CN105399388A - Fast-drying and rapid-hardening cement - Google Patents
Fast-drying and rapid-hardening cement Download PDFInfo
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- CN105399388A CN105399388A CN201410468236.8A CN201410468236A CN105399388A CN 105399388 A CN105399388 A CN 105399388A CN 201410468236 A CN201410468236 A CN 201410468236A CN 105399388 A CN105399388 A CN 105399388A
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Abstract
The present invention discloses a fast-drying and rapid-hardening cement, which is characterized by comprising, by weight, 40-50% of a cement clinker, 10-20% of anhydrous gypsum, 12-15% of coal gangue, 5-10% of coal ash residue, 2-3% of iron powder, less than or equal to 2% of aluminum powder, 2-5% of calcium sulfate, and 2-5% of a cement setting accelerator. The fast-drying and rapid-hardening cement of the present invention has characteristics of fast drying setting, short hardening molding cycle, and no original strength level reducing.
Description
Technical field
The invention belongs to technical field of cement production, relate to a kind of quick-drying cement fondu.
Background technology
Cement is the common used material of each department modernization construction such as city and rural area, important building materials primitive.Speed with work Process of Urbanization Construction is accelerated, the rapid progress of mankind's modernization.Nowadays shorter to the construction period of each building construction, rate request is faster, and in order to deal with this social development, the shortcoming that the solidification cycle of Portland cement is long makes to satisfy the demand.
Summary of the invention
For above-described traditional shortcoming, the invention provides a kind of quick-drying cement fondu.
For solving the problems of the technologies described above, quick-drying cement fondu of the present invention consists of the following composition, by weight percentage, and cement clinker 40% ~ 50%; Dehydrated gyp-10% ~ 20%; Coal gangue 12% ~ 15%; Coal ash 5% ~ 10%; Iron powder 2% ~ 3%; Aluminium powder≤2%; Calcium sulfate 2 ~ 5%; Cement hardener 2 ~ 5%.
The composition of described cement hardener comprises: sodium aluminate, sodium carbonate, sodium sulfate.
Described cement clinker can be bought by building materials market and obtain.
As a further improvement on the present invention, described quick-drying cement fondu, by weight percentage, has following one-tenth to be grouped into, cement clinker 45%; Dehydrated gyp-18%; Coal gangue 15%; Coal ash 9.5%; Iron powder 2.6%; Aluminium powder 1.2%; Calcium sulfate 3.7%; Cement hardener: 5%.
Advantage of the present invention has: utilize reasonable component proportioning, add appropriate cement hardener, tested by accurate science, make when keeping original Strength Changes little, more traditional Portland cement solidification cycle of average 2 ~ 3 days shortens to < 36 hours, is essentially 50% of the equivalent cement rapid-curing cutback time.
Embodiment
Below in conjunction with specific embodiment, the present invention is further illustrated, please notes: embodiment is just supplemented of the present invention, is not limitation of the present invention.
Embodiment 1
Get cement clinker 45% by weight percentage; Dehydrated gyp-18%; Coal gangue 15%; Coal ash 9.5%; Iron powder 2.6%; Aluminium powder 1.2%; Calcium sulfate 3.7%; Cement hardener: 5%.
Mixture Density Networks spoil, coal ash, iron powder, aluminium powder, calcium sulfate, then through 500 DEG C of high-temperature calcinations, be cooled to normal temperature afterwards, add cement clinker, dehydrated gyp-, pulverizes.Last homogenizing stirs, and packs.
Embodiment 2
Get cement clinker 50% by weight percentage; Dehydrated gyp-20%; Coal gangue 15%; Coal ash 8%; Iron powder 2.5%; Calcium sulfate 2.5%; Cement hardener: 2%.
Mixture Density Networks spoil, coal ash, iron powder, calcium sulfate, then through 500 DEG C of high-temperature calcinations, be cooled to normal temperature afterwards, add cement clinker, dehydrated gyp-, pulverizes.Last homogenizing stirs, and packs.
Claims (5)
1. a quick-drying cement fondu, is characterized in that, moiety is by weight percentage: cement clinker 40% ~ 50%; Dehydrated gyp-10% ~ 20%; Coal gangue 12% ~ 15%; Coal ash 5% ~ 10%; Iron powder 2% ~ 3%; Aluminium powder≤2%; Calcium sulfate 2 ~ 5%; Cement hardener 2 ~ 5%.
2. quick-drying cement fondu according to claim 1, is characterized in that, by weight percentage, comprises following composition: cement clinker 45%; Dehydrated gyp-18%; Coal gangue 15%; Coal ash 9.5%; Iron powder 2.6%; Aluminium powder 1.2%; Calcium sulfate 3.7%; Cement hardener: 5%.
3. quick-drying cement fondu according to claim 1, is characterized in that described cement clinker can be bought by building materials market and obtains.
4. quick-drying cement fondu according to claim 1, is characterized in that consisting of of described cement hardener: sodium aluminate, sodium carbonate, sodium sulfate.
5. cement hardener composition according to claim 4, existing cement hardener common on the market all meets the requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410468236.8A CN105399388A (en) | 2014-09-15 | 2014-09-15 | Fast-drying and rapid-hardening cement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410468236.8A CN105399388A (en) | 2014-09-15 | 2014-09-15 | Fast-drying and rapid-hardening cement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105399388A true CN105399388A (en) | 2016-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410468236.8A Pending CN105399388A (en) | 2014-09-15 | 2014-09-15 | Fast-drying and rapid-hardening cement |
Country Status (1)
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| CN (1) | CN105399388A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111875270A (en) * | 2020-08-13 | 2020-11-03 | 东莞市超逸建材有限公司 | Single-component quick-drying quick-hardening cement |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050239924A1 (en) * | 2002-03-27 | 2005-10-27 | Lettkeman Dennis M | High molecular weight additives for calcined gypsum and cementitious compositions |
| CN1749194A (en) * | 2005-07-11 | 2006-03-22 | 孙振宏 | Environment friendly energy saving slag cement producing technology without baking |
| CN102557561A (en) * | 2011-11-23 | 2012-07-11 | 淄博乾耀固结材料有限公司 | High-performance sand-soil consolidation material, as well as preparation method and using method thereof |
| CN104250071A (en) * | 2013-06-25 | 2014-12-31 | 辽宁集佳节能墙体装备有限公司 | Chemical foamed concrete and preparation method thereof |
-
2014
- 2014-09-15 CN CN201410468236.8A patent/CN105399388A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050239924A1 (en) * | 2002-03-27 | 2005-10-27 | Lettkeman Dennis M | High molecular weight additives for calcined gypsum and cementitious compositions |
| CN1749194A (en) * | 2005-07-11 | 2006-03-22 | 孙振宏 | Environment friendly energy saving slag cement producing technology without baking |
| CN102557561A (en) * | 2011-11-23 | 2012-07-11 | 淄博乾耀固结材料有限公司 | High-performance sand-soil consolidation material, as well as preparation method and using method thereof |
| CN104250071A (en) * | 2013-06-25 | 2014-12-31 | 辽宁集佳节能墙体装备有限公司 | Chemical foamed concrete and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 宋少民等: "《混凝土学》", 31 December 2013, 武汉理工大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111875270A (en) * | 2020-08-13 | 2020-11-03 | 东莞市超逸建材有限公司 | Single-component quick-drying quick-hardening cement |
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Application publication date: 20160316 |
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| WD01 | Invention patent application deemed withdrawn after publication |