CN1513787A - Modification method of sulfur aluminate cement - Google Patents
Modification method of sulfur aluminate cement Download PDFInfo
- Publication number
- CN1513787A CN1513787A CNA031432514A CN03143251A CN1513787A CN 1513787 A CN1513787 A CN 1513787A CN A031432514 A CNA031432514 A CN A031432514A CN 03143251 A CN03143251 A CN 03143251A CN 1513787 A CN1513787 A CN 1513787A
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- CN
- China
- Prior art keywords
- cement
- aluminosulfate
- gypsum
- modification
- clinker
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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
- C04B28/06—Aluminous cements
Abstract
A process for modifying the thioaluminate cement features that the thioaluminate cement is mixed with silicate cement as modifier and gypsum as modifying regulator. The modifier cement features quick solidification and hardening, high early strength, low content of alkali, and low cost.
Description
Technical field
The invention belongs to method, specifically common aluminosulfate cement is modified as the method for extraordinary quality and purposes cement for the Portland cement modified synergistic.
Background technology
Aluminosulfate cement is a kind commonly used in the present Portland cement, though its engineering characteristic and physical index are better than silicate cement, its relative cost is higher than silicate cement.In special engineering construction to its early coagulate, when a series of chemical index such as fast hard, low alkali require further to improve, need proportioning comparatively expensive natural anhydrite or some other organic modifiers, this will inevitably be more a step improve its cost, the aluminosulfate cement after the modification can only or must usefulness be speedily carried out rescue work, rush to repair under the occasion and could use in special engineering.This applies the modified sulphur aluminate cement, has formed a price obstacle to bringing up the more high quality engineering.
Summary of the invention
The objective of the invention is to utilize cheap properties-correcting agent and simple method of modifying to make the aluminosulfate cement that is possessed of good qualities after the modification have special engineering index and cheap production cost, be beneficial to applying on engineering.
Key of the present invention has been to design one and has made the low-cost modified method of sulplo-aluminate, this method is exactly as base-material with aluminosulfate cement or grog, again with silicate cement or grog as properties-correcting agent, simultaneously proportioning is mixed gypsum and is made the modification conditioning agent and be mixed and form, and forms the modified sulphur aluminate cement thereby the physicochemical property of aluminosulfate cement is improved.
This method is not to be based upon the imagination that has no on the theoretical basis.Though anxious coagulating appears in the meeting after mixing of aluminosulfate cement and silicate cement, thereby is considered as forbidding mixing use by cement industry.But the contriver is at long term studies aluminosulfate cement and the mixed hydration reaction of silicate cement intersection proportioning, and find in the performance variation law that the rational curve of its mixing match can produce the characteristic element of modification each other under gypsum is regulated, and grasped the weight ratio principle of its proportioning modification, thereby not only realized the possibility of proportioning modification, and two big cement are had complementary advantages, produced active effect.
The embodiment that just enumerates below further specifies and the objective of the invention is how to realize.
Embodiment
Make base-material with regard to aluminosulfate cement or grog respectively below, reach silicate cement or grog and do properties-correcting agent, enumerate different embodiment respectively.
With the aluminosulfate cement is base-material, is properties-correcting agent with the silicate cement
| Sequence number | Aluminosulfate cement % | Silicate cement % | Gypsum % |
| ????1 | ????70 | ????20 | ????10 |
| ????2 | ????87 | ????6 | ????7 |
| ????3 | ????98 | ????2 | ????0 |
| ????4 | ????90 | ????2 | ????8 |
| ????5 | ????81 | ????12 | ????7 |
| ????6 | ????75 | ????20 | ????5 |
| ????7 | ????92 | ????8 | ????0 |
| ????8 | ????87 | ????8 | ????5 |
| ????9 | ????80 | ????10 | ????10 |
With the aluminosulfate cement is base-material, is properties-correcting agent with the Portland clinker
| Sequence number | Aluminosulfate cement % | Portland clinker % | Gypsum % |
| ????1 | ????75 | ????15 | ????10 |
| ????2 | ????88 | ????6 | ????6 |
| ????3 | ????95 | ????5 | ????0 |
| ????4 | ????85 | ????5 | ????10 |
| ????5 | ????80 | ????15 | ????5 |
| ????6 | ????75 | ????25 | ????0 |
| ????7 | ????80 | ????20 | ????0 |
| ????8 | ????82 | ????8 | ????10 |
| ????9 | ????88 | ????7 | ????15 |
With the sulphoaluminate cement clinker is base-material, is properties-correcting agent with the silicate cement
| Sequence number | Sulphoaluminate cement clinker % | Silicate cement % | Gypsum % |
| ????1 | ????70 | ????13 | ????17 |
| ????2 | ????85 | ????8 | ????7 |
| ????3 | ????90 | ????5 | ????5 |
| ????4 | ????81 | ????5 | ????14 |
| ????5 | ????73 | ????15 | ????12 |
| ????6 | ????70 | ????25 | ????5 |
| ????7 | ????85 | ????10 | ????5 |
| ????8 | ????76 | ????9 | ????15 |
| ????9 | ????70 | ????5 | ????25 |
With the silicate cement is base-material, is properties-correcting agent with the sulfate cement grog
| Sequence number | Sulphoaluminate cement clinker % | Portland clinker % | Gypsum % |
| ????1 | ????70 | ????15 | ????15 |
| ????2 | ????86 | ????8 | ????6 |
| ????3 | ????93 | ????2 | ????5 |
| ????4 | ????85 | ????2 | ????13 |
| ????5 | ????75 | ????15 | ????10 |
| ????6 | ????70 | ????25 | ????5 |
| ????7 | ????80 | ????15 | ????5 |
| ????8 | ????77 | ????5 | ????18 |
| ????9 | ????70 | ????2 | ????28 |
Experiment repeatedly and modern detection means (bag is opened up X-diffraction, electron-microscope scanning) have all proved by means of silicate cement or grog does the properties-correcting agent realization to the aluminosulfate cement modification, improved its early strong, fast hard, rapid hardening, and the index of low basicity, also stayed simultaneously and replenished the leeway of dosing blended material, this not only makes modified cement obtain success, and greatly reduce the cost of modified sulphur aluminic acid cement, aluminosulfate cement becomes the preparation quick-set after making modification, the basic raw material of fast repairing material and grouting restoring material.Particularly as the technical requirements of gypsum conditioning agent under silicate modified effect, scope broadens, and can adopt natural anhydrite, also can adopt dihydrate gypsum, dehydrated phosphogypsum, or fluorgypsum, wherein any one, two or more mixing.So more be added with in the improvement of the modified sulphur aluminate cement ratio of performance to price, will promote the further exploitation of aluminosulfate cement modification series product, for the application extension of cement on engineering immensity.
Claims (6)
1, a kind of method of aluminosulfate cement modification is characterized in that this modified cement is to make base-material by aluminosulfate cement or grog, and silicate cement or grog are done properties-correcting agent, adds to join gypsum and make conditioning agent and be mixed and form.
2, according to the method for the said aluminosulfate cement modification of claim 1, it is characterized in that with the aluminosulfate cement being base-material, the ingredients by weight per-cent component of modified cement was as follows when silicate cement was properties-correcting agent:
Aluminosulfate cement 70%-98%,
Silicate cement 2%-20%,
Gypsum 0%-10%.
3, according to the method for the said aluminosulfate cement modification of claim 1, it is characterized in that with the aluminosulfate cement being base-material, when Portland clinker was properties-correcting agent, the ingredients by weight per-cent component of modified cement was as follows:
Aluminosulfate cement 75%-95%,
Portland clinker 5%-25%,
Gypsum 0%-15%.
4, according to the method for the said aluminosulfate cement modification of claim 1, it is characterized in that with the sulphoaluminate cement clinker being base-material, when silicate cement was properties-correcting agent, the ingredients by weight per-cent component of modified cement was as follows:
Sulphoaluminate cement clinker 70%-90%,
Silicate cement 5%-25%,
Gypsum 5%-25%.
5, according to the method for the said aluminosulfate cement modification of claim 1, it is characterized in that with the sulphoaluminate cement clinker being base-material, when Portland clinker was properties-correcting agent, the ingredients by weight per-cent component of modified cement was as follows:
Sulphoaluminate cement clinker 70%-90%,
Portland clinker 10%-25%,
Gypsum 5%-30%.
6, according to the method for the said aluminosulfate cement modification of claim 1, the said gypsum of its feature is a natural anhydrite, or dihydrate gypsum, or the dehydration anhydrite, or fluorgypsum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03143251 CN1264771C (en) | 2003-08-19 | 2003-08-19 | Modification method of sulfur aluminate cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03143251 CN1264771C (en) | 2003-08-19 | 2003-08-19 | Modification method of sulfur aluminate cement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1513787A true CN1513787A (en) | 2004-07-21 |
| CN1264771C CN1264771C (en) | 2006-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03143251 Expired - Lifetime CN1264771C (en) | 2003-08-19 | 2003-08-19 | Modification method of sulfur aluminate cement |
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| Country | Link |
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| CN (1) | CN1264771C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101370745B (en) * | 2005-11-14 | 2012-04-25 | 新日本石油株式会社 | Binder containing modified sulfur and process for producing material containing modified sulfur |
| CN103332919A (en) * | 2013-07-10 | 2013-10-02 | 南京瑞迪高新技术有限公司 | Special assembly adhesive for harbor prestressed concrete large pile tube, and preparation method thereof |
| CN101555106B (en) * | 2009-04-03 | 2014-06-25 | 广东龙湖科技股份有限公司 | Composite cementitious material and ground self-leveling mortar using same |
-
2003
- 2003-08-19 CN CN 03143251 patent/CN1264771C/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101370745B (en) * | 2005-11-14 | 2012-04-25 | 新日本石油株式会社 | Binder containing modified sulfur and process for producing material containing modified sulfur |
| CN101555106B (en) * | 2009-04-03 | 2014-06-25 | 广东龙湖科技股份有限公司 | Composite cementitious material and ground self-leveling mortar using same |
| CN103332919A (en) * | 2013-07-10 | 2013-10-02 | 南京瑞迪高新技术有限公司 | Special assembly adhesive for harbor prestressed concrete large pile tube, and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1264771C (en) | 2006-07-19 |
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Assignee: ZHEJIANG LAOHUSHAN BUILDING MATERIALS Co.,Ltd. Assignor: Chen Zhifeng Contract record no.: 2010330001008 Denomination of invention: Modification method of sulfur aluminate cement Granted publication date: 20060719 License type: Exclusive License Open date: 20040721 Record date: 20100524 |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20060719 |