CN104761177A - Cement air entraining agent - Google Patents
Cement air entraining agent Download PDFInfo
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- CN104761177A CN104761177A CN201510120365.2A CN201510120365A CN104761177A CN 104761177 A CN104761177 A CN 104761177A CN 201510120365 A CN201510120365 A CN 201510120365A CN 104761177 A CN104761177 A CN 104761177A
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- CN
- China
- Prior art keywords
- air entraining
- entraining agent
- cement
- entrapment agent
- air entrapment
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Abstract
The invention discloses a cement air entraining agent which includes following raw materials, by weight: 10-20 parts of rosin, 2-5 parts of salicylic acid, 0.1-0.3 parts of sulfuric acid and 1-3 parts of potassium permanganate, and is prepared through a reaction in water medium at 60-90 DEG C. Compared with a rosin-type air entraining agent in the prior art, the air entraining agent is significantly improved in air entraining amount and stability.
Description
Technical field
Cement additive field of the present invention, is specifically related to a kind of cement air entrapment agent.
Background technology
Air entrapment agent is a kind of admixture being mainly used in improving concrete antifreezing performance, and general volume is the 0.002%-0.01% of cement weight.Abietate is the most widely used domestic air entrapment agent, be by rosin and PHENOL 99.8 MIN ((CARBOLIC ACID)), sulfuric acid polyreaction at a certain temperature by a certain percentage, then become sodium salt to obtain by sodium-hydroxide treatment, but its bleed and foam stabilizing effect is not good.
Summary of the invention
The technical problem to be solved in the present invention overcomes existing defect, provides a kind of cement air entrapment agent of improvement.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
A kind of cement air entrapment agent, by raw material weight, this air entrapment agent is obtained by reacting in 60-90 DEG C in water medium by 10-20 part rosin, 2-5 part Whitfield's ointment, 0.1-0.3 part sulfuric acid and 1-3 part potassium permanganate.Reaction times controls at 20-60 minute.
Embodiment
Below the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
embodiment 1
By 2kg Whitfield's ointment, 0.2kg sulfuric acid (98%H
2sO
4) and 1kg potassium permanganate add in the water of 50kg, be heated to 60 DEG C, more slowly add 10kg rosin, stirring reaction 30 minutes, cooling, the cement air entrapment agent namely obtained.
embodiment 2
By 5kg Whitfield's ointment, 0.3kg sulfuric acid (98%H
2sO
4) and 3kg potassium permanganate add in the water of 50kg, be heated to 90 DEG C, more slowly add 20kg rosin, stirring reaction 40 minutes, cooling, the cement air entrapment agent namely obtained.
Carry out air content test by GB/T50080-2002, air entrapment agent volume of the present invention is by 0.005% of cement weight, and initial air content is that after 7%, 1 hour, air content is 6.8%.
Compared with existing rosin based air entrapment agent, air entrapment agent of the present invention has more excellent amount of air entrainment, and stable also better (after 1 hour, air content still can keep (more than 95%).
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. a cement air entrapment agent, by raw material weight, described air entrapment agent is obtained by reacting in 60-90 DEG C in water medium by 10-20 part rosin, 2-5 part Whitfield's ointment, 0.1-0.3 part sulfuric acid and 1-3 part potassium permanganate.
2. cement air entrapment agent according to claim 1, it is characterized in that, the reaction times is 20-60 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510120365.2A CN104761177A (en) | 2015-03-19 | 2015-03-19 | Cement air entraining agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510120365.2A CN104761177A (en) | 2015-03-19 | 2015-03-19 | Cement air entraining agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104761177A true CN104761177A (en) | 2015-07-08 |
Family
ID=53643343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510120365.2A Pending CN104761177A (en) | 2015-03-19 | 2015-03-19 | Cement air entraining agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104761177A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036598A (en) * | 2015-07-27 | 2015-11-11 | 昆山市建国混凝土制品有限公司 | Efficient concrete water reducing agent and concrete |
| CN106116220A (en) * | 2016-06-24 | 2016-11-16 | 桂林华越环保科技有限公司 | Concrete air-entrainer |
-
2015
- 2015-03-19 CN CN201510120365.2A patent/CN104761177A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105036598A (en) * | 2015-07-27 | 2015-11-11 | 昆山市建国混凝土制品有限公司 | Efficient concrete water reducing agent and concrete |
| CN106116220A (en) * | 2016-06-24 | 2016-11-16 | 桂林华越环保科技有限公司 | Concrete air-entrainer |
| CN106116220B (en) * | 2016-06-24 | 2018-04-10 | 桂林华越环保科技有限公司 | Concrete air-entrainer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150708 |
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| RJ01 | Rejection of invention patent application after publication |