CN1275894C - Fly ash base grouting material - Google Patents
Fly ash base grouting material Download PDFInfo
- Publication number
- CN1275894C CN1275894C CNB2005100401949A CN200510040194A CN1275894C CN 1275894 C CN1275894 C CN 1275894C CN B2005100401949 A CNB2005100401949 A CN B2005100401949A CN 200510040194 A CN200510040194 A CN 200510040194A CN 1275894 C CN1275894 C CN 1275894C
- Authority
- CN
- China
- Prior art keywords
- fly ash
- grouting material
- cement
- flyash
- base grouting
- 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
Links
- 239000010881 fly ash Substances 0.000 title claims abstract description 45
- 239000000463 material Substances 0.000 title claims abstract description 25
- 239000000654 additive Substances 0.000 claims abstract description 19
- 230000000996 additive effect Effects 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 16
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 15
- 239000004568 cement Substances 0.000 claims abstract description 12
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 8
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 8
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 8
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 8
- 150000001875 compounds Chemical class 0.000 claims description 18
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 12
- 239000011575 calcium Substances 0.000 claims description 12
- 229910052791 calcium Inorganic materials 0.000 claims description 12
- 239000003469 silicate cement Substances 0.000 claims description 10
- 235000017550 sodium carbonate Nutrition 0.000 claims description 7
- 150000001669 calcium Chemical class 0.000 claims description 2
- DGVVJWXRCWCCOD-UHFFFAOYSA-N naphthalene;hydrate Chemical group O.C1=CC=CC2=CC=CC=C21 DGVVJWXRCWCCOD-UHFFFAOYSA-N 0.000 claims description 2
- 230000003009 desulfurizing effect Effects 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 abstract 3
- 239000012530 fluid Substances 0.000 abstract 2
- 239000011440 grout Substances 0.000 abstract 2
- 239000000440 bentonite Substances 0.000 abstract 1
- 229910000278 bentonite Inorganic materials 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- 239000002002 slurry Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000003245 coal Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000002956 ash Substances 0.000 description 3
- 239000010883 coal ash Substances 0.000 description 3
- 238000006477 desulfuration reaction Methods 0.000 description 3
- 230000023556 desulfurization Effects 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000002699 waste material 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)
Abstract
The present invention discloses a fly ash-based grouting material for the underground grouting of a building. The grouting material is composed of fly ash whose the addition amount is higher than 70%, a small amount of cement and a composite additive, wherein the composite additive is composed of sodium sulfate, sodium carbonate, a water reducing agent and bentonite. The fly ash in the pouring material is particularly suitable for the existing calcium-increasing and desulfurizing fly ash with a low utilization ratio, effectively protects environment and reduces cost. Prepared grout fluid has good performance after the composite additive is added. Compared with the existing fly ash-based grouting material, the present invention increases the strength of calculus bodies and obviously improves the flowing performance of the grout fluid.
Description
One, technical field
The present invention relates to a kind of buildings grouting material, particularly a kind of fly ash base grouting material.
Two, background technology
Flyash is to be the heat power station of fuel or the solid waste that heat power plant discharged with the coal, and China surpasses 100,000,000 tons because of the flyash that generating is discharged every year, and the utilization of coal ash rate is not high, and the average utilization in the whole nation only has about 40%.Strict more along with environmental requirement in recent years becomes extremely urgent to the comprehensive utilization of flyash.Because the coal sulphur content of China is all higher, and fine low-sulfur coal is used for metallurgy industry mostly, therefore the content of sulfurous gas is higher in the power station discharged flue gas, for fear of these sulfur dioxide emissions in atmosphere, the power station has adopted flue gas desulfurization technique, and desulfurization technology commonly used has limestone-gypsum wet method, in-furnace calcium spraying method, semidrying etc.Wherein adopt the flyash of limestone-gypsum wet processing discharging to belong to low calcium ash, utilization ratio is higher, and the flyash that adopts in-furnace calcium spraying method and semi-dry desulfurizing process to be discharged belongs to and increases the calcium desulfurizing ash, utilization ratio is but very low, adopt fluidized-bed process mostly for the power station that with the coal gangue is fuel in addition, the desulfurization of in-furnace calcium spraying technology, what the flyash of its discharging also belonged to poor efficiency increases the calcium desulfurizing ash, and up to the present, at the effective problem of utilizing of calcium enriched desulfurated fly ash, relevant both at home and abroad report seldom and is mainly used in production cement, concrete, mineral wool, brickmaking, embankment etc.
Adopt cement as injecting paste material in the Grouting engineering in a large number, but cement injection cost height, slurries stability is bad, and the calculus rate is low.Can reduce cost by adding coal ash or slag, but its intensity descends significantly behind the adding coal ash, and flowing property is not good.Few for the research of flyash in great mixed amount injecting paste material (volume is greater than 70%) at present, a kind of flyash injecting paste material is disclosed in the Chinese patent 931039992.4, it is mainly prepared burden and is flyash, clay, slaked lime, glass and water, there is not silicate cement, but its consolidating strength is lower, mobile relatively poor, and the flyash of its use is low calcium fly ash.
Three, summary of the invention
1, goal of the invention: the purpose of this invention is to provide a kind of doping quantity of fly ash greater than 70%; slurry fluidity is good; the high fly ash base grouting material of intensity after the calculus; the calcium enriched desulfurated fly ash that its particularly suitable utilization ratio is low; not only made full use of the waste of coal fired power generation; protected environment, and grouting cost is reduced greatly.
2, technical scheme: a kind of fly ash base grouting material, its component and weight ratio are: flyash 70～77%, cement 18～26%, compound additive 3～6%; Compound additive wherein is sodium sulfate 0.5～2%, yellow soda ash 0.5～2%, water reducer 0.5～1.5%, wilkinite 0.5～3%.
Water reducer is preferably by naphthalene water reducer and compound the making of wooden calcium class water reducer.
Cement can adopt silicate cement, also can be 0～30% aluminosulfate cement and 70～100% silicate cement.
Flyash particularly suitable calcium enriched desulfurated fly ash.
Big volume (volume＞70%) uses flyash in injecting paste material, can cause consolidating strength low excessively, and it is very poor that flowability becomes.The present invention excites the activity of flyash by adding compound additive, has improved the intensity of calculus body, and has used water reducer, has then improved the flowing property of slurries.
3, beneficial effect: the present invention compared with prior art has following characteristics: (1) flyash is volume height (＞70%) in injecting paste material, and is specially adapted to the very low calcium enriched desulfurated fly ash of present utilization ratio, has effectively protected environment, has reduced cost; (2) size performance for preparing behind the adding compound additive is good, compares with existing fly ash base grouting material, and the intensity of calculus body improves, and the flowing property of slurries is obviously improved.
Four, embodiment
Embodiment 1:
Component and ratio: flyash 76%, silicate cement 19.6%, compound additive 4.4%.In the compound additive: water reducer 0.5%, yellow soda ash 0.9%, sodium sulfate 1.0% and wilkinite 2%.(being weight ratio)
Technology: each component is mixed back grinding to 45 μ m tail over, mix in the ratio of 1:0.8 with water again, promptly make injecting paste material through abundant stirring less than 10%.
Effect: the slurry degree is 20.2s, and placing after 30 minutes is 21s, and bleed rate 0.1%, calculus rate are 99.5%, and calculus body 3d ultimate compression strength is 3MPa, and 28d ultimate compression strength is 9MPa.
Embodiment 2:
Component and ratio: flyash 77%, silicate cement 19%, compound additive: 4%.In the compound additive: water reducer 0.6%, yellow soda ash 1%, sodium sulfate 1.4% and wilkinite 1%.
Technology: with embodiment 1.
Effect: the slurry degree is 16s, and placing after 30 minutes still is 16s, and bleed rate 0.2%, calculus rate are 99.5%, and calculus body 3d ultimate compression strength is 2.7MPa, and 28d ultimate compression strength is 8.6MPa.
Embodiment 3:
Component and ratio: flyash 70%, silicate cement 23%, aluminosulfate cement 3%, compound additive: 3%.In the compound additive: water reducer 0.9%, yellow soda ash 0.5%, sodium sulfate 0.5% and wilkinite 1.1%.
Technology: each component is mixed back grinding to 45 μ m tail over, mix in 1: 1 ratio with water again, promptly make injecting paste material through abundant stirring less than 10%.
Effect: the slurry degree is 19.1s, and placing after 30 minutes still is 21s, and bleed rate 0.7%, calculus rate are 99.0%, and calculus body 3d ultimate compression strength is 3.0MPa, and 28d ultimate compression strength is 9.4MPa.
Embodiment 4:
Component and ratio: flyash 71%, silicate cement 26%, compound additive: 3%.In the compound additive: water reducer 0.8%, yellow soda ash 0.7%, sodium sulfate 0.5% and wilkinite 1.0%.
Technology: each component is mixed back grinding to 45 μ m tail over, mix in 1: 0.8 ratio with water again, promptly make injecting paste material through abundant stirring less than 10%.
Effect: the slurry degree is 18.3s, and placing after 30 minutes still is 20.6s, and bleed rate 0.9%, calculus rate are 98.9%, and calculus body 3d ultimate compression strength is 2.9MPa, and 28d ultimate compression strength is 9.4MPa.
Embodiment 5:
Component and ratio: flyash 70%, silicate cement 24%, compound additive: 6%.In the compound additive: water reducer 1.0%, yellow soda ash 0.8%, sodium sulfate 1.2% and wilkinite 3.0%.
Technology: each component is mixed back grinding to 45 μ m tail over, mix in 1: 1.0 ratio with water again, promptly make injecting paste material through abundant stirring less than 10%.
Effect: the slurry degree is 19.8s, and placing after 30 minutes still is 21.1s, and bleed rate 1.2%, calculus rate are 98.5%, and calculus body 3d ultimate compression strength is 2.7MPa, and 28d ultimate compression strength is 8.5MPa.
Claims (5)
1, a kind of fly ash base grouting material is characterized in that its component and weight ratio are: flyash 70～77%, cement 18～26%, compound additive 3～6%; Compound additive wherein is sodium sulfate 0.5～2%, yellow soda ash 0.5～2%, water reducer 0.5～1.5%, wilkinite 0.5～3%.
2, fly ash base grouting material according to claim 2 is characterized in that: described water reducer is naphthalene water reducer and compound the making of wooden calcium class water reducer.
3, fly ash base grouting material according to claim 1 and 2 is characterized in that: described cement is silicate cement.
4, fly ash base grouting material according to claim 1 and 2 is characterized in that: described cement is 0～30% aluminosulfate cement and 70～100% silicate cement.
5, fly ash base grouting material according to claim 1 is characterized in that: described flyash is calcium enriched desulfurated fly ash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100401949A CN1275894C (en) | 2005-05-24 | 2005-05-24 | Fly ash base grouting material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100401949A CN1275894C (en) | 2005-05-24 | 2005-05-24 | Fly ash base grouting material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1699245A CN1699245A (en) | 2005-11-23 |
| CN1275894C true CN1275894C (en) | 2006-09-20 |
Family
ID=35475530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100401949A Expired - Fee Related CN1275894C (en) | 2005-05-24 | 2005-05-24 | Fly ash base grouting material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1275894C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102001847B (en) * | 2010-10-21 | 2013-01-16 | 山东大学 | Paste quick-setting grouting material and preparation method thereof |
| CN104609797A (en) * | 2014-12-12 | 2015-05-13 | 安徽恒源煤电股份有限公司 | A coal ash-cement mortar grouting material |
| CN105481324A (en) * | 2015-12-15 | 2016-04-13 | 嘉华特种水泥股份有限公司 | Inorganic grouting blocking material |
| CN105777021B (en) * | 2016-04-19 | 2018-04-13 | 河南力行科创矿山技术开发有限公司 | Coal mine fully-mechanized mining working lead abutment pressure area deep hole grouting material and preparation method |
| CN106220101A (en) * | 2016-08-12 | 2016-12-14 | 卓达新材料科技集团威海股份有限公司 | A kind of flyash base polymers grouting material and preparation method thereof |
| CN106673599A (en) * | 2016-12-22 | 2017-05-17 | 芜湖恒杰膨润土科技有限公司 | Bentonite for ceramic and preparation method thereof |
-
2005
- 2005-05-24 CN CNB2005100401949A patent/CN1275894C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1699245A (en) | 2005-11-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060920 |