CN102701622A - Preparation method of recycled aggregate from building wastes - Google Patents
Preparation method of recycled aggregate from building wastes Download PDFInfo
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- CN102701622A CN102701622A CN2012100088846A CN201210008884A CN102701622A CN 102701622 A CN102701622 A CN 102701622A CN 2012100088846 A CN2012100088846 A CN 2012100088846A CN 201210008884 A CN201210008884 A CN 201210008884A CN 102701622 A CN102701622 A CN 102701622A
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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 discloses a preparation method of recycled aggregate from building wastes, relating to the technical field of building raw materials. The preparation method comprises the following steps of: adopting a waste utilization technology, taking waste concrete, waste bricks and waste sand-lime building materials, which are smaller than 690mm, as raw materials, determining the quantity according to needs, crushing, further drying till the water content is not more than 0.5%, and then performing graded screening so as to prepare the recycled aggregate with the particle sizes of 0.075-0.15 mm, 0.15-0.3 mm, 0.3-0.6 mm, 0.6-1.18 mm, 1.18-2.36 mm, 2.36-4.75 mm, 4.75-10 mm and 10-32 mm and store the recycled aggregate with the different particle sizes respectively, wherein a magnet is applied in the graded screening process for removing metal as well as removing wood chips, plastics and other sundries according to the specific gravity. The recycled aggregate can be used as a building raw material. The preparation method has the advantages of protecting natural resources, saving labor, saving time, saving effort, realizing low cost, changing the wastes into valuable things, and meeting the requirements of low-carbon production and low-carbon living.
Description
Technical field
The preparation method of building castoff regeneration aggregate of the present invention relates to building materials technology field; Be particularly related to building materials raw material technical field; Be specifically related to preparing method's technical field of building castoff regeneration aggregate.
Background technology
With regard to building materials and building materials raw material, everybody is not strange, and specific to premixing mortar, extraordinary mortar, concrete, air-entrained concrete building block, urban pavement brick, everybody is not strange yet, and especially building mortar, concrete are all many is basic raw material with river sand.Along with the fast development of urban construction, mortar and concrete demand are increased day by day, and then the exploitation of river sand is also increased day by day, resource is limited after all, river sand also can be fewer and feweri thereupon, more will drop into lot of manpower and material resources.River sand (promptly by salvaging the sand of coming out in the ship Congjiang, river, the lake, its price is very high), river sand will be dried before using simultaneously; Because river sand water cut is 98%, about moisture approximately 70-80%, produces and to be less than 0.5% behind the natural air drying with the sand water cut; So river sand dried to spend a large amount of expenses; Not only consume a large amount of coal resources, freight charges are high, and substantial appreciation of prices.Simultaneously, on the other hand, the old building removal amount in city is increasing, and the waste after no doubt removing is also more and more, and concentrated stacking has taken increasing soil.The get off dumping of building of existing removal is increasing, handles seldom, and solid refuse is such as concrete, masonry etc.; Be difficult for decomposing, pass through the long duration and could natural decomposition fall, even be used for filling out hole, laying; Also can be excessive and can't dissolve owing to volume, not only the land occupation resource also is unfavorable for environmental greening; And of long duration, bury in underground, be unfavorable for vegetation growth and hinder soil to the filteration of underground water resources etc.Conclusion is got up, and existing known technology with deficiency, defective and drawback that present situation exists is: on the one hand, waste natural resource, time-consuming effort and increased extra-expense, price constantly rises violently and expense is high; On the other hand, refuse accumulation progressively increases and can't dissolve, the land occupation resource, environment impacted; All do not meet the requirement of low-carbon (LC) production and low-carbon (LC) life.Seeing that contriver's expertise is with abundant working experience and to the excelsior unremitting pursue of cause; The present invention is exactly conscientious and on sufficient investigation, understanding, analysis, summary, the above-mentioned existing known technology of research and the present situation basis; With " utilization of waste material " gordian technique, deficiency, defective and drawback that existing known technology and present situation exist succeed in developing in order to overcome and to solve.Through the present invention, make refuse obtain reasonable utilization, turn waste into wealth, meet environmental protection, reduced expense significantly, accomplished the life of low-carbon (LC) production and low-carbon (LC), made for Sustainable development contribution should have been arranged.
Summary of the invention
The present invention is with " utilization of waste material " gordian technique, and the preparation method of building castoff regeneration aggregate is provided, and makes " regeneration aggregate " building material raw produce; The present invention is being raw material less than the waste concrete of 690mm, useless brick, antiquated sand ash building castoff; Set amount on demand; Dry moisture again and carry out the grade screening after smaller or equal to 0.5% through pulverizing; In the grade screening process, use magnet and remove metal and remove wood chip and plastics and foreign material, store respectively thereby be prepared into the regeneration aggregate that particle is respectively 0.075-0.15mm, 0.15-0.3mm, 0.3-0.6mm, 0.6-1.18mm, 1.18-2.36mm, 2.36-4.75mm, 4.75-10mm, 10-32mm with the mode of proportion size.
The purpose that reaches through the present invention is: on the one hand, the protection natural resource, saving of work and time is laborsaving and eliminate extra-expense, the price that do not receive resource influences and expense is low; On the other hand, effectively dissolve refuse and turn waste into wealth, save land resources, effectively protect environment; Reduce cost and accomplish the requirement that meets the life of low-carbon (LC) production and low-carbon (LC).
For realizing above-mentioned purpose, technical scheme provided by the invention is:
A kind of preparation method of building castoff regeneration aggregate; Being raw material less than the waste concrete of 690mm, useless brick, antiquated sand ash building castoff; Set amount on demand; Dry moisture again and carry out the grade screening after smaller or equal to 0.5% through pulverizing; In the grade screening process, use magnet and remove metal and remove wood chip and plastics and foreign material, thereby be prepared into the regeneration aggregate that particle is respectively 0.075-0.15mm, 0.15-0.3mm, 0.3-0.6mm, 0.6-1.18mm, 1.18-2.36mm, 2.36-4.75mm, 4.75-10mm, 10-32mm, regeneration aggregate is stored respectively by the particle difference with the mode of proportion size.
The preparation method of described building castoff regeneration aggregate, said regeneration aggregate in the preparation of selecting to be applied to the regeneration aggregate premixing mortar, be applied in the preparation of the extraordinary mortar of regeneration aggregate, be applied in the preparation of regenerated aggregate concrete, be applied in the preparation of regeneration aggregate air-entrained concrete building block, be applied to a kind of in the preparation of regeneration aggregate urban pavement brick.
Owing to adopted technical scheme provided by the present invention; Because the present invention has adopted " utilization of waste material " gordian technique; Because the present invention is being raw material less than the waste concrete of 690mm, useless brick, antiquated sand ash building castoff; Set amount on demand; Dry moisture again and carry out the grade screening after smaller or equal to 0.5% through pulverizing; In the grade screening process, use magnet and remove surplus metal and remove wood chip and plastics and foreign material, store respectively thereby be prepared into the regeneration aggregate that particle is respectively 0.075-0.15mm, 0.15-0.3mm, 0.3-0.6mm, 0.6-1.18mm, 1.18-2.36mm, 2.36-4.75mm, 4.75-10mm, 10-32mm with the mode of proportion size.Make the present invention compare with existing known technology and present situation, the beneficial effect of acquisition is:
1, the present invention adopts " utilization of waste material " gordian technique, and a kind of preparation method of building castoff regeneration aggregate is provided.
2, use preparation method of the present invention, prepared " regeneration aggregate " building materials raw material product innovation.
3, " regeneration aggregate " of the present invention, 1/10th also low than river sand price, and also the 6-8 that the oven dry expense is lower than river sand oven dry expense is doubly, has also saved a large amount of various expenses such as transportation simultaneously, has obtained the low beneficial effect of expense.
4, the preparation of " regeneration aggregate " according to the invention, the building castoff of using fully with waste concrete, useless brick, antiquated sand ash is a raw material, and building castoff is turned waste into wealth.
5, the success of " regeneration aggregate " according to the invention preparation has solved the problem of dissolving of building castoff, has accomplished effective protection environment.
6, natural resource have effectively been protected in the preparation of " regeneration aggregate " according to the invention, have accomplished the life of low-carbon (LC) production and low-carbon (LC), and having made for Sustainable development to have contribution.
7, " regeneration aggregate " of the present invention building materials raw material product innovation; Can be applicable in the preparation of regeneration aggregate premixing mortar or be applied in the preparation of the extraordinary mortar of regeneration aggregate or be applied in the preparation of regenerated aggregate concrete or be applied in the preparation of regeneration aggregate air-entrained concrete building block or be applied to obtain the beneficial effect of applied range in the preparation of regeneration aggregate urban pavement brick.
8, the preparation of " regeneration aggregate " according to the invention, conceive scientific and reasonable, method is simple, effect stability is reliable, helps wide popularization and application.
Description of drawings
Figure of description is the technological operation step window synoptic diagram of the specific embodiment of the invention.
Embodiment
Below in conjunction with Figure of description, the present invention is described in detail.Shown in Figure of description:
A kind of preparation method of building castoff regeneration aggregate; Being raw material less than the waste concrete of 690mm, useless brick, antiquated sand ash building castoff; Set amount on demand; Dry moisture again and carry out the grade screening after smaller or equal to 0.5% through pulverizing; In the grade screening process, use magnet and remove metal and remove wood chip and plastics and foreign material, thereby be prepared into the regeneration aggregate that particle is respectively 0.075-0.15mm, 0.15-0.3mm, 0.3-0.6mm, 0.6-1.18mm, 1.18-2.36mm, 2.36-4.75mm, 4.75-10mm, 10-32mm, regeneration aggregate is stored respectively by the particle difference with the mode of proportion size.
The preparation method of described building castoff regeneration aggregate, said regeneration aggregate in the preparation of selecting to be applied to the regeneration aggregate premixing mortar, be applied in the preparation of the extraordinary mortar of regeneration aggregate, be applied in the preparation of regenerated aggregate concrete, be applied in the preparation of regeneration aggregate air-entrained concrete building block, be applied to a kind of in the preparation of regeneration aggregate urban pavement brick.
In above-mentioned practical implementation process: to said regeneration aggregate respectively with the preparation that is applied to the regeneration aggregate premixing mortar in, be applied in the preparation of the extraordinary mortar of regeneration aggregate, be applied in the preparation of regenerated aggregate concrete, be applied in the preparation of regeneration aggregate air-entrained concrete building block, be applied to implement in the preparation of regeneration aggregate urban pavement brick; All received the good result of expection.
The present invention has carried out property on probation examination after making and finishing; In property examination on probation, evaluate and consistently think through the expert: regeneration aggregate succeed in developing, building castoff is turned waste into wealth, solved the problem of dissolving of waste; Natural resource have been protected effectively; Can be applicable to making as basic material, effectively reduced production cost, accomplished the life of protection environment and low-carbon (LC) production and low-carbon (LC) regeneration aggregate premixing mortar, the extraordinary mortar of regeneration aggregate, regenerated aggregate concrete, regeneration aggregate air-entrained concrete building block, regeneration aggregate urban pavement brick; For due contribution has been made in Sustainable development; Its design is scientific and reasonable, method is simple, effect stability is reliable, has the extremely social value of reality, has application value widely.Through examination on probation, obtained the good result of expection.
More than being merely preferred embodiment of the present invention, is not that the present invention is done any pro forma restriction; But the those of ordinary skill of all industry is all implemented with the above shown in the by specification accompanying drawing swimmingly; But the equivalent variations of making differentiation not breaking away from technical scheme of the present invention is equivalent embodiment of the present invention, all still belongs to technical scheme of the present invention.
Claims (2)
1. the preparation method of a building castoff regeneration aggregate; It is characterized in that: being raw material less than the waste concrete of 690mm, useless brick, antiquated sand ash building castoff; Set amount on demand; Dry moisture again and carry out the grade screening after smaller or equal to 0.5% through pulverizing; In the grade screening process, use magnet and remove metal and remove wood chip and plastics and foreign material, thereby be prepared into the regeneration aggregate that particle is respectively 0.075-0.15mm, 0.15-0.3mm, 0.3-0.6mm, 0.6-1.18mm, 1.18-2.36mm, 2.36-4.75mm, 4.75-10mm, 10-32mm, regeneration aggregate is stored respectively by the particle difference with the mode of proportion size.
2. the preparation method of building castoff regeneration aggregate according to claim 1 is characterized in that: said regeneration aggregate in the preparation of selecting to be applied to the regeneration aggregate premixing mortar, be applied in the preparation of the extraordinary mortar of regeneration aggregate, be applied in the preparation of regenerated aggregate concrete, be applied in the preparation of regeneration aggregate air-entrained concrete building block, be applied to a kind of in the preparation of regeneration aggregate urban pavement brick.
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| CN2012100088846A CN102701622A (en) | 2012-01-13 | 2012-01-13 | Preparation method of recycled aggregate from building wastes |
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| CN2012100088846A CN102701622A (en) | 2012-01-13 | 2012-01-13 | Preparation method of recycled aggregate from building wastes |
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| CN102701622A true CN102701622A (en) | 2012-10-03 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011853A (en) * | 2012-11-27 | 2013-04-03 | 浙江铭德新材科技有限公司 | Manufacturing method of magnesium-calcium regeneration brick |
| CN103159422A (en) * | 2013-04-19 | 2013-06-19 | 上海寰保渣业处置有限公司 | Concrete formed by partially replacing natural sand with mechanical sand produced by utilizing construction decoration wastes |
| CN103913044A (en) * | 2014-04-09 | 2014-07-09 | 广州世正环保科技发展有限公司 | Drying and homogenizing method for comprehensively utilizing materials of construction waste |
| CN104099845A (en) * | 2014-06-30 | 2014-10-15 | 中国石油集团川庆钻探工程有限公司 | Highway pavement structure taking building rubbish as aggregate |
| CN104609755A (en) * | 2014-07-29 | 2015-05-13 | 蒋博 | Construction waste pulverized powder and application thereof |
| CN104788033A (en) * | 2015-04-15 | 2015-07-22 | 重庆市环卫控股（集团）有限公司 | Building waste recycling method |
| CN105776927A (en) * | 2016-04-13 | 2016-07-20 | 广东省建筑科学研究院集团股份有限公司 | Inorganic lightweight aggregate prepared from inorganic heat insulation material waste and preparing method thereof |
| CN107857494A (en) * | 2017-09-22 | 2018-03-30 | 悉地（苏州）勘察设计顾问有限公司 | A kind of method for sieving of two-ash broken stones and a kind of modified cement |
| CN108017335A (en) * | 2017-11-27 | 2018-05-11 | 固岩科技发展有限公司 | Construction method of the foam concrete based on discarded red brick powder in highway high roadbed |
| CN113526893A (en) * | 2021-08-02 | 2021-10-22 | 北京建工资源循环利用投资有限公司 | Construction waste recycled aggregate, preparation method and application thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011853A (en) * | 2012-11-27 | 2013-04-03 | 浙江铭德新材科技有限公司 | Manufacturing method of magnesium-calcium regeneration brick |
| CN103159422A (en) * | 2013-04-19 | 2013-06-19 | 上海寰保渣业处置有限公司 | Concrete formed by partially replacing natural sand with mechanical sand produced by utilizing construction decoration wastes |
| CN103913044A (en) * | 2014-04-09 | 2014-07-09 | 广州世正环保科技发展有限公司 | Drying and homogenizing method for comprehensively utilizing materials of construction waste |
| CN103913044B (en) * | 2014-04-09 | 2015-12-09 | 广州世正环保科技发展有限公司 | A kind of dry homogenization process of building castoff comprehensive utilization material |
| CN104099845A (en) * | 2014-06-30 | 2014-10-15 | 中国石油集团川庆钻探工程有限公司 | Highway pavement structure taking building rubbish as aggregate |
| CN104609755A (en) * | 2014-07-29 | 2015-05-13 | 蒋博 | Construction waste pulverized powder and application thereof |
| CN104788033A (en) * | 2015-04-15 | 2015-07-22 | 重庆市环卫控股（集团）有限公司 | Building waste recycling method |
| CN105776927A (en) * | 2016-04-13 | 2016-07-20 | 广东省建筑科学研究院集团股份有限公司 | Inorganic lightweight aggregate prepared from inorganic heat insulation material waste and preparing method thereof |
| CN107857494A (en) * | 2017-09-22 | 2018-03-30 | 悉地（苏州）勘察设计顾问有限公司 | A kind of method for sieving of two-ash broken stones and a kind of modified cement |
| CN107857494B (en) * | 2017-09-22 | 2020-05-19 | 悉地（苏州）勘察设计顾问有限公司 | Screening method of lime-fly-ash crushed stone and modified cement |
| CN108017335A (en) * | 2017-11-27 | 2018-05-11 | 固岩科技发展有限公司 | Construction method of the foam concrete based on discarded red brick powder in highway high roadbed |
| CN113526893A (en) * | 2021-08-02 | 2021-10-22 | 北京建工资源循环利用投资有限公司 | Construction waste recycled aggregate, preparation method and application thereof |
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Effective date of registration: 20151228 Address after: Henggang Ma Wu Cun ten Lane in Longgang District of Shenzhen City, Guangdong Province, No. 5 518115 Applicant after: Fu Kailei Applicant after: Zhang Changxue Address before: 101, No. 413, No. 518115, quadruple Road, Henggang street, Longgang District, Guangdong, Shenzhen Applicant before: Shenzhen Weilun Building Materials Co.,Ltd. |
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Inventor after: Fu Kailei Inventor after: Wang Choufeng Inventor before: Sun Weilun Inventor before: Wang Choufeng |
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Application publication date: 20121003 |