CN104556939A - Construction waste dust and preparation method thereof - Google Patents
Construction waste dust and preparation method thereof Download PDFInfo
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- CN104556939A CN104556939A CN201410829404.1A CN201410829404A CN104556939A CN 104556939 A CN104556939 A CN 104556939A CN 201410829404 A CN201410829404 A CN 201410829404A CN 104556939 A CN104556939 A CN 104556939A
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- China
- Prior art keywords
- building waste
- gypsum
- construction waste
- construction
- waste dust
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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
The invention relates to construction waste dust and a preparation method thereof, and belongs to the technical field of construction materials. The construction waste dust is prepared from the following raw materials together with a chemical excitant in percentage by mass: 80-95% of construction wastes and 7-20% of gypsum, wherein the use amount of the chemical excitant accounts for 0.01-0.06% of the total amount of the construction wastes and gypsum; the construction wastes are construction waste bricks or concrete blocks of which metal and other impurities are removed. The inspection on the construction waste dust produced from the raw materials by using the preparation method shows that various technical indexes of the construction waste dust meet and even exceed the stand of the GB/T1596-2005 Fly Ash Used for Cement and Concrete, and the property of the construction waste dust is superior to that of fly ash. The construction waste dust can replace fly ash and is widely applicable to concrete and cement products. As a great amount of industrial wastes are recycled as regeneration resources, and original resources can be saved and replaced, the construction waste dust is beneficial to promoting circulation economic development, reducing pollution and protecting the ecological environment. The environment is not further polluted in the production process.
Description
Technical field
The present invention relates to a kind of building waste ash and preparation method thereof, belong to building material technical field.
Background technology
Along with the speed of urban construction is accelerated, produce a large amount of building wastes.Building waste mainly refers to builds to all kinds of buildings, structures the useless fragment of brick, concrete plate, cement block, waste residue, the mortar the like waste that produce in the processes such as construction, dismounting.The traditional treatment method of these building wastes transports to that countryside is piled up, filling ditch slits, or selects concrete plate and be processed into regeneration aggregate, but a large amount of rubbish turns and can not get recycling.At present, because building waste major part is not reused, become large public hazards in city.
Summary of the invention
For the problems referred to above, the invention provides a kind of building waste ash and preparation method thereof, can effectively utilize a large amount of building wastes, obtained building waste ash can be used in concrete and cement products.
The present invention realizes with following technical scheme: a kind of building waste ash, and it is that raw material adds chemical activator and makes by building waste and gypsum, and the mass percent of described each raw material is:
Building waste 80-95%
Gypsum 7-20%;
The consumption of described chemical activator is the 0.01-0.06% of building waste and gypsum total amount;
Described building waste be removing metal and other foreign material after building refuse brick or concrete plate;
Described chemical activator raw material mass mixture ratio is:
Auxiliary agent raw material mass mixture ratio in chemical activator is:
Specific surface area>=the 500m of above-mentioned building waste ash
2/ ㎏.
The preparation method of above-mentioned building waste ash, concrete steps are as follows:
(1) raw material is taken in proportion;
(2) building waste and gypsum crusher are crushed to Li Du≤30mm;
(3) building waste of step (2) and gypsum are dried to Han Shui Shuai≤2%;
(4) with twin rollers, the building waste after drying and gypsum are extruded further and be crushed to specific surface area>=250m
2/ ㎏;
(5) chemical activator is added;
(6) mix, use grinding machine grinding homogenizing to specific surface area>=500m
2/ ㎏; Be finished product.
Principle is: the specific surface area produced under the power effect that Mechanical Crushing, extruding, grinding are different, granule-morphology, size distribution reach higher unification.
The building waste ash produced by above-mentioned raw materials of the present invention and method is through inspection, and all technical reaches and more than GB/T1596-2005 " flyash in cement and concrete " standard, performance is better than flyash.Flyash can be replaced to be widely used in concrete and cement products.
The invention has the beneficial effects as follows: the composition through science corrects complementary, excites the lateral reactivity of building waste.Large trade waste is done renewable resource recycle by building waste ash, and the alternative Resources of saving, is conducive to promotion recycling economy development and decreasing pollution is preserved the ecological environment.The further pollution to environment is not produced in production process.
Embodiment
The present invention and effect is further illustrated below in conjunction with embodiment
Embodiment 1:
Take raw material building refuse brick 93kg, gypsum 7kg by weight ratio, mix exciting agent 20mg outward.By building refuse brick 93kg and gypsum 7kg first by crusher in crushing to the particle of the equal Li Jing≤30mm of Ping, dry to water ratio and be less than 2%, then mix chemical activator with after twin rollers grinding 50min, continue after grinding 25min to specific surface area>=500m
2/ ㎏, product.
Embodiment 2:
Take raw material building waste concrete plate 88kg, gypsum 12kg by weight ratio, mix exciting agent 50mg outward.By building waste concrete plate 88kg and gypsum 12kg first by crusher in crushing to the particle of the equal Li Jing≤30mm of Ping, dry and be less than 2% to water ratio, powder mixes chemical activator with after twin rollers grinding 45min again, continues after grinding 25min to specific surface area>=500 m
2/ ㎏, product.
The product that above-mentioned 2 embodiments make, performance and technical requirements are better than the technical parameter of the Ι level flyash in GB/T1596-2005 " flyash in cement and concrete " after testing: specific surface area>=465m
2/ ㎏, water content 0.1%, loss on ignition 3.7%, sulphur trioxide 2.98%, free calcium oxide 0.03%, stability 1.0 ㎜, active 72%.
2 concrete detected results of embodiment are in table 1.
Table 1
Test example 1-4
Flyash and building waste ash are had a competition at concrete match ratio and are matched than test example 4, in table 2,
Material: cement: Shandong first line of a couplet P.O42.5.
Numbering 1,3,5 is the flyash of China Resources power plant.Numbering 2,4,6 is the building waste ash of the application.
Admixture: Xuzhou giant dragon JL-1 poly carboxylic acid.
Claims (3)
1. a building waste ash, is characterized in that, it is that raw material adds chemical activator and makes by building waste and gypsum, and the mass percent of described each raw material is:
Building waste 80-95%
Gypsum 7-20%;
The consumption of described chemical activator is the 0.01-0.06% of building waste and gypsum total amount;
Described building waste be removing metal and other foreign material after building refuse brick or concrete plate;
Described chemical activator raw material mass mixture ratio is:
Auxiliary agent raw material mass mixture ratio in chemical activator is:
2. a kind of building waste ash according to claim 1, is characterized in that, the specific surface area>=500m of described building waste ash
2/ ㎏.
3. a preparation method for a kind of building waste ash described in claim 1 or 2, it is characterized in that, concrete steps are as follows:
(1) raw material is taken in proportion;
(2) building waste and gypsum crusher are crushed to Li Du≤30mm;
(3) building waste of step (2) and gypsum are dried to Han Shui Shuai≤2%;
(4) with twin rollers, the building waste after drying and gypsum are extruded further and be crushed to specific surface area>=250m
2/ ㎏;
(5) chemical activator is added;
(6) mix, use grinding machine grinding homogenizing to specific surface area>=500m
2/ ㎏; Be finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410829404.1A CN104556939B (en) | 2014-12-26 | 2014-12-26 | A kind of building waste ash and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410829404.1A CN104556939B (en) | 2014-12-26 | 2014-12-26 | A kind of building waste ash and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104556939A true CN104556939A (en) | 2015-04-29 |
| CN104556939B CN104556939B (en) | 2016-08-24 |
Family
ID=53074128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410829404.1A Active CN104556939B (en) | 2014-12-26 | 2014-12-26 | A kind of building waste ash and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104556939B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1087718C (en) * | 1997-12-02 | 2002-07-17 | 王品伦 | Activating agent for mortar |
| CN102690069A (en) * | 2011-03-21 | 2012-09-26 | 王晓薇 | Regeneration method taking construction wastes as cement raw materials |
| CN103086618A (en) * | 2013-01-22 | 2013-05-08 | 浙江大学宁波理工学院 | Construction waste micro-powder solidifying agent for solidifying soil mass |
-
2014
- 2014-12-26 CN CN201410829404.1A patent/CN104556939B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1087718C (en) * | 1997-12-02 | 2002-07-17 | 王品伦 | Activating agent for mortar |
| CN102690069A (en) * | 2011-03-21 | 2012-09-26 | 王晓薇 | Regeneration method taking construction wastes as cement raw materials |
| CN103086618A (en) * | 2013-01-22 | 2013-05-08 | 浙江大学宁波理工学院 | Construction waste micro-powder solidifying agent for solidifying soil mass |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104556939B (en) | 2016-08-24 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20181206 Address after: 221000 Husai Town Industrial Park, Peixian County, Xuzhou City, Jiangsu Province Patentee after: Peixian Dimension Green Energy Technology Co.,Ltd. Address before: Room 706, Building 4, Yihe Apartment, Coal Construction Road, Duanzhuang Street, Quanshan District, Xuzhou City, Jiangsu Province, 221000 Co-patentee before: Wang Pinlun Patentee before: XUZHOU YUXIN ENVIRONMENTAL PROTECTION BUILDING MATERIALS Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: 221000 Industrial Park, Huzhai Town, Pei County, Xuzhou City, Jiangsu Province Patentee after: Jiangsu DiMeng Green Energy Technology Co.,Ltd. Address before: 221000 Husai Town Industrial Park, Peixian County, Xuzhou City, Jiangsu Province Patentee before: Peixian Dimension Green Energy Technology Co.,Ltd. |
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| CP03 | Change of name, title or address |