CN1513791A - Method of portland cement modificntion - Google Patents
Method of portland cement modificntion Download PDFInfo
- Publication number
- CN1513791A CN1513791A CNA031432522A CN03143252A CN1513791A CN 1513791 A CN1513791 A CN 1513791A CN A031432522 A CNA031432522 A CN A031432522A CN 03143252 A CN03143252 A CN 03143252A CN 1513791 A CN1513791 A CN 1513791A
- Authority
- CN
- China
- Prior art keywords
- cement
- silicate
- gypsum
- clinker
- modification
- 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.)
- Granted
Links
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
- C04B28/02—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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A process for modifying silicate cement features that the silicate cemkent, thioaluminate cement as modifier and gypsum as modifying regulator and proportionally mixed. Its advantages are fast solidifying and hardening, early strengthening, and low cost.
Description
Technical field
The invention belongs to method, specifically common silicate cement is modified as special cement or improves the method for its label and range of application for the Portland cement modified synergistic.
Background technology
Silicate cement is present prevailing a kind of cement, uses widely among normal domestic building and the common engineering building.It has practical value and adaptability widely aspect cheap, firm, stable, lasting really.But it comes littler than its hydration heat, fast hard, Zao strong poor performance, aquation resultant liquefaction basicity height with aluminosulfate cement, all there is a big difference for the ultimate compression strength after hardening etc.Particularly low-grade silicate cement.Its physical and chemical index more can't be mentioned in the same breath with aluminosulfate cement.So concrete use and construction in the modification of silicate cement is all being attached great importance to, though domesticly have his own strong points on the modified cement concrete grammar, cheap and practical method is actually rare.No matter be with high-quality aluminium vanadine, the refinement volcanic ash, anion-modified dose of sun, or add in numerous methods such as filling out glass fibre, otherwise be exactly operate cumbersome, otherwise be exactly that cost is higher, otherwise be exactly that its critical index is not all had significantly effect as early coagulate, fast hard etc., cheap and significant method of modifying be we can say and had not yet to see report.
Summary of the invention
The method that the purpose of this invention is to provide a silicate cement modification its objective is and utilizes cheap and effectual properties-correcting agent, directly improves the physicochemical property of ordinary Portland cement, particularly improves its early strength, rapid hardening and anti-pressure ability index aspect.
Concrete design of the present invention derives from the contriver for a long time to the research and the test of aluminosulfate cement and the compound character that is mixed of silicate cement.The mass data of test-results shows that being mixed of low-dosage between the two can realize effectively properties-correcting agent each other and improve the physicochemical property index of base-material cement greatly.Aluminosulfate cement and silicate cement can not use in blending in the cement industry, are actually mistaken ideas.The a small amount of blending of silicate cement allocate into coagulate the morning of aluminosulfate cement, every index such as fast hard, low alkali all increases.And aluminosulfate cement can improve its sclerosis index among mixing silicate cement on a small quantity equally greatly, early strength and rapid hardening characteristic, and sulplo-aluminate is sufficient and cheap raw material as properties-correcting agent by contrast, is again a simple and exercisable technological process for production process.By further research, add gypsum and make the modification conditioning agent, make the silicate cement modification more effectively with obvious.And the using value of silicate cement own is improved greatly, this is simple, an effective and economical method of modifying.
Below in conjunction with given modification embodiment, further specify and the objective of the invention is how to realize.
Embodiment
Below given be with silicate cement or grog, be properties-correcting agent with aluminosulfate cement or grog, add and join the embodiment that gypsum is the made modified cement of modification conditioning agent.
Portland cement clinker is a base-material, and aluminosulfate cement is a properties-correcting agent
| Sequence number | Portland clinker % | Aluminosulfate cement % | Gypsum % |
| ????1 | ????80 | ????10 | ????10 |
| ????2 | ????85 | ????10 | ????5 |
| ????3 | ????90 | ????5 | ????5 |
| ????4 | ????90 | ????2 | ????8 |
| ????5 | ????85 | ????7 | ????8 |
| ????6 | ????82 | ????10 | ????8 |
| ????7 | ????88 | ????10 | ????2 |
| ????8 | ????85 | ????8 | ????7 |
| ????9 | ????82 | ????8 | ????10 |
With the silicate cement is base-material, is properties-correcting agent with sulphur aluminium salt cement
| Sequence number | Portland clinker % | Aluminosulfate cement % | Gypsum % |
| ????1 | ????85 | ????8 | ????7 |
| ????2 | ????90 | ????5 | ????5 |
| ????3 | ????95 | ????5 | ????0 |
| ????4 | ????87 | ????5 | ????8 |
| ????5 | ????86 | ????8 | ????6 |
| ????6 | ????88 | ????10 | ????2 |
| ????7 | ????92 | ????8 | ????0 |
| ????8 | ????88 | ????7 | ????5 |
| ????9 | ????85 | ????5 | ????10 |
With the Portland clinker is base-material, is properties-correcting agent with the sulphoaluminate cement clinker
| Sequence number | Portland clinker % | Sulphoaluminate cement clinker % | Gypsum % |
| ????1 | ????95 | ????2 | ????3 |
| ????2 | ????85 | ????10 | ????5 |
| ????3 | ????80 | ????15 | ????5 |
| ????4 | ????93 | ????2 | ????5 |
| ????5 | ????85 | ????10 | ????5 |
| ????6 | ????80 | ????15 | ????5 |
| ????7 | ????87 | ????10 | ????3 |
| ????8 | ????83 | ????15 | ????2 |
| ????9 | ????80 | ????5 | ????15 |
With the silicate cement is base-material, is properties-correcting agent with the sulfate cement grog
| Sequence number | Silicate cement % | Sulphoaluminate cement clinker % | Gypsum % |
| ????1 | ????85 | ????9 | ????6 |
| ????2 | ????90 | ????5 | ????5 |
| ????3 | ????95 | ????2 | ????3 |
| ????4 | ????90 | ????2 | ????8 |
| ????5 | ????84 | ????10 | ????6 |
| ????6 | ????80 | ????15 | ????5 |
| ????7 | ????89 | ????8 | ????3 |
| ????8 | ????86 | ????6 | ????8 |
| ????9 | ????83 | ????4 | ????13 |
The gypsum of taking of above modification conditioning agent is meant natural anhydrite, or dehydrated phosphogypsum, or dihydrate gypsum, or the effective component content of the corresponding natural anhydrite of fluorgypsum.Can use the above a kind of or mixture more than two kinds and two kinds.
By repetition test and detection (standardization that comprises X-diffraction and electron-microscope scanning and cement-like piece detects) to modified portland cement among the embodiment, really can change the physical and chemical index that covers silicate cement effectively by means of sulphur aluminic acid cement or grog as properties-correcting agent, particularly early coagulate, early strength and rapid hardening time, the physical index after its sclerosis also has raising.Thereby the label and the value of silicate cement, a kind of effective silicate cement method of modifying of can yet be regarded as have been improved greatly with a spot of aluminosulfate cement and gypsum conditioning agent.
Claims (6)
1, a kind of method of silicate cement modification is characterized in that this method is to make base-material by silicate cement or grog, and aluminosulfate cement or grog are done properties-correcting agent, adds gypsum and makees conditioning agent and be mixed and form.
2, according to the method for the said silicate cement modification of claim 1, it is characterized in that making base-material with Portland clinker, aluminosulfate cement is that the each component weight percent of modified cement is when changing agent:
Portland clinker 82%-90%,
Aluminosulfate cement 2-10%,
Gypsum 2-10%.
3, according to the method for the said silicate cement modification of claim 1, it is characterized in that with the Portland clinker being base-material, when sulphoaluminate cement clinker was properties-correcting agent, the ingredients by weight per-cent of modified cement was:
Portland clinker 80%-95%,
Sulphoaluminate cement clinker 2%-15%,
Gypsum 3%-15%.
4, according to the method for the said silicate cement modification of claim 1, it is characterized in that with the silicate cement being base-material, the ingredients by weight per-cent component of the modified cement when being properties-correcting agent with the aluminosulfate cement is as follows:
Silicate cement 85%-95%,
Aluminosulfate cement 5%-10%,
Gypsum 0%-10%.
5, according to the method for the said silicate cement modification of claim 1, it is characterized in that with the silicate cement being base-material, the ingredients by weight per-cent of the modified cement when sulphoaluminate cement clinker is properties-correcting agent is as follows:
Silicate cement 80%-95%,
Sulphoaluminate cement clinker 2%-15%,
Gypsum 3%-13%.
6, according to the method for the said silicate cement modification of claim 1, it is characterized in that said gypsum is a natural anhydrite, or dehydrated phosphogypsum, or dihydrate gypsum, or fluorgypsum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03143252 CN1262511C (en) | 2003-08-19 | 2003-08-19 | Method of portland cement modificntion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03143252 CN1262511C (en) | 2003-08-19 | 2003-08-19 | Method of portland cement modificntion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1513791A true CN1513791A (en) | 2004-07-21 |
| CN1262511C CN1262511C (en) | 2006-07-05 |
Family
ID=34240379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03143252 Expired - Lifetime CN1262511C (en) | 2003-08-19 | 2003-08-19 | Method of portland cement modificntion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1262511C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101743193B (en) * | 2007-06-07 | 2012-01-18 | 国际壳牌研究有限公司 | Modified sulphur and product comprising modified sulphur as binder |
| CN104211102A (en) * | 2008-07-31 | 2014-12-17 | 吉野石膏株式会社 | Process for continuous modification of dihydrate gypsum and modified dihydrate gypsum obtained by the process |
| CN107082613A (en) * | 2017-03-30 | 2017-08-22 | 合肥金同维低温科技有限公司 | It is a kind of for anti-flammability insulation material of wall and preparation method thereof |
| CN109369076A (en) * | 2018-11-21 | 2019-02-22 | 杭州金鼎实业有限公司 | A kind of concrete and preparation method thereof |
| CN114507023A (en) * | 2022-03-18 | 2022-05-17 | 北京工业大学 | Calcium sulphoaluminate modified portland cement and preparation method thereof |
-
2003
- 2003-08-19 CN CN 03143252 patent/CN1262511C/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101743193B (en) * | 2007-06-07 | 2012-01-18 | 国际壳牌研究有限公司 | Modified sulphur and product comprising modified sulphur as binder |
| CN104211102A (en) * | 2008-07-31 | 2014-12-17 | 吉野石膏株式会社 | Process for continuous modification of dihydrate gypsum and modified dihydrate gypsum obtained by the process |
| CN104211102B (en) * | 2008-07-31 | 2016-07-06 | 吉野石膏株式会社 | The continuous way method of modifying of dihydrate gypsum |
| CN104261453B (en) * | 2008-07-31 | 2017-06-30 | 吉野石膏株式会社 | The method of modifying of dihydrate gypsum |
| CN107082613A (en) * | 2017-03-30 | 2017-08-22 | 合肥金同维低温科技有限公司 | It is a kind of for anti-flammability insulation material of wall and preparation method thereof |
| CN109369076A (en) * | 2018-11-21 | 2019-02-22 | 杭州金鼎实业有限公司 | A kind of concrete and preparation method thereof |
| CN109369076B (en) * | 2018-11-21 | 2021-09-07 | 杭州金鼎实业有限公司 | Concrete and preparation method thereof |
| CN114507023A (en) * | 2022-03-18 | 2022-05-17 | 北京工业大学 | Calcium sulphoaluminate modified portland cement and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1262511C (en) | 2006-07-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101917017B1 (en) | Rapid-setting and hardening, high-belite sulfoaluminate cement clinker as well as application and production process thereof | |
| CN101952216B (en) | Additives for cement | |
| CN103396026B (en) | Preparation method and new application of dolomite complex admixture | |
| CN100357209C (en) | Belite-calcium barium sulphoaluminate cement | |
| CN103803918A (en) | Porcelain powder waste mixed cement-based tiny-expansion crack repairing mortar and using method thereof | |
| CN106746783B (en) | A kind of erosion resistant road silicate cement clinker of highly resistance folding microdilatancy and road silicate cement preparation method | |
| CN102910852B (en) | Coagulant for super sulfate cement | |
| WO2009067774A3 (en) | Aluminous cement-based composition for application in endodontics and cementitious product obtained thereof | |
| CN110606722A (en) | Building wallboard and preparation method thereof | |
| CN101885589A (en) | Compound sulfate cement | |
| CN103922619A (en) | Desulfurized gypsum-based hydraulic cementing material | |
| CN101352893B (en) | Method for producing dry-mixed masonry motar using semidry desulfurized gypsum and blast-furnace slag | |
| CN110317034B (en) | Semi-hydrated phosphogypsum-based filling material and preparation method and application thereof | |
| JP2007126294A (en) | High-sulfate slag cement, high-early-strength slag cement, and method for manufacturing each of them | |
| CN1966449A (en) | Binder components building ettringite | |
| Chen et al. | Improved mechanical strength of magnesium oxysulfate cement using ferric sulfate | |
| CN104478385A (en) | Water-retaining plastering anhydrite and preparation method thereof | |
| CN1262511C (en) | Method of portland cement modificntion | |
| KR101431586B1 (en) | Cement compositions of rapid expansion agent using industrial by-products | |
| CN108585575B (en) | Cement retarder and preparation method and application thereof | |
| CN114988738B (en) | Modified dolomite powder, preparation method thereof and concrete | |
| CN102249570A (en) | Production method of red mud composite silicate masonry cement | |
| KR101345203B1 (en) | Low alkali non-cement concrete composition with tannin and block unit comprising the same | |
| CN111348849B (en) | Hydraulic lime and preparation method thereof | |
| CN102211892A (en) | Mortar thickening powder and preparation method and application thereof |
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 | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Municipal Road & Bridge Building Material Group Co.,Ltd. Assignor: Chen Zhifeng Contract fulfillment period: 2006.12.20 to 2011.12.19 Contract record no.: 2009110000191 Denomination of invention: Method of portland cement modificntion Granted publication date: 20060705 License type: Exclusive license Record date: 20090908 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2006.12.20 TO 2011.12.19; CHANGE OF CONTRACT Name of requester: BEIJING MUNICIPAL ROAD AND BRIDGE BUILDING MATERIA Effective date: 20090908 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20060705 |