CN1321933C - Powdered coal ash brick - Google Patents
Powdered coal ash brick Download PDFInfo
- Publication number
- CN1321933C CN1321933C CNB021036217A CN02103621A CN1321933C CN 1321933 C CN1321933 C CN 1321933C CN B021036217 A CNB021036217 A CN B021036217A CN 02103621 A CN02103621 A CN 02103621A CN 1321933 C CN1321933 C CN 1321933C
- Authority
- CN
- China
- Prior art keywords
- flyash
- brick
- water
- liquid
- additive
- 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.)
- Expired - Fee Related
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
- C04B28/26—Silicates of the alkali metals
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- 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 present invention relates to a fly ash four-free brick which belongs to the field of building material. The present invention is composed of fly ash, hard material and additives. The present invention is produced according to following method steps that firstly, 80 to 90% of coal ash and 10 to 20% hard material are mixed; then, No. 1 liquid, namely the aqueous solution of sodium silicate is added, No. 2 liquid, namely the aqueous solution of sodium silicate is added, and the ratio of No. 2 liquid to No. 1 liquid is 1.5 to1; finally, the mixture is pressed for shaping bricks by a brick making machine, and the bricks leave the factory after being cured. The brick does not need clay, or sintering, or steaming for curing, or soaking, time is saved, and the brick yield is greatly improved. The present invention has an anti-aging function and a corrosion resistant function, the strength of the present invention can reach the grade of the best quality brick of national rower JC239 to 2001Mu15, and the weight is lower than that of a clay brick; the present invention has the advantages of land source protection, energy saving, few environmental pollution, natural curing and little weather effect, and the present invention can also be produced at a region with more rain.
Description
Affiliated field:
The present invention relates to a kind of method for preparing flyash brick, belong to building materials field.
Background technology:
The present invention is to be the improvement that 89109395 high-strength fly-ash three are exempted from brick to the patent No., three to exempt from be free sticky soil, unburned knot, non-evaporating supporting, this brick must mix flyash back repressed brick base with mechanically resistant material such as lime, cement or carbide slag, after drying under the natural condition, also need to gain in strength in 24 hours with 3% sodium silicate aqueous solution immersion.Reach 24 hours because turnout is big, tonnage is many, soak operation, brick directly influences the output of brick through going into pond, tapping, immersion, discharge opeing, going out pond etc. and take a lot of man-hours.
Summary of the invention:
The objective of the invention is to overcome above-mentioned weak point of the prior art, and provide a kind of and need not soak, invest little, take up an area of less, the method for preparing flyash brick that output is high.
The object of the present invention is achieved like this: material component comprises flyash, cement, lime, carbide slag and additive, and it prepares by following step:
A, get material by the arbitrary proportioning in the following weight percent proportioning group, mixture of raw materials is stirred, the proportioning group is as follows:
Flyash: cement=90: 10;
Flyash: cement=80: 20;
Flyash: lime=90: 10;
Flyash: lime=80: 20;
Flyash: carbide slag=75: 25;
Flyash: carbide slag=80: 20;
B, add 4.8～10.8 parts of additives by 100 parts of above-mentioned mixtures and mix, the material component of this additive and unit weight degree are water glass 1～20%, and all the other are water;
C, add 3.2～7.2 parts of additives by 100 parts of above-mentioned mixtures and mix, the material component of this additive and unit weight degree are sulfuric acid 1～15%, and all the other are water;
D, send pressing device compacting, piling;
E, be normal temperature more than 5 ℃ in temperature, through twice maintenance of water or natural curing, after the maintenance flyash brick.
It can also prepare by following step:
A, get material by the arbitrary proportioning in the following weight percent proportioning group, mixture of raw materials is stirred, the proportioning group is as follows:
Flyash: cement=90: 10;
Flyash: cement=80: 20;
Flyash: lime=90: 10;
Flyash: lime=80: 20;
Flyash: carbide slag=75: 25;
Flyash: carbide slag=80: 20;
B, with material component and unit weight degree be water glass 1～20%, all the other are for the additive of water and material component and unit weight degree are sulfuric acid 1～15%, all the other are the additive of water, it is afterwards standby to generate molten slurry in 1.5: 1 ratio uniform mixing reactions;
C, with molten slurry and mixture by 8～18: 100 weight ratio adds mixture with above-mentioned molten slurry and stirs;
D, send pressing device compacting, piling;
E, be normal temperature more than 5 ℃ in temperature, through twice maintenance of water or natural curing, after the maintenance flyash brick.
The present invention compared with prior art has following advantage:
1, because this procedure is soaked in cancellation, to exempt from brick than three and save man-hour more than 50%, the cycle of dispatching from the factory shortens three times, improves the output of brick greatly.
2, quality, intensity are higher than three and exempt from brick, and anti-aging, corrosion-resistant, its intensity is thought and acted in one and the same way, and is evenly whole, and three exempt from brick to have only the about 3-5 millimeter in the surface of immersion be calcite.
3, protection land resources is saved the energy, reduces environmental pollution.
4, high volume, porous, low unit weight, this brick main raw material is an industrial residue flyash, and content is up to 85%, and its intensity reaches national rower JC239--2001Mu
15The grade of high-quality brick weighs less than clay brick.
5, less investment, it is fast to found the factory, the income height, natural curing is subjected to weather effect little, and particularly the more area of rainwater also can produce.
Embodiment:
The present invention implements by following mode:
Embodiment 1, it is made up of flyash, mechanically resistant material and additive, and mechanically resistant material is cement, lime or carbide slag.
Step production as follows:
1, the mixture of earlier flyash and mechanically resistant material being formed in proportion stirs;
2, add No. 1 liquid of additive and mix, promptly add No. 1 liquid of 4.8--10.8 part in addition by 100 parts of mixtures, No. 1 liquid each component and unit weight degree are water glass 1-20%, all the other are water;
No. 1 the liquid specific embodiment sees the following form:
| Composition | Weight percent content (%) | ||||||||
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | Example 7 | Example 8 | Example 9 | |
| Water glass | ?1 | ?10 | ?20 | ?3 | ?5 | ?7 | ?12 | ?15 | ?18 |
| Water | ?99 | ?90 | ?80 | ?97 | ?95 | ?93 | ?88 | ?85 | ?82. |
3, add No. 2 liquid of additive again and mix, promptly add No. 2 liquid of 3.2--7.2 part in addition by 100 parts of mixtures, wherein No. 2 liquid each components and unit weight degree are sulfuric acid 1-15%, all the other are water;
No. 2 the liquid specific embodiment sees the following form:
| Composition | Weight percent content (%) | ||||||||
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | Example 7 | Example 8 | Example 9 | |
| Sulfuric acid | ?1 | ?3 | ?7.5 | ?10 | ?5 | ?9 | ?12 | ?15 | ?13 |
| Water | ?99 | ?97 | ?92.5 | ?90 | ?95 | ?91 | ?88 | ?85 | ?87 |
4, send pressing device compacting, piling;
5, after twice maintenance of water or natural curing, can dispatch from the factory.
Embodiment 2, it can also be by following step production:
1, the mixture of earlier flyash and mechanically resistant material being formed in proportion stirs;
2, No. 1 liquid of additive and No. 2 liquid is standby in 1.5: 1 the molten slurry of ratio uniform mixing reaction generation back;
3, will stir 5 minutes in the molten slurry adding mixture, the ratio of molten slurry and mixture is 8-18: 100, can decide according to the flyash water content, and moisture many more, ratio is more little;
4, send pressing device compacting, piling;
5, after twice maintenance of water or natural curing, can dispatch from the factory.
Embodiment 3,
1, elder generation stirs the mixture of 90% flyash and 10% cement composition;
2, add No. 1 liquid of additive and mix, add 7.5 parts of No. 1 liquid by 100 parts of mixtures, No. 1 liquid each component and unit weight degree are water glass 20%, water 80%;
3, add No. 2 liquid of additive again and mix, add 5 parts of No. 2 liquid by 100 parts of mixtures, No. 2 liquid each components and unit weight degree are sulfuric acid 10%, water 90%;
4, send pressing device compacting, piling;
5, after twice maintenance of water, can dispatch from the factory.
Intensity is MU10, can make furring tile.
Embodiment 4,
1, elder generation stirs the mixture of 80% flyash and 20% cement composition;
2, No. 1 liquid of additive and No. 2 liquid is standby in 1.5: 1 the molten slurry of ratio uniform mixing reaction generation back;
3, will be molten slurry add in the mixture and stirred 5 minutes, molten slurry and mixture were in 14: 100 ratio;
4, send pressing device compacting, piling;
5, after twice maintenance of water, can dispatch from the factory.
Intensity is MU15, can make heavy-load bearing brick.
Embodiment 5,
1, elder generation stirs the mixture of 90% flyash and 10% lime composition;
2, add No. 1 liquid of additive and mix, add 6 parts of No. 1 liquid by 100 parts of mixtures, No. 1 liquid each component and unit weight degree are water glass 20%, water 80%;
3, add No. 2 liquid of additive again and mix, add 4 parts of No. 2 liquid by 100 parts of mixtures, No. 2 liquid each components and unit weight degree are sulfuric acid 10%, water 90%;
4, send pressing device compacting, piling;
5, after twice maintenance of water, can dispatch from the factory.
Intensity is MU10, can make furring tile.
Embodiment 6,
1, elder generation stirs the mixture of 80% flyash and 20% lime composition;
2, No. 1 liquid of additive and No. 2 liquid is standby in 1.5: 1 the molten slurry of ratio uniform mixing reaction generation back;
3, will be molten slurry add in the mixture and stirred 5 minutes, molten slurry and mixture were in 12: 100 ratio;
4, send pressing device compacting, piling;
5, after twice maintenance of water, can dispatch from the factory.
Intensity is MU15, can make heavy-load bearing brick.
Embodiment 7,
1, elder generation stirs the mixture of 75% flyash and 25% carbide slag composition;
2, add No. 1 liquid of additive and mix, add 9 parts of No. 1 liquid by 100 parts of mixtures, No. 1 liquid each component and unit weight degree are water glass 20%, water 80%;
3, add No. 2 liquid of additive again and mix, add 6 parts of No. 2 liquid by 100 parts of mixtures, No. 2 liquid each components and unit weight degree are sulfuric acid 10%, water 90%;
4, send pressing device compacting, piling;
5, be normal temperature more than 5 ℃ in temperature, after twice maintenance of water, can dispatch from the factory.
Intensity is MU10
Embodiment 8,
1, elder generation stirs the mixture of 80% flyash and 20% carbide slag composition:
2, No. 1 liquid of additive and No. 2 liquid is standby in 1.5: 1 the molten slurry of ratio uniform mixing reaction generation back;
3, will be molten slurry add in the mixture and stirred 5 minutes, molten slurry and mixture were in 15: 100 ratio;
4, send pressing device compacting, piling;
5, after twice maintenance of water, can dispatch from the factory.
Intensity is MU10
The physical property of the molten slurry that generates as No. 1 liquid of external additive, No. 2 liquid and No. 1 liquid and No. 2 liquid reactions and chemical are to the effect of high-strength fly-ash brick:
Flyash is the globular glass body, with water glass water-sol parent subordinate list face, promptly on the flyash spheroid, has the molten slurry of silicon sol behind chance and the aqueous sulfuric acid, make mixture be rich in plasticity-, pressing unfired brick plasticity-is strong, and density is big, do not rebound, No. 1 liquid and No. 2 liquefaction are closed after drying and are separated out water, and crystal becomes fine silica gel, and the effect of additional crystallization increases by high-strength four intensity of exempting from brick again;
Its object was water insoluble after the characteristics of this additive maximum made the brick shaping and drying, and anti-carbonization is not shunk, so make dry shrinkage, carbonization test all can reach CJ239-2001 rower MU10, MU15 standard;
No. 1 liquid and No. 2 liquid proportionals are grasped behind reaction chemical combination becomes neutrality, can omit meta-alkalescence, makes high-strength four to exempt from brick intensity, anti-aging effect are arranged.
If this flyash brick without water or natural condition maintenance, also can with the kiln sintering.
The also alternative flyash of stone flour, alkaline residue, coal gangue is suitable for the present invention.
Claims (2)
1, a kind of method for preparing flyash brick, material component comprises flyash, cement, lime, carbide slag and additive, it is characterized in that it prepares by following step:
A, get material by the arbitrary proportioning in the following weight percent proportioning group, mixture of raw materials is stirred, the proportioning group is as follows:
Flyash: cement=90: 10;
Flyash: cement=80: 20;
Flyash: lime=90: 10;
Flyash: lime=80: 20;
Flyash: carbide slag=75: 25;
Flyash: carbide slag=80: 20;
B, add 4.8～10.8 parts of additives by 100 parts of above-mentioned mixtures and mix, the material component of this additive and unit weight degree are water glass 1～20%, and all the other are water;
C, add 3.2～7.2 parts of additives by 100 parts of above-mentioned mixtures and mix, the material component of this additive and unit weight degree are sulfuric acid 1～15%, and all the other are water;
D, send pressing device compacting, piling;
E, be normal temperature more than 5 ℃ in temperature, through twice maintenance of water or natural curing, after the maintenance flyash brick.
2, a kind of method for preparing flyash brick, material component comprises flyash, cement, lime, carbide slag and additive, it is characterized in that it can also prepare by following step:
A, get material by the arbitrary proportioning in the following weight percent proportioning group, mixture of raw materials is stirred, the proportioning group is as follows:
Flyash: cement=90: 10;
Flyash: cement=80: 20;
Flyash: lime=90: 10;
Flyash: lime=80: 20;
Flyash: carbide slag=75: 25;
Flyash: carbide slag=80: 20;
B, with material component and unit weight degree be water glass 1～20%, all the other are for the additive of water and material component and unit weight degree are sulfuric acid 1～15%, all the other are the additive of water, it is afterwards standby to generate molten slurry in 1.5: 1 ratio uniform mixing reactions;
C, with molten slurry and mixture by 8～18: 100 weight ratio adds mixture with above-mentioned molten slurry and stirs;
D, send pressing device compacting, piling;
E, be normal temperature more than 5 ℃ in temperature, through twice maintenance of water or natural curing, after the maintenance flyash brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021036217A CN1321933C (en) | 2002-01-31 | 2002-01-31 | Powdered coal ash brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021036217A CN1321933C (en) | 2002-01-31 | 2002-01-31 | Powdered coal ash brick |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1369452A CN1369452A (en) | 2002-09-18 |
| CN1321933C true CN1321933C (en) | 2007-06-20 |
Family
ID=4739840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021036217A Expired - Fee Related CN1321933C (en) | 2002-01-31 | 2002-01-31 | Powdered coal ash brick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1321933C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101747016B (en) * | 2008-12-16 | 2013-07-10 | 石河子开发区天富新型建材有限责任公司 | Sintering-free flyash brick |
| CN108059431A (en) * | 2017-12-22 | 2018-05-22 | 中建八局第建设有限公司 | One kind exempts from steam-cured fly ash brick and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043117A (en) * | 1989-12-16 | 1990-06-20 | 湖北省电力试验研究所 | Free of calcining and steam curing flyash brick and preparation method thereof |
| CN1046727A (en) * | 1989-12-17 | 1990-11-07 | 唐山冀电粉煤灰综合利用科研所 | The production method of flyash brick |
| CN1047272A (en) * | 1989-05-19 | 1990-11-28 | 朱连生 | The manufacture method of fly ash composite material |
| CN1089583A (en) * | 1993-06-24 | 1994-07-20 | 方宝清 | The production method of pulverized burned coal ash hydration bricks |
-
2002
- 2002-01-31 CN CNB021036217A patent/CN1321933C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1047272A (en) * | 1989-05-19 | 1990-11-28 | 朱连生 | The manufacture method of fly ash composite material |
| CN1043117A (en) * | 1989-12-16 | 1990-06-20 | 湖北省电力试验研究所 | Free of calcining and steam curing flyash brick and preparation method thereof |
| CN1046727A (en) * | 1989-12-17 | 1990-11-07 | 唐山冀电粉煤灰综合利用科研所 | The production method of flyash brick |
| CN1089583A (en) * | 1993-06-24 | 1994-07-20 | 方宝清 | The production method of pulverized burned coal ash hydration bricks |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1369452A (en) | 2002-09-18 |
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Granted publication date: 20070620 Termination date: 20110131 |