composition, surface reaction can take place improve granular boundary intensity, and performances such as concrete strength are had long-term favourable influence, improves the concrete works weather resistance.
(3) the boiling furnace slag concrete has lower Young's modulus, and favourable alleviating and the development of limiting structure crack helps improving the building aseismicity performance simultaneously under the bigger condition of the temperature difference, and this point is particularly useful for Panxi Diqu.
(4) having alleviated working-yard examination allotment of labor does and the quality control difficulty.Because physicochemical property, steady sources have reduced the working-yard examination and joined workload, can reduce working-yard engineering quality control difficulty, boiling furnace slag is easier to be accepted by vast construction management personnel and user for the sand technology.Under the condition that satisfies the engineering discipline requirement, broken the forbidden zone of people's traditional concepts, for a new road has been opened up in the comprehensive utilization of industrial residue.
Embodiment:
Embodiment 1
Fluidized bed coal spoil boiling furnace slag of the present invention (ash) replaces the ratio of traditional engineering fine aggregate in onsite concrete and concrete precast element be 100%.
The accumulation unit weight of fluid coal spoil boiling furnace slag of the present invention (ash) is 1200 kilograms/cubic metre.
The mean particle size of fluidized bed coal spoil boiling furnace slag of the present invention (ash) is 2.5 millimeters.
Fluidized bed coal spoil boiling furnace slag of the present invention (ash) with the weight proportion of cement, lime putty, rubble or other solids crude aggregates is: 3: 1: 0.1: 2.
The degree of sinking to of lime putty of the present invention (denseness) is 12 centimetres.
Cement of the present invention is ordinary Portland cement, and its label is 525.
Coarse aggregate of the present invention is a rubble.
Fluidized bed coal spoil boiling furnace slag of the present invention (ash) is with after cement, lime putty mix, add rubble or other solids crude aggregates, adding water again forces to stir, make the concrete that is used for the concrete prefabricated element making or carries out concrete cast-in-situ, concrete prefabricated element comprises prefabricated hollow floor, flower lattice, thermal baffle, floor tile, sleeper, cover plate.
Embodiment 2
Fluidized bed coal spoil boiling furnace slag of the present invention (ash) replaces the ratio of traditional engineering fine aggregate in onsite concrete and concrete precast element be 80%.
The accumulation unit weight of fluid coal spoil boiling furnace slag of the present invention (ash) is 1050 kilograms/cubic metre.
The mean particle size of fluidized bed coal spoil boiling furnace slag of the present invention (ash) is 1.3 millimeters.
Fluidized bed coal spoil boiling furnace slag of the present invention (ash) with the weight proportion of cement, rubble or other solids crude aggregates is: 1.5-4: 1: 2-6.
The degree of sinking to of lime putty of the present invention (denseness) is 10 centimetres.
Cement of the present invention is ordinary Portland cement, and its label is 325.
Coarse aggregate of the present invention is an artificial aggregate.
After fluidized bed coal spoil boiling furnace slag of the present invention (ash) and the cement mixing, add rubble or other solids crude aggregates, adding water again forces to stir, make the concrete that is used to carry out the concrete prefabricated element making or carries out concrete cast-in-situ, concrete prefabricated element comprises prefabricated hollow floor, flower lattice, thermal baffle, floor tile, sleeper, cover plate.
Embodiment 3
Fluidized bed coal spoil boiling furnace slag of the present invention (ash) can be selected the furnace bottom slag ash of climbing coal gangue power plant of coal (group) company 30,000 KW fluidizing furnaces for use.Its physicals is: apparent state is greyish white particle, and piling up unit weight is 990-1050 kilogram/cubic meter, and its chemical ingredients mainly includes silicon-dioxide, aluminium sesquioxide etc.
This fluidized bed coal spoil boiling furnace slag (ash) belongs to (II) district sand, and grating is better, and water-intake rate is big than river sand, and voidage is suitable with river sand medium sand.
The chemical main component of lime putty is a calcium hydroxide.
Embodiment 4
After 20 kilograms of 1050 kilograms of fluidized bed coal spoil boiling furnace slags of the present invention (ash) and 500 kilograms of cement, lime putties mix, add 1780 kilograms in rubble or other solids crude aggregates, adding water again forces to stir, make concrete, can be made into the concrete prefabricated element that strength grade is C25 or carry out onsite concrete, concrete prefabricated element comprises prefabricated hollow floor, card, thermal baffle, floor tile, sleeper.
Embodiment 5
1150 kilograms of fluidized bed coal spoil boiling furnace slags of the present invention (ash) are with after 480 kilograms of cement mix, add 1800 kilograms of coarse aggregates, adding water again forces to stir, make the concrete that strength grade is C25, carry out the making of prefabricated components or carry out concrete cast-in-situ, concrete prefabricated element comprises prefabricated hollow floor, flower lattice, thermal baffle, floor tile, sleeper, cover plate.
The present invention utilizes fluidized bed coal spoil boiling furnace slag (ash) to replace traditional engineering fine aggregate, comprise natural sand and artificial sand, the technology of in onsite concrete and concrete precast element, using, this technology has solved for a long time, the pollution problem that fluidized bed coal spoil boiling furnace slag (ash) brings to environment, steady quality, cost is low, and can be widely used in prefabricated hollow floor, flower lattice, thermal baffle, floor tile, sleeper, concrete prefabricated element and onsite concretes such as cover plate, under the condition that satisfies the engineering discipline requirement, broken the forbidden zone of people's traditional concepts, for a new road has been opened up in the comprehensive utilization of industrial residue.
Claims (9)
1, the application of fluidized bed coal spoil boiling furnace slag in onsite concrete and concrete prefabricated element is characterized in that: fluidized bed coal spoil boiling furnace slag (ash) replaces the ratio of traditional engineering fine aggregate in onsite concrete and concrete precast element be 20%-100%.
2, the application of fluidized bed coal spoil boiling furnace slag according to claim 1 in onsite concrete and concrete prefabricated element is characterized in that: the accumulation unit weight of described fluid coal spoil boiling furnace slag (ash) is 800-1400 kilogram/cubic meter.
3, the application of fluidized bed coal spoil boiling furnace slag according to claim 1 in onsite concrete and concrete prefabricated element is characterized in that: the size range of described fluidized bed coal spoil boiling furnace slag (ash) is the 0.045-8 millimeter.
4, the application of fluidized bed coal spoil boiling furnace slag according to claim 1 in onsite concrete and concrete prefabricated element is characterized in that: described fluidized bed coal spoil boiling furnace slag (ash) with the weight proportion of cement, lime putty, rubble or other solids crude aggregates is: 1.5-4: 1: 0-0.1: 2-6.
5, the application of fluidized bed coal spoil boiling furnace slag according to claim 4 in onsite concrete and concrete prefabricated element is characterized in that: the degree of sinking to of described lime putty (denseness) is 8-14 centimetre.
6, the application of fluidized bed coal spoil boiling furnace slag according to claim 4 in onsite concrete and concrete prefabricated element, it is characterized in that: described cement is ordinary Portland cement or silicate cement, comprise from label be 325 to label be 525.
7, the application of fluidized bed coal spoil boiling furnace slag according to claim 4 in onsite concrete and concrete prefabricated element, it is characterized in that: described coarse aggregate is rubble, cobble and artificial coarse aggregate, and it piles up unit weight is 1600-2400 kilogram/cubic meter.
8, according to claim 1 or 4 application of described fluidized bed coal spoil boiling furnace slag in onsite concrete and concrete prefabricated element, it is characterized in that: described fluidized bed coal spoil boiling furnace slag (ash) is with after cement, lime putty mix, add rubble or other solids crude aggregates, adding water again forces to stir, make the concrete that is used to carry out the concrete prefabricated element making or carries out concrete cast-in-situ, concrete prefabricated element comprises prefabricated hollow floor, flower lattice, thermal baffle, floor tile, sleeper, cover plate.
9, according to claim 1 or 4 application of described fluidized bed coal spoil boiling furnace slag in onsite concrete and concrete prefabricated element, it is characterized in that: after described fluidized bed coal spoil boiling furnace slag (ash) and the cement mixing, add rubble or other solids crude aggregates, add water again and force to stir, make the concrete that is used to carry out the concrete prefabricated element making or carries out concrete cast-in-situ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031171583A CN1260162C (en) | 2003-01-14 | 2003-01-14 | Application of fluidized bed gangue slag of fluidized-bed furnace in-situ pouring concrete and concrete precast-concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031171583A CN1260162C (en) | 2003-01-14 | 2003-01-14 | Application of fluidized bed gangue slag of fluidized-bed furnace in-situ pouring concrete and concrete precast-concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1517320A true CN1517320A (en) | 2004-08-04 |
| CN1260162C CN1260162C (en) | 2006-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031171583A Expired - Fee Related CN1260162C (en) | 2003-01-14 | 2003-01-14 | Application of fluidized bed gangue slag of fluidized-bed furnace in-situ pouring concrete and concrete precast-concrete |
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| Country | Link |
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| CN (1) | CN1260162C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885599A (en) * | 2009-05-14 | 2010-11-17 | 中冶天工上海十三冶建设有限公司 | Premixed concrete of using coal gangue slag to replace partial natural sands |
| CN112279580A (en) * | 2020-09-16 | 2021-01-29 | 昆明理工大学 | Production method of on-site sprayed and hung foamed concrete wall |
-
2003
- 2003-01-14 CN CNB031171583A patent/CN1260162C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885599A (en) * | 2009-05-14 | 2010-11-17 | 中冶天工上海十三冶建设有限公司 | Premixed concrete of using coal gangue slag to replace partial natural sands |
| CN112279580A (en) * | 2020-09-16 | 2021-01-29 | 昆明理工大学 | Production method of on-site sprayed and hung foamed concrete wall |
| CN112279580B (en) * | 2020-09-16 | 2022-09-16 | 昆明理工大学 | Production method of on-site sprayed and hung foamed concrete wall |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1260162C (en) | 2006-06-21 |
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