CN106854068A - A kind of method that regeneration aggregate prepares concrete - Google Patents
A kind of method that regeneration aggregate prepares concrete Download PDFInfo
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- CN106854068A CN106854068A CN201510896151.4A CN201510896151A CN106854068A CN 106854068 A CN106854068 A CN 106854068A CN 201510896151 A CN201510896151 A CN 201510896151A CN 106854068 A CN106854068 A CN 106854068A
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- gangue
- concrete
- flyash
- surface area
- specific surface
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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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- Processing Of Solid Wastes (AREA)
Abstract
A kind of method that regeneration aggregate prepares concrete, geo-polymer recycled aggregate concrete is made using discarded building waste and geo-polymer, can make full use of building waste, and the advantage of geo-polymer is make use of again, is conducive to environmental protection.The present invention is first processed discarded building waste, the 5 ~ 25mm regenerated coarse aggregates for obtaining, then is analyzed treatment to slag, gangue, flyash.By self-igniting coal gangue block by pulverizing and jevigating, powder of the particle diameter less than 0.16mm is become, spontaneous combustion gangue powder specific surface area is more than 300 ㎡/kg；Granularity to flyash carries out detection process so that its specific surface area is more than 300 ㎡/kg；Waterglass, modulus is 1.5.According to regeneration aggregate：Gangue：Flyash：Slag：Exciting agent waterglass=10：2：1：1：0.56 carries out proportioning mixing, last then to be poured toward mixing external excitation agent solution, mixing water in mixer and being stirred until homogeneous, and conserves, and is molded.
Description
Technical field
The present invention relates to regeneration aggregate, more particularly to discard coagulation processing city regeneration aggregate and combine the method for preparing concrete, to realize the recycling of discarded concrete.
Background technology
About 6.5 hundred million square metres of the annual newly constructed house of China, every ten thousand square metres of about 500-600 tons of rubbish of discharge, nearly 40,000,000 tons of the building waste that annual only construction is produced and discharged.In addition, it is also what be can not be ignored that we should also be seen that Old building removes rubbish, every square metre of Old building removes about 0.5-0.7 tons of waste material, old room removes 10% calculating of the area by newly-built area, then house breaking rubbish is at 40,000,000 tons or so, the above two adds up to, about 80,000,000 tons of the annual yield of China's building waste.Secondly, the discharge of building waste also result in many social effects of pollution, have impact on the quality of life of the people.As can be seen here, the processing cost of the building waste of such flood tide well imagines, and the environmental problem for thus triggering is also apparent from (pollution such as to the occupancy, the destruction of landscape, dust ploughed to environment).Therefore, the regeneration of building waste oneself turn into the problem paid close attention to jointly of World Developed Countries construction and environmental administration, also thus triggered further investigation of the various countries to the regeneration of building waste.
Conventional cement in regenerated aggregate concrete is replaced using geo-polymer, geo-polymer recycled aggregate concrete is made, the advantage of geo-polymer can be made full use of, while also having recycled building waste, be conducive to environmental protection.
The content of the invention
The technical problems to be solved by the invention are to provide the combination of a kind of regeneration aggregate and geo-polymer, the method for preparing concrete.So that the cost of concrete product is greatly reduced, and the recycling of building waste can be realized.
The technical scheme that solution technical problem of the invention is used is as follows：
First, by discarded concrete it is processed obtained from 5 ~ 25mm regenerated coarse aggregates；
Secondly, self-igniting coal gangue volume, the influence of doping quantity of fly ash, four factors of slag and exciting agent Water glass content to geology polymer latex sand intensity are investigated.By the pole to orthogonal experiments；Difference, variance analysis, optimized mix-proportion parameter, to obtain the optimum mix proportion of geo-polymer：Gangue：Flyash：Slag exciting agent waterglass=2：1：1：0.56.
3rd, geo-polymer is made according to optimum mix proportion, regenerated coarse aggregate is added, make regeneration aggregate：Gangue：Flyash：Slag exciting agent waterglass=10：2：1：1：0.56, it is aided with potassium hydroxide, water, to be fabricated to geo-polymer recycled aggregate concrete.
Finally, then to made geo-polymer recycled aggregate concrete carry out, the basic mechanical property test such as anti-folding, resistance to compression, tension, wearability.If the mechanical property for testing out reaches requirement of engineering standard, large-scale production is carried out according to this match ratio, be such as unsatisfactory for requiring, then readjust the match ratio of concrete, repeated and tested, the concrete of requirement of engineering mechanical property is met until drawing.And by concrete mix now, as the match ratio of large-scale production.
Specific embodiment
5 ~ 25mm regenerated coarse aggregates, are then analyzed treatment to gangue, flyash, slag obtained from first processed to discarded concrete.By self-igniting coal gangue block by pulverizing and jevigating, powder of the particle diameter less than 0.16mm is become, spontaneous combustion gangue powder specific surface area is more than 300 ㎡/kg；Granularity to flyash carries out detection process so that its specific surface area is more than 300 ㎡/kg；Slag treatment, its specific surface area is more than
Waterglass, modulus is 1.5.According to regeneration aggregate：Gangue：Flyash：Slag exciting agent waterglass=10：2：1：1：0.56 carries out proportioning mixing.
The mixture for having matched is stirred, last, to be fabricated to geo-polymer recycled aggregate concrete, then to be poured toward mixing external excitation agent solution, mixing water in mixer and being stirred until homogeneous, and conserves, and is molded.
Claims (6)
1. a kind of regeneration aggregate prepares the raw material that the method for concrete is related to discarded building waste, slag, flyash, gangue, natural sand, coarse aggregate, bath of glass, potassium hydroxide and running water.
2. in prepared by the regenerated aggregate concrete described in, regeneration aggregate：Gangue：Flyash：Slag：Exciting agent waterglass=10：2：1：1：0.56.
3. as follows using the method and step that regenerated aggregate concrete is prepared described in claim 2：
1. by discarded concrete it is processed obtained from 5 ~ 25mm regenerated coarse aggregates, by gangue block by pulverizing and jevigating, become powder of the particle diameter less than 0.16mm, colliery powder specific surface area is more than 300 ㎡/kg；Granularity to flyash carries out detection process so that its specific surface area is more than 300 ㎡/kg；The levigate treatment of row is bought to slag, its specific surface area is more than 300 ㎡/kg；Waterglass, modulus is 1.5；According to regeneration aggregate：Gangue：Flyash：Slag：Exciting agent waterglass=10：2：1：1：0.56 carries out proportioning mixing；
2. toward mixing external excitation agent solution, mixing water in mixer and be stirred until homogeneous；
3. then all of above mixture is poured, is conserved, shaping.
4. using regenerated aggregate concrete is prepared described in claim 3, to gangue block by pulverizing and jevigating, powder of the particle diameter less than 0.16mm is become, colliery powder specific surface area is more than 300 ㎡/kg.
5. using regenerated aggregate concrete is prepared described in claim 3, the granularity to flyash carries out detection process so that its specific surface area is more than 300 ㎡/kg.
6. using preparing regenerated aggregate concrete described in claim 3, the 5 ~ 25mm regenerated coarse aggregates for obtaining processed to discarded concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510896151.4A CN106854068A (en) | 2015-12-08 | 2015-12-08 | A kind of method that regeneration aggregate prepares concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510896151.4A CN106854068A (en) | 2015-12-08 | 2015-12-08 | A kind of method that regeneration aggregate prepares concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106854068A true CN106854068A (en) | 2017-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510896151.4A Pending CN106854068A (en) | 2015-12-08 | 2015-12-08 | A kind of method that regeneration aggregate prepares concrete |
Country Status (1)
| Country | Link |
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| CN (1) | CN106854068A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112851220A (en) * | 2021-02-04 | 2021-05-28 | 清华大学 | Concrete prepared from industrial production waste and preparation method thereof |
| CN115572086A (en) * | 2022-09-28 | 2023-01-06 | 辽宁工程技术大学 | Spontaneous combustion coal gangue based geopolymer cementing material and preparation method thereof |
-
2015
- 2015-12-08 CN CN201510896151.4A patent/CN106854068A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112851220A (en) * | 2021-02-04 | 2021-05-28 | 清华大学 | Concrete prepared from industrial production waste and preparation method thereof |
| CN115572086A (en) * | 2022-09-28 | 2023-01-06 | 辽宁工程技术大学 | Spontaneous combustion coal gangue based geopolymer cementing material and preparation method thereof |
| CN115572086B (en) * | 2022-09-28 | 2023-10-27 | 辽宁工程技术大学 | Spontaneous combustion coal gangue base polymer cementing material and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170616 |
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| WD01 | Invention patent application deemed withdrawn after publication |