CN1088186A - The preparation method of white cement - Google Patents
The preparation method of white cement Download PDFInfo
- Publication number
- CN1088186A CN1088186A CN 92114008 CN92114008A CN1088186A CN 1088186 A CN1088186 A CN 1088186A CN 92114008 CN92114008 CN 92114008 CN 92114008 A CN92114008 A CN 92114008A CN 1088186 A CN1088186 A CN 1088186A
- Authority
- CN
- China
- Prior art keywords
- white cement
- white
- cement
- wollastonite
- laubanite
- 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.)
- Pending
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
- C04B7/00—Hydraulic cements
- C04B7/02—Portland cement
-
- 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
- C04B2111/80—Optical properties, e.g. transparency or reflexibility
- C04B2111/802—White cement
Abstract
The invention discloses a kind of prescription that zeolite, wollastonite prepare white cement of using.Adopt the white cement of the inventive method preparation, not only can under the constant condition of white cement clinker output, improve white cement output, reduce its cost, and can improve the white cement later strength and improve its stability.
Description
The present invention relates to the technology of preparing category of white (or colored) cement, specifically, relate to the technology of preparing category of using zeolite, wollastonite preparation white (or colored) cement.
White (or colored) cement is mainly used in building decoration engineering, and can be mixed with colored mortar, preparation white and versicolor concrete.The higher limestone of purity, carclazyte and other subsidiary material (as kaolinite, alumina, fluorite etc.) batching is generally selected in the production of white cement for use.The raw material for preparing by metering after raw mill is levigate, enters rotary kiln through 1450～1550 ℃ high-temperature calcination, is white cement clinker behind the kiln discharge.This grog and 3～6% gypsum also can add the Wingdale common mix grinding in cement grinding mill that is no more than cement weight 5% and tail at the 0.080mm square hole sieve to fineness and be no more than 10%, are the white cement product.
In existing white cement production technology, adopt cement clinker to add a small amount of retardant basically and grind white cement.Because cement clinker is to form through high-temperature calcination, so energy consumption is very high in the white cement production process, causes white cement production cost height.Because of white cement mainly grinds by white cement clinker, the output of white cement clinker so the output of white cement places one's entire reliance upon when grog output is saturated, is difficult to improve white cement output again.
Purpose of the present invention is exactly to improve white cement output under the condition that does not increase cement clinker, and a kind of preparation method of white cement is provided.Adopt method of the present invention, not only can under the constant condition of white cement clinker output, improve white cement output, reduce its production cost, and can improve the white cement later strength and improve its stability.
Realize that concrete grammar of the present invention is:
The kiln ash that the laubanite (whiteness should greater than 50 degree), wollastonite (whiteness is greater than 60 degree), white cement clinker, whiteness of at first selecting to meet " calcareous addition of volcano that is used for cement " standard-required of GB2847-81 regulation all produces in dihydrate gypsum, Wingdale, rhombspar and the white cement production processes greater than 75 degree, whiteness greater than 75 degree, CaO content greater than 70% unslaked lime and whiteness greater than the kiln slags of 50 degree raw material as the preparation white cement.Earlier by having processing method now limestone, carclazyte, behind the feed proportionings such as fluorite, through the raw mill grinding, raw material are gone into rotary kiln and are made white cement clinker through 1450～1550 ℃ of high-temperature calcinations, again with the zeolite of whiteness greater than 50 degree, whiteness is greater than the wollastonite of 60 degree, whiteness is all greater than 75 Wingdales of spending, rhombspar and dihydrate gypsum are crushed to and meet the requirement of grinding machine mill feed size, then at the white cement clinker of cement grinding mill bistrique by weight 20～90%, 2～75% laubanite, in the wollastonite one or both, 0～20% Wingdale (or rhombspar, the kiln ash, white kiln slag), 3～6% dihydrate gypsum, the scope batching of 0～40% unslaked lime, reenter the common grinding of cement grinding mill to fineness and be not more than 10%, be white cement product of the present invention for the 0.080mm square hole sieve tails over.Present method also is applicable to the preparation of colored cement.
Realize optimum proportion scope of the present invention following (weight) %:
One, coventional type white cement
Example 1
White cement clinker 54～77%; A kind of in laubanite (or colored zeolite), the wollastonite or two kind 20～40%; Dihydrate gypsum 3～6%.
Example 2
White cement clinker 55～77%; In laubanite (or colored zeolite), the wollastonite one or both 15～25%; In Wingdale, rhombspar, white kiln slag, the kiln ash one or more 5～15%; Dihydrate gypsum 3～6%.
Two, build the type white cement by laying bricks or stones
Example 3
White cement clinker 24～37%; In laubanite (or colored zeolite), the wollastonite one or both 60～70%; Dihydrate gypsum 3～6%.
Three, no grog type white cement
Example 4
In laubanite, the wollastonite one or both 60～75%; Unslaked lime 20～30%; Dihydrate gypsum 5～10%.
The white cement performance that adopts example 1 ratio range to make is as follows:
1, whiteness 80.2～82.8 degree
2, stability is qualified
3, initial set time of coagulation is 2.5～3.5 hours; Final set 4.0～5.2 hours
4, intensity MPa
Ultimate compression strength:
3 days 7 days 28 days
18.14～24.04; 27.18～32.64; 48.83～50.03。
Folding strength:
3 days 7 days 28 days
3.49～4.36; 4.78～5.72; 7.48～7.90。
The white cement performance that adopts example 2 ratio ranges to make is as follows:
1, whiteness 81.0～83.9 degree
2, stability is qualified
3, initial set time of coagulation final set in 2.8～3.2 hours is 4.0～4.3 hours
4, intensity MPa
Ultimate compression strength:
3 days 7 days 28 days
21.41～22.76; 28.49～29.83; 48.50～49.67。
Folding strength:
3 days 7 days 28 days
3.30～4.17; 5.13～5.48; 7.20～7.63。
The white cement performance that adopts example 3 ratio ranges to make is as follows:
1, whiteness 78.9～81.7 degree
2, stability is qualified
3, initial set time of coagulation is 4.5～6.4 hours; Final set 6.0～6.6 hours
4, intensity MPa
Ultimate compression strength:
7 days 28 days
10.53～12.44; 24.08～26.73
Folding strength:
7 days 28 days
2.62～3.85; 6.45～7.00
The clinker-free cement performance that adopts example 4 ratio ranges to make is as follows:
1, whiteness 78.3～80.3 degree
2, stability is qualified
3, initial set time of coagulation is 5.0～6.6 hours; Final set 6.0～7.4 hours
4, intensity MPa
Ultimate compression strength:
7 days 28 days
8.87～11.45; 22.61～25.09
Folding strength:
7 days 28 days
1.83～2.24; 4.67～5.30
Adopt the white cement of embodiment of the invention preparation, its whiteness, stability, intensity all reach standard-required, and can make white cement significantly improve output, energy efficient, thereby can reduce the production cost of white cement (or colored cement) greatly.
Claims (5)
1, a kind of preparation method of white cement, it is characterized in that can selecting for use in its batching weight ratio account for 2～75% laubanite, in the wollastonite one or both, 0～20% Wingdale (or rhombspar, kiln ash, white kiln slag), 0～40% unslaked lime.
2, white cement batching according to claim 1 is characterized in that coventional type white cement prescription is (weight): white cement clinker 39～92%; A kind of in laubanite, the wollastonite or two kind 5～55%; Dihydrate gypsum 3～6%.
3, white cement batching according to claim 1 is characterized in that coventional type white cement prescription is (weight): white cement clinker 39～92%; In laubanite, the wollastonite one or both 5～35%; In Wingdale, rhombspar, white kiln slag, the kiln ash one or more 0～20%; Dihydrate gypsum 3～6%.
4, white cement batching according to claim 1 is characterized in that the prescription of building the type white cement by laying bricks or stones is (weight): white cement clinker 14～45%; In laubanite, the wollastonite one or both 49～83%; Dihydrate gypsum 3～6%.
5, white cement according to claim 1 batching is characterized in that the prescription that does not have grog type white cement is (weight): in laubanite, the wollastonite one or both 50～85%; Unslaked lime 10～40%; Dihydrate gypsum 5～10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92114008 CN1088186A (en) | 1992-12-16 | 1992-12-16 | The preparation method of white cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92114008 CN1088186A (en) | 1992-12-16 | 1992-12-16 | The preparation method of white cement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1088186A true CN1088186A (en) | 1994-06-22 |
Family
ID=4946728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92114008 Pending CN1088186A (en) | 1992-12-16 | 1992-12-16 | The preparation method of white cement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1088186A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249575A (en) * | 2011-05-09 | 2011-11-23 | 白银有色集团股份有限公司 | Application of waste tailing silicon powder from beneficiation as raw material for preparing portland cement |
| CN102276173A (en) * | 2010-06-11 | 2011-12-14 | 鞍山钢铁集团公司 | White cement and production method thereof |
| CN101549966B (en) * | 2008-04-03 | 2012-05-16 | 祁高标 | High white cement |
| CN108840583A (en) * | 2018-09-03 | 2018-11-20 | 东源辉科建材发展有限公司 | A kind of formula and preparation process of white cement |
-
1992
- 1992-12-16 CN CN 92114008 patent/CN1088186A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101549966B (en) * | 2008-04-03 | 2012-05-16 | 祁高标 | High white cement |
| CN102276173A (en) * | 2010-06-11 | 2011-12-14 | 鞍山钢铁集团公司 | White cement and production method thereof |
| CN102249575A (en) * | 2011-05-09 | 2011-11-23 | 白银有色集团股份有限公司 | Application of waste tailing silicon powder from beneficiation as raw material for preparing portland cement |
| CN108840583A (en) * | 2018-09-03 | 2018-11-20 | 东源辉科建材发展有限公司 | A kind of formula and preparation process of white cement |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Beijing Building Material Science Research Institute Document name: Second notice of examination advice |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |