CN1287981A - Fly ash baking-free steaming-free bearing brick - Google Patents
Fly ash baking-free steaming-free bearing brick Download PDFInfo
- Publication number
- CN1287981A CN1287981A CN00129150A CN00129150A CN1287981A CN 1287981 A CN1287981 A CN 1287981A CN 00129150 A CN00129150 A CN 00129150A CN 00129150 A CN00129150 A CN 00129150A CN 1287981 A CN1287981 A CN 1287981A
- Authority
- CN
- China
- Prior art keywords
- fly ash
- powder
- free
- brick
- calcined gypsum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011449 brick Substances 0.000 title claims abstract description 53
- 239000010881 fly ash Substances 0.000 title claims abstract description 31
- 239000000843 powder Substances 0.000 claims abstract description 36
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 16
- 239000010440 gypsum Substances 0.000 claims abstract description 16
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 12
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 12
- 239000004571 lime Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004568 cement Substances 0.000 claims abstract description 10
- 239000000654 additive Substances 0.000 claims abstract description 9
- 230000000996 additive effect Effects 0.000 claims abstract description 9
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 5
- 239000012744 reinforcing agent Substances 0.000 claims description 5
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 4
- 238000001354 calcination Methods 0.000 claims description 4
- 239000011780 sodium chloride Substances 0.000 claims description 4
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 4
- 235000011152 sodium sulphate Nutrition 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000003756 stirring Methods 0.000 description 8
- 239000000203 mixture Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 239000004927 clay Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052918 calcium silicate Inorganic materials 0.000 description 2
- 239000000378 calcium silicate Substances 0.000 description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 239000011464 hollow brick Substances 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000011469 building brick Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- OSMSIOKMMFKNIL-UHFFFAOYSA-N calcium;silicon Chemical compound [Ca]=[Si] OSMSIOKMMFKNIL-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The fly ash non-fired non-steamed load-bearing brick is made up by using (by wt%) 50-70% of fly ash, 10-25% of lime powder, 5-15% of calcined gypsum powder and 10-30% of cement clinker powder, and adding 0.5-1.5% of additive and 14-20% of water, and adding the above-mentioned materials into the brick according to the proportion that the total content of fly ash, lime powder, calcined gypsum powder and cement clinker powder is 100%. The load-bearing brick has the advantages of high compressive strength, low water absorption, good freeze-thaw resistance, no collapse, no crack, no frost phenomenon and higher later compressive strength, and provides a novel wall material which is simple and convenient to produce and convenient to use for the field of buildings.
Description
The invention relates to a building load-bearing brick.
At present, a large amount of solid clay bricks are still used in the construction industry of China, and a large amount of land resources are wasted when the bricks are produced, so that serious consequences are brought to the development of agricultural production and national economy.
The fly ash used in China for producing building bricks has been used for years, but most of the bricks still have many problems, such as poor quality, low strength, easy cracking, poor freezing and thawing property and the like, and can not meet the requirements of building material development.
The invention aims to overcome the defects of the prior art and provide the fly ash baking-free steaming-free bearing brick which has the advantages of high compressive strength, low water absorption, good freeze-thaw resistance, no cracking and simple production.
The purpose of the invention is realized by the following technical scheme:
the fly ash baking-free steaming-free bearing brick comprises fly ash, lime and water, and the technical scheme is that the fly ash baking-free steaming-free bearing brick comprises the following components in percentage by weight: 50-75% of fly ash, 10-25% of lime powder, 5-15% of calcined gypsum powder and 10-30% of cement clinker powder, wherein 0.5-1.5% of additive and 14-20% of water are added according to the total 100% of fly ash, lime powder, calcined gypsum powder and cement clinker powder.
In the technical scheme, the calcined gypsum powder is prepared by calcining at the temperature of not more than 750 ℃. The additive is a composite reinforcing agent formed by mixing sodium chloride and sodium sulfate in equal amount.
The fly ash baking-free steaming-free brick is manufactured by accurately metering and proportioning all raw materials for manufacturing the fly ash baking-free steaming-free brick, conveying the raw materials into a pre-homogenizing stirrer for stirring, fully and uniformly stirring the raw materials, conveying the mixture to a double-shaft stirrer for secondary stirring, adding water while stirring, conveying the mixture to a brick extruding machine for extrusion molding, wherein the brick extruding machine can be an original ZK series common brick making machine or a novel JZK series brick making machine, and finally cutting the brick into a brick blank with a required size. For example, two kinds of bricks can be produced, one is a solid brick having an outer dimension of 240X 115X 50(mm), and the other is a hollow brick having an outer dimension of 240X 115X 90(mm), and the void ratio is 30%. And (4) stacking the bricks, naturally curing, and leaving the factory after time.
The main physical and chemical properties of the baking-free steaming-free load-bearing brick, such as the compressive strength of 10-15MPa, the water absorption of 9.1-10.2 percent and the volume weight of (1.2-1.7) multiplied by 10-3Kg/cm3The thermal conductivity coefficient is 0.4368-0.5082 w/(m.k), and it has the features of complete freeze-thaw resistance, no collapse, no crack, no blooming, etc. Compared with the prior products of the same type, the invention does not need roasting or pressure steaming, thus avoiding burningThe steam and the pressure steam equipment required by kiln construction and steam pressure are adopted, so that the investment of fixed assets is greatly reduced, (generally, the investment of each brickyard in the aspect is at least one million yuan), and only one forming machine is needed, and the materials are mixed and formed. The invention uses the calcined gypsum powder (light burning) and the composite reinforcing agent, and after the green brick is formed and cut, the green brick is quickly condensed and hardened (about 2 hours), thereby being convenient for carrying and stacking the green brick. Compared with the prior products of the same type, the flyash brick has regular appearance, does not collapse or crack when placed in a natural environment for any time, and has the characteristic of convenient use when the clay brick is knocked, and when half bricks are needed, the flyash brick is conveniently broken by a bricklayer and has a neat section. Compared with the prior products of the same type, the fly ash brick of the invention has the advantages that the later strength can be continuously increased, particularly the compressive strength after six months is 1 to 2 times higher than that of the brick leaving the factory, and the reduction of the natural weathering strength of the clay brick is overcomeThe service life is greatly prolonged.
The invention will be further described in detail with reference to the following examples:
standard bricks were manufactured as required for hollow bricks having an external dimension of 240X 115X 90(mm) and a void degree of 30% of approximately 2980 g per brick.
1. The formula is as follows: 1300 g (50 percent) of fly ash, 389 g (15 percent) of lime powder, 130 g (5 percent) of calcined gypsum powder and 777 g (30 percent) of cement clinker powder, and 25 g (0.9 percent) of additive and 465 g (17 percent) of clean fresh water are added according to the total 100 percent of the fly ash, the lime powder, the calcined gypsum powder and the cement clinker powder. The calcined gypsum powder is prepared by calcining at 700 ℃. The 25 g additive is a composite reinforcing agent mixed by 12.5 g of sodium chloride and 12.5 g of sodium sulfate.
2. The formula is as follows: 1600 grams (60 percent) of fly ash, 400 grams (15 percent) of lime powder, 133 grams (5 percent) of calcined gypsum powder, 533 grams (20 percent) of cement clinker powder, and 26 grams (1.0 percent) of additive and 399 grams (15 percent) of clean fresh water which are calculated by taking the sum of the fly ash, the lime powder, the calcined gypsum powder and the cement clinker powder as 100 percent. The calcined gypsum powder is prepared by calcining at 720 ℃. The 26 g additive is a composite reinforcing agent mixed by 13 g sodium chloride and 13 g sodium sulfate.
The fly ash baking-free steaming-free brick is manufactured by accurately metering and proportioning all raw materials for manufacturing the fly ash baking-free steaming-free brick, conveying the raw materials into a pre-homogenizing stirrer for stirring, fully and uniformly stirring, conveying the mixture to a double-shaft stirrer for secondary stirring, adding water while stirring, conveying the mixture to a brick extruding machine for extrusion molding, cutting the brick into bricks with required sizes, namely, bricks with the external shapes of 240 multiplied by 115 multiplied by 90(mm), stacking the bricks, placing the bricks, and naturally curing the bricks to leave the factory.
The flyash brick of the present invention is mixed with water to form and is subjected to complex hydration hardening reaction, wherein the hydration reaction has the following representative formula:
①
③
④
meanwhile, the brick material has the property of 'three-clay', can be continuously hydrated for a long time and generates a strength mineral, and the representative formula is as follows:
At present, each batch of bricks are randomly sampled, and the product performance detection data range is as follows:
(1) the appearance is beautiful and flat, the dimension error is not more than 0.5mm, and the color is gray;
(2) the compressive strength is 10-15 MPa;
(3) the water absorption rate is 9.1-10.2%;
(4) the volumeweight is (1.2-1.7) x 10-3Kg/cm3；
(5) The thermal conductivity coefficient is 0.4368-0.5082W/(m multiplied by k);
(6) the composition has the characteristics of complete freeze thawing resistance, no collapse, no crack, no blooming and the like.
Claims (3)
1. The fly ash baking-free steaming-free bearing brick comprises fly ash, lime and water, and is characterized in that the fly ash baking-free steaming-free bearing brick comprises the following components in percentage by weight: 50-75% of fly ash, 10-25% of lime powder, 5-15% of calcined gypsum powder and 10-30% of cement clinker powder, wherein 0.5-1.5% of additive and 14-20% of water are added according to the total 100% of fly ash, lime powder, calcined gypsum powder and cement clinker powder.
2. The fly ash non-fired and non-steamed load-bearing brick as claimed in claim 1, wherein said calcined gypsum powder is calcined gypsum powder obtained by calcining at a temperature not exceeding 750 ℃.
3. The fly ash baking-free steaming-free load-bearing brick as claimed in claim 1, wherein the additive is a composite reinforcing agent prepared by mixing sodium chloride and sodium sulfate in equal amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00129150A CN1287981A (en) | 2000-10-09 | 2000-10-09 | Fly ash baking-free steaming-free bearing brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00129150A CN1287981A (en) | 2000-10-09 | 2000-10-09 | Fly ash baking-free steaming-free bearing brick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1287981A true CN1287981A (en) | 2001-03-21 |
Family
ID=4593329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00129150A Pending CN1287981A (en) | 2000-10-09 | 2000-10-09 | Fly ash baking-free steaming-free bearing brick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1287981A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100410202C (en) * | 2006-11-07 | 2008-08-13 | 河北越洋新型保温建材有限公司 | Steamed pressurized ash coal 300 volume density flame-endurable heat-insulating air-added concrete building block and its production method |
| CN101948286A (en) * | 2010-10-13 | 2011-01-19 | 广东绿由环保科技股份有限公司 | Aerated concrete building block produced by using ceramic waste and manufacturing method thereof |
| CN101624279B (en) * | 2008-07-10 | 2012-12-26 | 北京建筑材料科学研究总院有限公司 | Treating method for inhibiting desulfurization gypsum building block from scumming |
| CN104556924A (en) * | 2014-10-17 | 2015-04-29 | 刘林 | Hollow fly ash brick |
| CN106316270A (en) * | 2016-08-28 | 2017-01-11 | 北海金匠水泥制品有限责任公司 | Compression resistance cement brick |
| CN110304890A (en) * | 2019-05-28 | 2019-10-08 | 山东辉石能源工程有限公司 | A kind of flyash double exempt from the building materials such as brick and preparation method thereof |
-
2000
- 2000-10-09 CN CN00129150A patent/CN1287981A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100410202C (en) * | 2006-11-07 | 2008-08-13 | 河北越洋新型保温建材有限公司 | Steamed pressurized ash coal 300 volume density flame-endurable heat-insulating air-added concrete building block and its production method |
| CN101624279B (en) * | 2008-07-10 | 2012-12-26 | 北京建筑材料科学研究总院有限公司 | Treating method for inhibiting desulfurization gypsum building block from scumming |
| CN101948286A (en) * | 2010-10-13 | 2011-01-19 | 广东绿由环保科技股份有限公司 | Aerated concrete building block produced by using ceramic waste and manufacturing method thereof |
| CN104556924A (en) * | 2014-10-17 | 2015-04-29 | 刘林 | Hollow fly ash brick |
| CN106316270A (en) * | 2016-08-28 | 2017-01-11 | 北海金匠水泥制品有限责任公司 | Compression resistance cement brick |
| CN110304890A (en) * | 2019-05-28 | 2019-10-08 | 山东辉石能源工程有限公司 | A kind of flyash double exempt from the building materials such as brick and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |