CN104556796A - Chloride-free cement grinding aid - Google Patents
Chloride-free cement grinding aid Download PDFInfo
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- CN104556796A CN104556796A CN201410812847.XA CN201410812847A CN104556796A CN 104556796 A CN104556796 A CN 104556796A CN 201410812847 A CN201410812847 A CN 201410812847A CN 104556796 A CN104556796 A CN 104556796A
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- cement grinding
- cement
- chloride
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Abstract
The invention discloses a chloride-free cement grinding aid and belongs to the technical field of building materials. The chloride-free cement grinding aid comprises the following components in parts by weight: 5-8 parts of quick lime, 5-6 parts of diethanolisopropanolamine, 10-15 parts of anhydrous sodium sulfate, 1-2parts of polyethylene glycol, 1-5 parts of triisopropanolamine, 2-5 parts of polycarboxylate, 0.5-1.3 parts of sodium gluconate, 6-12 parts of coal ash and 0.5-1.8 parts of urea. The cement grinding aid is good in stability, has good consistency with cement and has the advantages of improving the fluidity of the cement in the using process, effectively preventing the steel bars in the concrete from being corroded and not causing crack to the concrete after the setting.
Description
Technical field
The present invention relates to building material technical field, be specifically related to a kind of non-chlorate cement grinding aid.
Background technology
Cement grinding aid is a kind of chemical additive improving cement grinding effect and performance, can significantly improve cement unit-hour output, each length of time strength of cement, improve its mobility.Cement grinding aid significantly can reduce the electrostatic adhesion bag ball phenomenon formed in grinding process, and can reduce the again coalescent trend of the ultra-fine grain formed in grinding process.But conventional cement grinding aid is due to containing higher villaumite composition, easily causes the steel bar corrosion in concrete, affects concrete work-ing life.In addition often bad with the consistency of cement in conventional cement grinding aids use procedure, affect the mobility of cement, and easily occur slight crack after theing cement solidifies.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of non-chlorate cement grinding aid, and this grinding aid solves existing chlorinated water cement grinding aids and easily causes steel bar corrosion in concrete, affects the problems such as concrete work-ing life.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of non-chlorate cement grinding aid, it comprises the component of following weight part: unslaked lime 5-8 part, di-alcohol monoisopropanolamine 5-6 part, Sodium sulfate anhydrous.min(99) 10-15 part, polyoxyethylene glycol 1-2 part, tri-isopropanolamine 1-5 part, polycarboxylate 2-5 part, Sunmorl N 60S 0.5-1.3 part, flyash 6-12 part, urea 0.5-1.8 part.
Further, a kind of non-chlorate cement grinding aid, it comprises the component of following weight part: unslaked lime 7 parts, di-alcohol monoisopropanolamine 5 parts, Sodium sulfate anhydrous.min(99) 12 parts, polyoxyethylene glycol 1.5 parts, tri-isopropanolamine 3 parts, polycarboxylate 4 parts, Sunmorl N 60S 0.9 part, 8 parts, flyash, 1.2 parts, urea.
Further, described polycarboxylate is poly carboxylic acid sodium.
The invention has the beneficial effects as follows: this cement grinding aid good stability, has good consistency with cement, improve good fluidity in cement use procedure, effectively prevent the steel bar corrosion in concrete, and there will not be slight crack after concrete setting.
Embodiment
Below in conjunction with concrete implementation column, the present invention is set forth further, but do not limit the present invention.
Embodiment 1
A preparation method for modified carboxylic acid cement grinding aid, comprises the following steps:
A kind of non-chlorate cement grinding aid, it comprises the component of following weight part: unslaked lime 8 parts, di-alcohol monoisopropanolamine 6 parts, Sodium sulfate anhydrous.min(99) 15 parts, polyoxyethylene glycol 2 parts, tri-isopropanolamine 5 parts, polycarboxylate 5 parts, Sunmorl N 60S 1.3 parts, 12 parts, flyash, 1.8 parts, urea.
Further, described polycarboxylate is poly carboxylic acid sodium.
Embodiment 2
A kind of non-chlorate cement grinding aid, it comprises the component of following weight part: unslaked lime 5 parts, di-alcohol monoisopropanolamine 5 parts, Sodium sulfate anhydrous.min(99) 10 parts, polyoxyethylene glycol 1 part, tri-isopropanolamine 5 parts, polycarboxylate 2 parts, Sunmorl N 60S 1.3 parts, 6 parts, flyash, 0.5 part, urea.
Described polycarboxylate is poly carboxylic acid sodium.
Embodiment 3
A kind of non-chlorate cement grinding aid, it comprises the component of following weight part: unslaked lime 7 parts, di-alcohol monoisopropanolamine 5 parts, Sodium sulfate anhydrous.min(99) 12 parts, polyoxyethylene glycol 1.5 parts, tri-isopropanolamine 3 parts, polycarboxylate 4 parts, Sunmorl N 60S 0.9 part, 8 parts, flyash, 1.2 parts, urea.
Further, described polycarboxylate is poly carboxylic acid sodium.
Claims (3)
1. a non-chlorate cement grinding aid, it is characterized in that, it comprises the component of following weight part: unslaked lime 5-8 part, di-alcohol monoisopropanolamine 5-6 part, Sodium sulfate anhydrous.min(99) 10-15 part, polyoxyethylene glycol 1-2 part, tri-isopropanolamine 1-5 part, polycarboxylate 2-5 part, Sunmorl N 60S 0.5-1.3 part, flyash 6-12 part, urea 0.5-1.8 part.
2. non-chlorate cement grinding aid according to claim 1, it is characterized in that, a kind of non-chlorate cement grinding aid, it comprises the component of following weight part: unslaked lime 7 parts, di-alcohol monoisopropanolamine 5 parts, Sodium sulfate anhydrous.min(99) 12 parts, polyoxyethylene glycol 1.5 parts, tri-isopropanolamine 3 parts, polycarboxylate 4 parts, Sunmorl N 60S 0.9 part, 8 parts, flyash, 1.2 parts, urea.
3. non-chlorate cement grinding aid according to claim 1 and 2, is characterized in that, described polycarboxylate is poly carboxylic acid sodium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410812847.XA CN104556796A (en) | 2014-12-24 | 2014-12-24 | Chloride-free cement grinding aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410812847.XA CN104556796A (en) | 2014-12-24 | 2014-12-24 | Chloride-free cement grinding aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104556796A true CN104556796A (en) | 2015-04-29 |
Family
ID=53073985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410812847.XA Pending CN104556796A (en) | 2014-12-24 | 2014-12-24 | Chloride-free cement grinding aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104556796A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105130254A (en) * | 2015-09-18 | 2015-12-09 | 广西路佳道桥勘察设计有限公司 | Efficient cement grinding aid and cement containing same |
| CN106242354A (en) * | 2016-08-25 | 2016-12-21 | 北海金匠水泥制品有限责任公司 | A kind of high-efficiency concrete grinding aid |
| CN112047658A (en) * | 2020-09-14 | 2020-12-08 | 株洲宏信科技发展有限公司 | Cement grinding aid, preparation method thereof and application thereof in interior decoration cement |
-
2014
- 2014-12-24 CN CN201410812847.XA patent/CN104556796A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105130254A (en) * | 2015-09-18 | 2015-12-09 | 广西路佳道桥勘察设计有限公司 | Efficient cement grinding aid and cement containing same |
| CN106242354A (en) * | 2016-08-25 | 2016-12-21 | 北海金匠水泥制品有限责任公司 | A kind of high-efficiency concrete grinding aid |
| CN112047658A (en) * | 2020-09-14 | 2020-12-08 | 株洲宏信科技发展有限公司 | Cement grinding aid, preparation method thereof and application thereof in interior decoration cement |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |
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| WD01 | Invention patent application deemed withdrawn after publication |