CN102659358B - Baffle brick with ultra low shrinkage and manufacturing method thereof - Google Patents
Baffle brick with ultra low shrinkage and manufacturing method thereof Download PDFInfo
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- CN102659358B CN102659358B CN201210057326.9A CN201210057326A CN102659358B CN 102659358 B CN102659358 B CN 102659358B CN 201210057326 A CN201210057326 A CN 201210057326A CN 102659358 B CN102659358 B CN 102659358B
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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
Abstract
The invention utilizes recycled red bricks from the process of demolishing buildings and saw dust to produce the baffle bricks with ultra low shrinkage and slight expansion property. The characteristics are that: baffle bricks are manufactured utilizing the red bricks, which are construction wastes and waste materials from demolishing of old buildings, and recycled saw dust to replace stone aggregates in traditional concrete baffle bricks; and baffle bricks manufactured by the technology of the invention are ultra low in shrinkage, while the strength and other performances are equal or slightly improved compared with the traditional baffle bricks manufactured by gravel or recycled aggregates.
Description
Technical field
The invention belongs to material of construction coagulation great soil group, relate to a kind of utilize building demolition refuse common brick and reclaim sawdust manufacture have unusual low-shrinkage can partition block and manufacture method thereof.
Technical background
Along with improving constantly of rapid development of economy and people's living standard, a large amount of buildingss all will be removed every day in the each big city of China, and wood working process also produces a large amount of sawdusts.Process demolition of buildings waste material and sawdust and become serious society and environmental problem.And the serious strategy of sustainable development that affects country. therefore, exploitation is reclaimed and is utilized the new technology of waste material of buildings and sawdust to become more and more important.
The buildings major part that China removes is at present all post and panel structure, and in brick joisted buildings, common brick accounts for 80% of material of construction total amount.These common bricks can be used for part through crushing and screenings and replace the natural aggregate in concrete or be used as road basis, and this class salvage material is also called regeneration aggregate.Aggregate of recycled concrete is successfully utilized in the building industry of European and American developed countries, is mainly used on the basis of non-structural concrete and road.The application of Aggregate of recycled concrete in structural concrete is limited in 20%, and the content of common brick is strict with in 5%.Mainly because Aggregate of recycled concrete and regeneration common brick aggregate are lower with natural stone phase specific tenacity, porous and higher water-intake rate, thus cause the more difficult control of concrete mobility.The concrete paving block piece of mechanical pressing belongs to no slump concrete, and flow is less demanding, therefore, utilizes the method manufacture concrete paving block of mechanical pressing and partition block to replace natural gravel with 100% regeneration aggregate.
Sawdust is wood fiber material, and its recycling is mainly in timber industry, to be used for suppressing composite wood board, but also has a large amount of wastes that is dumped.Water-swelling is very important performance of wood fiber.
The partition block utilizing on domestic construction market is at present mainly common concrete brick and aerating fly ash building block etc.These products cause contract with dry rate severe overweight (0.06%) in process of production because quality control is bad.Will there is body of wall shrinkage crack in general 3 to 5 years in the buildings of China at present, and major cause is that materials for wall contract with dry rate exceeds standard.The contract with dry rate of the partition block that its contract with dry rate of partition block that Aggregate of recycled concrete and regeneration common brick aggregate are manufactured is manufactured than natural gravel is higher, and this has limited the consumption of regeneration aggregate in partition block on the one hand, makes on the other hand wall on it be restricted.Therefore the new technology that, exploitation manufacture has a partition block of ultralow shrinkage has realistic meaning to improving security and the weather resistance of buildings.
Summary of the invention
The object of the present invention is to provide a kind of utilize waste material of buildings-common brick and reclaim sawdust manufacture concrete partition brick and the manufacture method thereof with ultralow shrinkage, owing to having used regeneration common brick aggregate and sawdust, new way is provided on the one hand the recycling of building demolition refuse-common brick and sawdust, save on the other hand the exploitation of natural gravel, the 3rd partition block mixes after sawdust, because its water-swelling has supplemented the drying shrinkage causing due to aquation and the dehydration of hydraulic cementing materials, the mechanical properties such as its intensity are constant.Therefore, the present invention is the new technology of Sustainable development.
The partition block that utilizes the technology of the present invention to manufacture;
Its starting material amount ranges is:
Cement/aggregate: 1/15～1/9;
Flyash or bottom slag: 0～20% of aggregate consumption;
And regeneration aggregate ratio is:
Regeneration common brick aggregate: 0～100%,
Or Aggregate of recycled concrete: 0～100%
Sawdust consumption: the 0.5-5% of aggregate volume amount
The consumption of water is determined according to actual needs.
Described cement is any cement conventionally adopting in concrete technology, comprises silicate cement, ordinary Portland cement, limestone portland cement, white cement etc.
Described flyash is all kinds of flyash that power plant discharges;
5 millimeters of described bottom slag particle diameter <;
The particle size range of described Aggregate of recycled concrete is 40 millimeters of <;
The particle size range of described regeneration common brick aggregate is 40 millimeters of <;
The particle size range of described sawdust is 3 millimeters of <.
In method of the present invention the water that makes with manufacture portland cement concrete identical, need not specify.
In optimum implementation of the present invention, its starting material amount ranges is:
Cement/aggregate: 1/12～1/10;
Flyash or bottom slag: 15% of aggregate consumption;
And, the ratio of Aggregate of recycled concrete and regeneration common brick aggregate:
Aggregate of recycled concrete: 35%, particle size range is 20--10 millimeter
Regeneration common brick aggregate: 65% particle size range is 10 millimeters of <
Sawdust consumption: the 2-3% of aggregate volume amount
Embodiment
Below, in conjunction with the concrete example of implementing, the present invention is described in further detail.
Embodiment 1:
Can find out from the listed proportioning of table 1 and the concrete partition brick characteristic of producing, due to the increase of common brick aggregate consumption, the intensity of partition block declines to some extent, but more than the intensity of all concrete partition bricks still reaches 15MPa.Reach the requirement of CNS (7MPa) completely. because the contract with dry rate that has mixed sawdust partition block is well below 0.06%.
Proportioning and the test result of table 1 concrete partition brick
Embodiment 2
Proportioning and the test result of table 2 concrete partition brick
Can find out from the characteristic of the listed proportioning of table 2 and the concrete partition brick of manufacturing, because the contract with dry rate of the increase partition block of sawdust consumption reduces, in the time that the incorporation of sawdust exceedes 4%, partition wall turns brick and starts to occur microdilatancy.
Embodiment 3
Proportioning and the test result of table 3 concrete partition brick
Can find out from the characteristic of the listed proportioning of table 3 and the concrete partition brick tested, because the ultimate compression strength of the increase brick of cement consumption increases, and contract with dry rate increases.
Claims (3)
1. a manufacture method with the concrete partition brick of ultralow shrinkage, comprising:
By the cement of following ratio, waste material of buildings regenerative bone material by concrete, common brick regeneration aggregate, flyash or bottom slag, sawdust and water utilize that brick pressing machine is molded makes hollow or solid partition brick by a certain percentage after mixing and stirring;
Its starting material amount ranges is:
Cement/aggregate: 1/15～1/9;
Flyash or bottom slag: 15～20% of aggregate consumption;
And regeneration aggregate ratio is:
Regeneration common brick aggregate: 35～65%,
Aggregate of recycled concrete: 35～65%
Sawdust consumption: the 0.5-3% of aggregate volume amount
The consumption of water is determined according to actual needs;
Described cement is any cement conventionally adopting in concrete technology;
Described flyash is all kinds of flyash that power plant discharges;
5 millimeters of described bottom slag particle diameter <;
The particle size range of described Aggregate of recycled concrete is 40 millimeters of <;
The particle size range of described regeneration common brick aggregate is 40 millimeters of <;
The particle size range of described sawdust is 3 millimeters of <.
2. manufacture method as claimed in claim 1, is characterized by: described regeneration common brick aggregate is to reclaim and the particle diameter of the crushing and screening regeneration common brick aggregate between 10 millimeters of scopes of <.
3. manufacture method as claimed in claim 1, is characterized by: described Aggregate of recycled concrete is through reclaiming the particle diameter of the crushing and screening regeneration aggregate between 20 millimeters of scopes of <.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210057326.9A CN102659358B (en) | 2012-03-06 | 2012-03-06 | Baffle brick with ultra low shrinkage and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210057326.9A CN102659358B (en) | 2012-03-06 | 2012-03-06 | Baffle brick with ultra low shrinkage and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102659358A CN102659358A (en) | 2012-09-12 |
| CN102659358B true CN102659358B (en) | 2014-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210057326.9A Active CN102659358B (en) | 2012-03-06 | 2012-03-06 | Baffle brick with ultra low shrinkage and manufacturing method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104529334B (en) * | 2014-12-20 | 2018-06-05 | 郑州大学 | Discarded fired brick regeneration C35 synthetic fiber concretes and preparation method thereof |
| CN105776999A (en) * | 2016-02-27 | 2016-07-20 | 柳州市够旺贸易有限公司 | Brick for building |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101531029A (en) * | 2009-04-21 | 2009-09-16 | 广州华驭建筑科技有限公司 | Partition brick with high fire resistance and manufacturing method thereof |
| CN101734874A (en) * | 2008-11-20 | 2010-06-16 | 滨州市福山建材有限公司 | Production method to sinter walling materials by carbonizing straws |
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2012
- 2012-03-06 CN CN201210057326.9A patent/CN102659358B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101734874A (en) * | 2008-11-20 | 2010-06-16 | 滨州市福山建材有限公司 | Production method to sinter walling materials by carbonizing straws |
| CN101531029A (en) * | 2009-04-21 | 2009-09-16 | 广州华驭建筑科技有限公司 | Partition brick with high fire resistance and manufacturing method thereof |
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| CN102659358A (en) | 2012-09-12 |
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| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 518055 Guangdong city of Shenzhen province Nanshan District Xili Tanglangshan environmental Park Applicant after: Shenzhen Huawei Environmental Protection Building Material Co., Ltd. Address before: 518055 Guangdong city of Shenzhen province Nanshan District Xili town Tanglangshan environmental Park office building Applicant before: Shenzhen Huawei Environmental Protection Building Material Co., Ltd. |
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| CB03 | Change of inventor or designer information |
Inventor after: Kou Shicong Inventor after: Yang Zhengsong Inventor after: Chen Weiwu Inventor after: Li Wenlong Inventor after: Guan Yu Inventor before: Kou Shicong Inventor before: Yang Zhengsong Inventor before: Zhang Zhaoxiong Inventor before: Pan Zhiqi |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: KOU SHICONG YANG ZHENGSONG ZHANG ZHAOXIONG PAN ZHIQI TO: KOU SHICONG YANG ZHENGSONG CHEN WEIWU LI WENLONG GUAN YU |
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| C14 | Grant of patent or utility model | ||
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