CN100532305C - High-strength composite cement additive - Google Patents
High-strength composite cement additive Download PDFInfo
- Publication number
- CN100532305C CN100532305C CNB2007101395253A CN200710139525A CN100532305C CN 100532305 C CN100532305 C CN 100532305C CN B2007101395253 A CNB2007101395253 A CN B2007101395253A CN 200710139525 A CN200710139525 A CN 200710139525A CN 100532305 C CN100532305 C CN 100532305C
- Authority
- CN
- China
- Prior art keywords
- cement
- strength composite
- cement additive
- additive
- clinker
- 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
Classifications
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- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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- 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
- C04B28/02—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 hydraulic cements other than calcium sulfates
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- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0004—Compounds chosen for the nature of their cations
- C04B2103/0006—Alkali metal or inorganic ammonium compounds
- C04B2103/0007—K
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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
This invention relates to a cement additive, particularly a kind of high strength composite cement additive. It solves the problem of the prior art production of cement with higher percentage of clinker. It is composed of (by weight percentages): calcium oxide 30-40%, alunite 30-40%, sodium tripolyphosphate 1-3%, sodium sulfite 1-3%, Mirability 15-25%, potassium formiate 5-10%, tri-isopropanolamine 1-3%. During production, this inventive product can be added direct into the clinker or ore powder. The percentage of used clinker can be reduced to 30%, with no affecting the properties of the cement and lowering the production cost greatly.
Description
Technical field
The present invention relates to a kind of cement additire, be specially a kind of high-strength composite cement additive.
Background technology
Come out 180 for many years from Britain's portland cement, Cement Production technology does not have any too big improvement basically, and the consumption of grog maintains more than 70% always.For the performance of improving cement with reduce cost, developed multiple cement additire in recent years both at home and abroad, a part of additive is based on organism, and a part is based on inorganic composition.These additive effects all are in order to improve cement performance and to change the cement clinker usage ratio basically, and the use proportional quantity of grog also maintains 45～60% level substantially.Application number is that a kind of composite additive has been put down in writing in 200510017440 applications for a patent for invention, is made by weight for 10 parts by 30 parts in sodium sulfate, 10 parts in Tai-Ace S 150,30 parts in calcium chloride, 20 parts in calcium sulfate, white lime.As everyone knows, mix slag in the silicate cement more, cement early strength is reduced, the speed of setting and harden is slack-off, and intensity enhancement rate descends, and the qualitative change of cement product is bad.The reason initial analysis that produces this phenomenon thinks that because the hydration reaction of slag and calcium hydroxide is slow the high institute of reaction activity consumption causes.
Summary of the invention
The present invention provides a kind of high-strength composite cement additive in order to solve the higher problem of cement clinker usage quantity that exists in the prior art.
The present invention is realized by following technical scheme, a kind of high-strength composite cement additive, form by weight proportion by following raw materials according, calcium oxide 30～40%, alunite 30～40%, tripoly phosphate sodium STPP 1～3%, S-WAT 1～3%, saltcake 15～25%, potassium formiate 5～10%, tri-isopropanolamine 1～3%.
The mixture of aforementioned proportion is pulverized the back to be incorporated in grog and the slag according to 1～1.5% part by weight and to get final product.Additive of the present invention participates in hydration reaction within a certain period of time, and activated slag intrinsic activity composition generates the silicate gel material, and the lattice of promoting cement stone generates intensity, and scoriaceous dosage uses the performance that can not influence cement fully.Because the hydration reaction degree strengthens, only can produce 42.5 grades of Portland blasts with 30% grog.The nontoxic no stink of cement additire of the present invention, nonflammable, can not explode, chloride ion-containing not, etching apparatus is not safe and reliable.Also need not to change existing manufacturing technique and equipment in use.
Following table is the practical effect report of the present invention in Hebei and two tame cement mill, Shanxi.
The present invention can be used for few grog (30%) cement, also can be used to not have simultaneously grog (slag is more than 90%) cement, strengthens additive capacity and just can produce 22.5 grades of clinker-free cements.High quality cement grog costs an arm and a leg, and market price per ton is at 200～220 yuan, and the Shanxi slag transports to that the price in cement mill is per ton also to be no more than 20 yuan, and so, grog and slag price differ about 10 times.From cost of material, keeping reducing the usage quantity of grog under the constant situation of cement performance; increase scoriaceous usage quantity, can significantly save cost, saved natural resource simultaneously; reduce energy consumption, reduced environmental pollution, significant to the environment for human survival protection.
The present invention and application number are the 200510017440 described composite additives tables of comparing.
| Title | The A group | The B group | The C group |
| Grog % | 60.0 | 30.0 | 30.0 |
| Slag % | 37.0 | 66.0 | 66 |
| Gypsum % | 3.0 | 4.0 | 4.0 |
| Additive % | 2 | 1.5 | 1.0 |
| The result | Experimental result | Experimental result | |
| Fineness | 1.4 | 1.5 | 1.4 |
| Specific surface area | 347 | 339 | 383 |
| Standard consistency | 26.50 | 26.4 | 24.15 |
| Presetting period | 3：22 | 2：57 | 2：15 |
| Final setting time | 5：13 | 4：15 | 4：0 |
| Stability | Qualified | Qualified | Qualified |
| The anti-folding of 1D | 2.6 | ||
| The anti-folding of 3D | 4.2 | 5.0 | 3.4 |
| The anti-folding of 28D | 8.4 | 9.0 | 8.5 |
| The 1D resistance to compression | 7.7 | ||
| The 3D resistance to compression | 15.8 | 20.00 | 15.6 |
| The 28D resistance to compression | 40.0 | 48.20 | 45.9 |
The A group is 200510017440 described composite additives for having used application number in the last table, and B, C group is respectively the additive of the present invention that has used different additions.Many from the use of raw material usage quantity A group agglomerate ratio B group with 30%, Duo with 30% than the C group, make 60～70 yuan of costs of manufacture of cement increase per ton.And from cement performance, 28 days ultimate compression strength A groups are than the low 7.80Mpa of B group, and than the low 5.50Mpa of C group, if B, C group is equally also used 60% grog, 28 days ultimate compression strength of B group can exceed A group 15.6Mpa, and the C group can surpass A group 11.0Mpa equally.
Embodiment
Embodiment 1, and a kind of high-strength composite cement additive is made of by weight proportion following raw materials according, calcium oxide 30%, alunite 40%, tripoly phosphate sodium STPP 3%, S-WAT 3%, saltcake 15%, potassium formiate 6%, tri-isopropanolamine 3%.
Embodiment 2, and a kind of high-strength composite cement additive is made of by weight proportion following raw materials according, calcium oxide 40%, alunite 30%, tripoly phosphate sodium STPP 1%, S-WAT 1%, saltcake 15%, potassium formiate 5%, tri-isopropanolamine 3%.
Embodiment 3, and a kind of high-strength composite cement additive is made of by weight proportion following raw materials according, calcium oxide 35%, alunite 30%, tripoly phosphate sodium STPP 2%, S-WAT 2%, saltcake 25%, potassium formiate 5%, tri-isopropanolamine 1%.
Embodiment 4, and a kind of high-strength composite cement additive is made of by weight proportion following raw materials according, calcium oxide 34%, alunite 34%, tripoly phosphate sodium STPP 1.5%, S-WAT 1.5%, saltcake 20%, potassium formiate 7%, tri-isopropanolamine 2%.
Claims (2)
1, a kind of high-strength composite cement additive is characterized in that: be made of calcium oxide 30～40% by weight percentage following raw materials according, alunite 30～40%, tripoly phosphate sodium STPP 1～3%, S-WAT 1～3%, saltcake 15～25%, potassium formiate 5～10%, tri-isopropanolamine 1～3%.
2, high-strength composite cement additive according to claim 1 is characterized in that: be made of calcium oxide 34% by weight percentage following raw materials according, alunite 34%, tripoly phosphate sodium STPP 1.5%, S-WAT 1.5%, saltcake 20%, potassium formiate 7%, tri-isopropanolamine 2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101395253A CN100532305C (en) | 2007-09-28 | 2007-09-28 | High-strength composite cement additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101395253A CN100532305C (en) | 2007-09-28 | 2007-09-28 | High-strength composite cement additive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101164951A CN101164951A (en) | 2008-04-23 |
| CN100532305C true CN100532305C (en) | 2009-08-26 |
Family
ID=39333833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101395253A Expired - Fee Related CN100532305C (en) | 2007-09-28 | 2007-09-28 | High-strength composite cement additive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100532305C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104108893A (en) * | 2013-04-17 | 2014-10-22 | 哈尔滨工业大学强石混凝土技术开发有限责任公司 | Fly ash activator |
| CN106431053A (en) * | 2016-09-22 | 2017-02-22 | 李艳荣 | Cement additive for buildings |
| JP7407556B2 (en) | 2019-10-21 | 2024-01-04 | 株式会社日本触媒 | Additive for cement, cement composition, and method for improving cement strength |
-
2007
- 2007-09-28 CN CNB2007101395253A patent/CN100532305C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101164951A (en) | 2008-04-23 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090826 Termination date: 20140928 |
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| EXPY | Termination of patent right or utility model |