CN108203286A - A kind of method that silicate haydite is prepared using discarded concrete - Google Patents
A kind of method that silicate haydite is prepared using discarded concrete Download PDFInfo
- Publication number
- CN108203286A CN108203286A CN201611184503.4A CN201611184503A CN108203286A CN 108203286 A CN108203286 A CN 108203286A CN 201611184503 A CN201611184503 A CN 201611184503A CN 108203286 A CN108203286 A CN 108203286A
- Authority
- CN
- China
- Prior art keywords
- concrete
- haydite
- silicate
- parts
- prepared
- Prior art date
- 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.)
- Pending
Links
- 239000004567 concrete Substances 0.000 title claims abstract description 42
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 18
- 238000001354 calcination Methods 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 235000013339 cereals Nutrition 0.000 claims abstract description 12
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 6
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 6
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims abstract description 6
- 235000013312 flour Nutrition 0.000 claims abstract description 6
- 239000004571 lime Substances 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 6
- 238000012216 screening Methods 0.000 claims abstract description 6
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 4
- 239000011372 high-strength concrete Substances 0.000 abstract description 2
- 239000004575 stone Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000000498 ball milling Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Classifications
-
- 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
- C04B28/10—Lime cements or magnesium oxide cements
-
- 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
- C04B18/16—Waste materials; Refuse from building or ceramic industry
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention discloses a kind of methods that silicate haydite is prepared using discarded concrete, include the following steps：(1) screening obtains the Aggregate of recycled concrete that grain size is 25 35mm after discarded concrete is crushed, and 550 650 DEG C of the material obtained in step (1) is calcined 0.5 1.6 hours, is then cooled to room temperature by (2)；(3) material after calcining in step (2) is put into ball mill and be milled to grain size as 5 10mm；(4) concrete powder obtained lime, silica flour, land plaster, step (3), mixing of blunging, mixture obtained above is put by (5) stirred in blender after stand (6) will above-mentioned material prepare balling-up after be put into steam pressure in still kettle and obtain silicate haydite.The silicate haydite that the present invention prepares can be used as lightweight aggregate in concrete, the stone in normal concrete being substituted, so as to prepare lightweight, high-strength concrete, available for load-carrying members.
Description
Technical field
The present invention relates to a kind of methods that silicate haydite is prepared using discarded concrete.
Background technology
According to relevant statistics, 35% discarded concrete is about discharged in China to root in Structural Engineering, remaining is pitch
Concrete the like waste.According to rough Statistics, only the rubbish of old building is removed just up to more than 4,000 ten thousand tons every year by China, wherein disintegrating
The occurrence quantity of old concrete is ten thousand tons about more than 1360, in addition, China's new cast about 2 billion cubic meter of concrete annual at present, because of quality
Reason and just up to 4,800,000 tons of the discarded concrete discharged.Discarded concrete is processed into recycled aggregate for regeneration concrete
Preparation not only solve problem of environmental pollution, also achieve resource reutilization, reduce the waste of resource and the energy.
Invention content
To solve the above-mentioned problems, the present invention provides a kind of method that silicate haydite is prepared using discarded concrete,
It is realized especially by following technical scheme：
A kind of method that silicate haydite is prepared using discarded concrete, is included the following steps：(1) discarded concrete is broken
Screening obtains the Aggregate of recycled concrete that grain size is 25-35mm after broken, and (2) forge 550-650 DEG C of the material obtained in step (1)
It burns 0.5-1.6 hours, is then cooled to room temperature；(3) material after calcining in step (2) is put into ball mill and carries out being milled to grain
Diameter is 5-10mm；(4) 40-50 parts of lime, 40-60 parts of silica flour, 5-10 parts of land plaster, step (3) are obtained by weight
10-15 parts of concrete powder is stirred with 30 parts of water, (5) by mixture obtained above be put into blender stir 1-1.5 it is small
When after stand 2-3 hours, (6) will above-mentioned material prepare balling-up after be put into steam pressure in still kettle and obtain silicate haydite.
Further, in the above-mentioned technical solutions, the calcining heating rate is 5 DEG C/min~10 DEG C/min.
Further, in the above-mentioned technical solutions, the condition of steam pressure is in step (6)：Heating rate is 5 DEG C/min~10
DEG C/min be warming up to 140~155 DEG C keep 1-1.6 hours, Temperature fall.
Invention advantageous effect
Method provided by the invention can effectively solve the problems, such as the recycling of building waste, and prepared by this method
Regeneration concrete is with short production cycle, the silicate haydite that the present invention prepares, and can be used as lightweight aggregate in concrete, substituting general
Stone in logical concrete, so as to prepare lightweight, high-strength concrete, available for load-carrying members.
Specific embodiment
With reference to embodiment, the invention will be further described.
Embodiment 1
A kind of method that silicate haydite is prepared using discarded concrete, is included the following steps：(1) discarded concrete is broken
Screening obtains the Aggregate of recycled concrete that grain size is 25-35mm, 550 DEG C of calcinings of material that (2) will obtain in step (1) after broken
0.5 hour, calcining heating rate was 5 DEG C/min.Then it is cooled to room temperature；(3) material after calcining in step (2) is put into ball milling
Carry out being milled to grain size in machine as 5-10mm；(4) by weight by 40 parts of lime, 60 parts of silica flour, 5 parts of land plaster, step (3)
15 parts of obtained concrete powder is stirred with 30 parts of water, and it is small that mixture obtained above is put into blender stirring 1 by (5)
When after stand 2 hours, (6) will above-mentioned material prepare balling-up after be put into steam pressure in still kettle and obtain silicate haydite.In step (6)
The condition of steam pressure is：Heating rate is warming up to 140~155 DEG C for 5 DEG C/min~10 DEG C/min and is kept for 1-1.6 hours, drops naturally
Temperature.
Embodiment 2
A kind of method that silicate haydite is prepared using discarded concrete, is included the following steps：(1) discarded concrete is broken
Screening obtains the Aggregate of recycled concrete that grain size is 25-35mm, 650 DEG C of calcinings of material that (2) will obtain in step (1) after broken
0.5 hour, calcining heating rate was 10 DEG C/min.Then it is cooled to room temperature；(3) material after calcining in step (2) is put into ball
Carry out being milled to grain size in grinding machine as 5-10mm；(4) by weight by 50 parts of lime, 60 parts of silica flour, 10 parts of land plaster, step
(3) 10 parts of the concrete powder obtained is stirred with 30 parts of water, and mixture obtained above is put into blender and stirs by (5)
3 hours are stood after 1.5 hours, (6) will be put into steam pressure in still kettle after above-mentioned material preparation balling-up and obtain silicate haydite.Step
(6) condition of steam pressure is in：Heating rate is warming up to 155 DEG C for 10 DEG C/min and is kept for 1.6 hours, Temperature fall.
Embodiment 3
A kind of method that silicate haydite is prepared using discarded concrete, is included the following steps：(1) discarded concrete is broken
Screening obtains the Aggregate of recycled concrete that grain size is 25-35mm, 650 DEG C of calcinings of material that (2) will obtain in step (1) after broken
0.5 hour, calcining heating rate was 6 DEG C/min.Then it is cooled to room temperature；(3) material after calcining in step (2) is put into ball milling
Carry out being milled to grain size in machine as 5-10mm；(4) by weight by 45 parts of lime, 50 parts of silica flour, 7 parts of land plaster, step (3)
12 parts of obtained concrete powder is stirred with 30 parts of water, and mixture obtained above is put into blender and stirs 1.5 by (5)
2.5 hours are stood after hour, (6) will be put into steam pressure in still kettle after above-mentioned material preparation balling-up and obtain silicate haydite.Step
(6) condition of steam pressure is in：Heating rate is warming up to 140 DEG C for 8 DEG C/min and is kept for 1.5 hours, Temperature fall.
The preferred embodiment of the present invention described in detail above.It should be appreciated that those of ordinary skill in the art without
Creative work is needed according to the present invention can to conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are analysed under this invention's idea by logic minute on the basis of existing technology, reasoning or limited experiment can obtain
Technical solution, all should be in the protection domain being defined in the patent claims.
Claims (3)
- A kind of 1. method that silicate haydite is prepared using discarded concrete, it is characterised in that include the following steps：It (1) will be discarded Screening obtains the Aggregate of recycled concrete that grain size is 25-35mm, the material that (2) will obtain in step (1) after concrete disintegrating 550-650 DEG C is calcined 0.5-1.6 hours, is then cooled to room temperature；(3) material after calcining in step (2) is put into ball mill Grain size be milled to as 5-10mm；(4) by weight by 40-50 parts of lime, 40-60 parts of silica flour, 5-10 parts of land plaster, step Suddenly (3) obtain 10-15 parts of concrete powder is stirred with 30 parts of water, and mixture obtained above is put into blender by (5) Stirring stands 2-3 hours after 1-1.5 hours, and (6) will be put into steam pressure in still kettle after above-mentioned material preparation balling-up and obtain silicate Haydite.
- A kind of 2. method that silicate haydite is prepared using discarded concrete according to claim 1, it is characterised in that institute The calcining heating rate stated is 5 DEG C/min~10 DEG C/min.
- A kind of 3. method that silicate haydite is prepared using discarded concrete according to claim 1, it is characterised in that step Suddenly the condition of steam pressure is in (6)：Heating rate is warming up to 140~155 DEG C for 5 DEG C/min~10 DEG C/min and is kept for 1-1.6 hours, Temperature fall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611184503.4A CN108203286A (en) | 2016-12-20 | 2016-12-20 | A kind of method that silicate haydite is prepared using discarded concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611184503.4A CN108203286A (en) | 2016-12-20 | 2016-12-20 | A kind of method that silicate haydite is prepared using discarded concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108203286A true CN108203286A (en) | 2018-06-26 |
Family
ID=62603236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611184503.4A Pending CN108203286A (en) | 2016-12-20 | 2016-12-20 | A kind of method that silicate haydite is prepared using discarded concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108203286A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109293371A (en) * | 2018-09-30 | 2019-02-01 | 柳晶（长春）环保科技有限公司 | A kind of technique preparing haydite using building waste |
| CN109695059A (en) * | 2019-01-24 | 2019-04-30 | 长江师范学院 | A kind of preparation method of crystal whisker of gypsum |
| CN114907085A (en) * | 2022-04-15 | 2022-08-16 | 上海建工建材科技集团股份有限公司 | Building regenerated micro-powder non-fired ceramsite and preparation method thereof |
-
2016
- 2016-12-20 CN CN201611184503.4A patent/CN108203286A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109293371A (en) * | 2018-09-30 | 2019-02-01 | 柳晶（长春）环保科技有限公司 | A kind of technique preparing haydite using building waste |
| CN109293371B (en) * | 2018-09-30 | 2021-07-20 | 柳晶（长春）环保科技有限公司 | Process for preparing ceramsite by using construction waste |
| CN109695059A (en) * | 2019-01-24 | 2019-04-30 | 长江师范学院 | A kind of preparation method of crystal whisker of gypsum |
| CN114907085A (en) * | 2022-04-15 | 2022-08-16 | 上海建工建材科技集团股份有限公司 | Building regenerated micro-powder non-fired ceramsite and preparation method thereof |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180626 |
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| WD01 | Invention patent application deemed withdrawn after publication |