CN104944881A - Method for preparing wall bricks with construction waste - Google Patents
Method for preparing wall bricks with construction waste Download PDFInfo
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- CN104944881A CN104944881A CN201510341575.4A CN201510341575A CN104944881A CN 104944881 A CN104944881 A CN 104944881A CN 201510341575 A CN201510341575 A CN 201510341575A CN 104944881 A CN104944881 A CN 104944881A
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- Prior art keywords
- building waste
- wall brick
- prepares
- described step
- ball milling
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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 a method for preparing wall bricks with construction waste, and belongs to the field of waste recycling. The method comprises four steps such as pretreatment, sieving after ball mill, mixing, and formation, so as to realize the recycling of construction waste. The method can be used for realizing reutilization of construction waste, and is simple in process, and high in construction waste utilizing efficiency; the wall brick prepared according to the method is high in strength, low in density and high in heat insulation property.
Description
Technical field
The present invention relates to a kind of method that building waste prepares wall brick, belong to utilization of waste as resource field.
Background technology
Building operation refuse production is relevant with the level of management of construction manager, the structure formation in house and the many factors such as feature, operating technique, and involves each side such as owner, design, contractor.Generally speaking include the materials such as dregs, pile crown, broken building block, mortar, concrete, timber, wrapping material, steel.Building operation rubbish, primarily of compositions such as brickbat, concrete, mortar, pile crown, wrapping material, accounts for 80% of building operation rubbish total amount.The quantity of urban building waste sharply increases, and current year output has reached 700,000,000 tons, is 5 times of domestic waste.
The annual a large amount of building waste of removing because of old room and building new house and produce of China in recent years, the annual a large amount of natural sandstone consumed because producing commerical ready-mixed concrete simultaneously, so huge building waste quantum of output and the demand of sandstone aggregate, must cause a large amount of dumpings and cut into a mountain for quarrying, net result can cause the havoc of ecotope.Construction refuse resource not only can solve the stacking of a large amount of building waste and take the problem such as arable land, contaminate environment, the negative impact to ecotope caused because cutting into a mountain for quarrying can also be reduced, have good economic benefit, social benefit and environmental benefit, it is very necessary for therefore carrying out recycling to building waste.
Summary of the invention
The object of this invention is to provide a kind of method that building waste prepares wall brick, can realize the recycling of building waste, technique is simple, and the utilization ratio of building waste is high, and the wall brick intensity of preparation is high, density is low, thermal insulation good.
The technical solution adopted in the present invention is:
Building waste prepares a method for wall brick, it is characterized in that: comprise following step:
(1) pre-treatment, puts into crusher and carries out fragmentation by building waste, the building waste powder after fragmentation passes through screening, extracting screen underflow;
(2) ball milling and screening, screen underflow and shale, cement, flyash, gypsum are joined in ball mill according to mass ratio 1:0.1-0.3:0.1-0.5:0.1-0.25:0.05-0.15, powder after ball milling sieves through 50-200 mesh sieve, and screen overflow returns continuation ball milling, extracting screen underflow;
(3) batch mixing, 5-30 minute becomes compound with water glass, water, fine foamer according to mass ratio 1:0.005-0.05:0.1-0.2:0.005-0.05 mixing by the screen underflow of step (2);
(4) shaping, step (3) compound is put into grinding tool, then under pressure is 10-50MPa, suppresses 10-60 minute, then put into maintaining box maintenance, the temperature in maintaining box controls at 20-50 DEG C, and humidity is 80-95%, and curing time is 5-30 days.
Further, when sieving in described step 1, screen cloth is 4-12 order.
Further, ratio of grinding media to material 1:0.2-0.8 during ball milling in described step 2, Ball-milling Time is 1-5 hour.
Further, in described step 3, fine foamer is at least one in bicarbonate of ammonia, sodium bicarbonate and tensio-active agent.
Further, lagging material can also be added in described step 3.
Beneficial effect of the present invention is:
1. by the mode mixed with other materials after construction waste crushing is prepared wall brick, namely ensure that the intensity of wall brick, the recycling of building waste can be realized again.
2. add different fillers, as fine foamer and lagging material, improve the thermal insulation of wall brick, reduce the density of wall brick.
Embodiment
Below in conjunction with concrete example; the method being prepared by a kind of building waste described in the present patent application to wall brick is described and illustrates; object is in order to the public better understands technology contents of the present invention; instead of the restriction to described technology contents; under identical or approximate principle, to the improvement that described processing step carries out, comprise reaction conditions, agents useful for same improvement and replace; reach identical object, then all within the present patent application technical scheme required for protection.
embodiment one
Building waste prepares a method for wall brick, comprises following step:
(1) pre-treatment, puts into crusher and carries out fragmentation by building waste, the building waste powder after fragmentation passes through screening, extracting screen underflow;
(2) ball milling and screening, join in ball mill by screen underflow and shale, cement, flyash, gypsum according to mass ratio 1:0.15:0.25:0.2:0.1, the powder after ball milling sieves through 75 mesh sieve, and screen overflow returns continuation ball milling, extracting screen underflow;
(3) batch mixing, mixes 15 minute with water glass, water, fine foamer according to mass ratio 1:0.03:0.15:0.02 by the screen underflow of step (2) and becomes compound;
(4) shaping, step (3) compound is put into grinding tool, and then suppress 25 minutes under pressure is 25MPa, then put into maintaining box maintenance, the temperature in maintaining box controls at 30 DEG C, and humidity is 85%, and curing time is 10 days.
Further, when sieving in described step 1, screen cloth is 10 orders.
Further, ratio of grinding media to material 1:0.5 during ball milling in described step 2, Ball-milling Time is 1 hour.
Further, in described step 3, fine foamer is bicarbonate of ammonia.
Further, urethane lagging material can be added in described step 3.
The wall brick ultimate compression strength finally obtained is 11.5MPa, folding strength 4.0MPa, and density is 1.3g/cm
3, thermal conductivity 0.25W/m.k, ultimate compression strength and folding strength meet construction requirement, the wall brick that density and thermal conductivity are prepared lower than clay.
Embodiment two
Building waste prepares a method for wall brick, comprises following step:
(1) pre-treatment, puts into crusher and carries out fragmentation by building waste, the building waste powder after fragmentation passes through screening, extracting screen underflow;
(2) ball milling and screening, join in ball mill by screen underflow and shale, cement, flyash, gypsum according to mass ratio 1:0.2:0.25:0.2:0.1, the powder after ball milling sieves through 75 mesh sieve, and screen overflow returns continuation ball milling, extracting screen underflow;
(3) batch mixing, mixes 15 minute with water glass, water, fine foamer according to mass ratio 1:0.02:0.15:0.01 by the screen underflow of step (2) and becomes compound;
(4) shaping, step (3) compound is put into grinding tool, and then suppress 25 minutes under pressure is 23MPa, then put into maintaining box maintenance, the temperature in maintaining box controls at 30 DEG C, and humidity is 85%, and curing time is 15 days.
Further, when sieving in described step 1, screen cloth is 12 orders.
Further, ratio of grinding media to material 1:0.4 during ball milling in described step 2, Ball-milling Time is 2 hours.
Further, in described step 3, fine foamer is sodium bicarbonate.
Further, urethane lagging material can be added in described step 3.
The wall brick ultimate compression strength finally obtained is 11.9MPa, folding strength 4.1MPa, and density is 1.35g/cm
3, thermal conductivity 0.24W/m.k, ultimate compression strength and folding strength meet construction requirement, the wall brick that density and thermal conductivity are prepared lower than clay.
Embodiment three
Building waste prepares a method for wall brick, comprises following step:
(1) pre-treatment, puts into crusher and carries out fragmentation by building waste, the building waste powder after fragmentation passes through screening, extracting screen underflow;
(2) ball milling and screening, join in ball mill by screen underflow and shale, cement, flyash, gypsum according to mass ratio 1:0.1:0.25:0.15:0.1, the powder after ball milling sieves through 100 mesh sieve, and screen overflow returns continuation ball milling, extracting screen underflow;
(3) batch mixing, mixes 15 minute with water glass, water, fine foamer according to mass ratio 1:0.02:0.15:0.01 by the screen underflow of step (2) and becomes compound;
(4) shaping, step (3) compound is put into grinding tool, and then suppress 25 minutes under pressure is 23MPa, then put into maintaining box maintenance, the temperature in maintaining box controls at 30 DEG C, and humidity is 85%, and curing time is 15 days.
Further, when sieving in described step 1, screen cloth is 8 orders.
Further, ratio of grinding media to material 1:0.4 during ball milling in described step 2, Ball-milling Time is 2 hours.
Further, in described step 3, fine foamer is sodium bicarbonate.
Further, urethane lagging material can be added in described step 3.
The wall brick ultimate compression strength finally obtained is 12.0MPa, folding strength 4.0MPa, and density is 1.32g/cm
3, thermal conductivity 0.21W/m.k, ultimate compression strength and folding strength meet construction requirement, the wall brick that density and thermal conductivity are prepared lower than clay.
The present invention is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present invention; no matter but any change is done in its shape or structure; every have identical with the application or akin technical scheme, all drops within protection scope of the present invention.
Claims (5)
1. building waste prepares a method for wall brick, it is characterized in that: comprise following step:
(1) pre-treatment, puts into crusher and carries out fragmentation by building waste, the building waste powder after fragmentation passes through screening, extracting screen underflow;
(2) ball milling and screening, screen underflow and shale, cement, flyash, gypsum are joined in ball mill according to mass ratio 1:0.1-0.3:0.1-0.5:0.1-0.25:0.05-0.15, powder after ball milling sieves through 50-200 mesh sieve, and screen overflow returns continuation ball milling, extracting screen underflow;
(3) batch mixing, 5-30 minute becomes compound with water glass, water, fine foamer according to mass ratio 1:0.005-0.05:0.1-0.2:0.005-0.05 mixing by the screen underflow of step (2);
(4) shaping, step (3) compound is put into grinding tool, then under pressure is 10-50MPa, suppresses 10-60 minute, then put into maintaining box maintenance, the temperature in maintaining box controls at 20-50 DEG C, and humidity is 80-95%, and curing time is 5-30 days.
2. a kind of building waste according to claim 1 prepares the method for wall brick, it is characterized in that: in described step (1), during screening, screen cloth is 4-12 order.
3. a kind of building waste according to claim 1 prepares the method for wall brick, it is characterized in that: ratio of grinding media to material 1:0.2-0.8 during ball milling in described step (2), Ball-milling Time is 1-5 hour.
4. a kind of building waste according to claim 1 prepares the method for wall brick, it is characterized in that: in described step (3), fine foamer is at least one in bicarbonate of ammonia, sodium bicarbonate and tensio-active agent.
5. a kind of building waste according to claim 1 prepares the method for wall brick, it is characterized in that: described step can also add lagging material in (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510341575.4A CN104944881A (en) | 2015-06-19 | 2015-06-19 | Method for preparing wall bricks with construction waste |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510341575.4A CN104944881A (en) | 2015-06-19 | 2015-06-19 | Method for preparing wall bricks with construction waste |
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| CN104944881A true CN104944881A (en) | 2015-09-30 |
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| CN201510341575.4A Pending CN104944881A (en) | 2015-06-19 | 2015-06-19 | Method for preparing wall bricks with construction waste |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106348726A (en) * | 2016-08-23 | 2017-01-25 | 柳州市国正机电物资有限责任公司 | Manufacturing method of brick for buildings |
| CN107382276A (en) * | 2017-08-14 | 2017-11-24 | 徐州市恒基伟业建材发展有限公司 | A kind of high intensity hollow brick and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336582A (en) * | 2010-07-23 | 2012-02-01 | 董涛 | Production method for novel environment-friendly wall material |
| CN104130005A (en) * | 2014-07-22 | 2014-11-05 | 广西大学 | Recycled aerated concrete block and making method thereof |
| CN104591608A (en) * | 2013-10-30 | 2015-05-06 | 徐小芹 | Method for regenerating brick tile from building garbage |
| CN104609879A (en) * | 2014-12-18 | 2015-05-13 | 齐齐哈尔越峰科技有限公司 | Recycled aggregate-containing porous non-fired product preparation process |
-
2015
- 2015-06-19 CN CN201510341575.4A patent/CN104944881A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102336582A (en) * | 2010-07-23 | 2012-02-01 | 董涛 | Production method for novel environment-friendly wall material |
| CN104591608A (en) * | 2013-10-30 | 2015-05-06 | 徐小芹 | Method for regenerating brick tile from building garbage |
| CN104130005A (en) * | 2014-07-22 | 2014-11-05 | 广西大学 | Recycled aerated concrete block and making method thereof |
| CN104609879A (en) * | 2014-12-18 | 2015-05-13 | 齐齐哈尔越峰科技有限公司 | Recycled aggregate-containing porous non-fired product preparation process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106348726A (en) * | 2016-08-23 | 2017-01-25 | 柳州市国正机电物资有限责任公司 | Manufacturing method of brick for buildings |
| CN107382276A (en) * | 2017-08-14 | 2017-11-24 | 徐州市恒基伟业建材发展有限公司 | A kind of high intensity hollow brick and preparation method thereof |
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Application publication date: 20150930 |
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