CN105712648A - Concrete high-efficiency slow setting water reducing agent - Google Patents
Concrete high-efficiency slow setting water reducing agent Download PDFInfo
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- CN105712648A CN105712648A CN201410411795.5A CN201410411795A CN105712648A CN 105712648 A CN105712648 A CN 105712648A CN 201410411795 A CN201410411795 A CN 201410411795A CN 105712648 A CN105712648 A CN 105712648A
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- reducing agent
- concrete
- water
- retarder
- water reducer
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to the technical field of a water reducer, and concretely relates to a concrete high-efficiency slow setting water reducing agent comprising a water reducer, a retarder and a shrinkage reducing agent. a weight ratio of the water reducer and the slow setting water reducing agent is 9:1-6:4, and the weight percentage of the shrinkage reducing agent accounts for 0.01-0.03% of gross weight percentage of the water reducer and the retarder, and the water reducer is the naphthalene sulfonic acid-formaldehyde water reducer, and the shrinkage reducing agent is SRA-4; and the retarder is one or more from ferrous sulphate, sodium fluosilicate, ferrous carbonate, cellulose ether, and cadmium sulfate. The high-efficiency slow setting high-efficiency water reducing agent is capable of dispersing the cement particles; improving the workability of the concrete, reducing the water usage amount per unit, enhancing the concrete intensity and increasing the endurance of the concrete; reducing the cement usage amount per unit, and reducing the cost of the concrete. The product has the effects of delay of the coagulation time of the concrete, high early strength, and water reduction.
Description
Technical field
The invention belongs to retardation water reducing agent technical field, be specifically related to a kind of concrete high-efficiency retardation water reducing agent.
Background technology
Efficient retarding and water reducing agent is a kind of additive being of wide application in concrete admixture, and it is to have slow setting concurrently and the additive of mixing water amount is greatly reduced.With capital construction development, concrete performance is proposed more and higher requirement.
High performance Water-reducing Admixtures To Cements has high peptizaiton, can keep concrete bright degree of falling preferably.Penetrating into this kind of additive can make concrete have high-performance, it is possible to obtain high-strength high-performance concrete.
Existing retardation water reducing agent forms the thin film of one layer of indissoluble in cement particle surface difficulty, the aquation difficulty of cement being risen barrier action, hinders the normal hydrated of cement, these all can cause that the hydration rate of cement is accelerated, or deferred action is inconspicuous, shorten cement normal setting time.Therefore, develop a kind of concrete high-efficiency retardation water reducing agent and there is great production practices and realistic meaning.
Summary of the invention
It is an object of the invention to solve above-mentioned technical problem and a kind of concrete high-efficiency retardation water reducing agent is provided.
The present invention is achieved in that a kind of concrete high-efficiency retardation water reducing agent, includes water reducer, retarder and economization agent；Described water reducer, retarder weight ratio are 9: 1-6: 4, described economization agent accounts for described water reducer, the total weight percent of retarder is 0.01-0.03%, and described water reducer is naphthalenesulfonateformaldehyde formaldehyde condensation water reducing agent, described economization agent is SRA-4；Described retarder is zinc salt retarder.
Described zinc salt retarder include zinc chloride, zinc sulfate, zinc carbonate, zinc nitrate one or more.
Concrete high-efficiency retardation water reducing agent of the present invention can make cement particle disperse, and improves concrete workability: can reduce unit consumption of water, makes concrete strength increase, and improves concrete durability: can reduce unit cement consumption, reduces Cost of Concrete.
Product of the present invention has effects such as delaying concrete coagulating time, early strong, diminishing.
Product of the present invention uses in concrete that to have volume low, effect outstanding feature.Efficient retarding and water reducing agent cost of the present invention is low, and diminishing, retarding effect are good, has good economic benefit and social benefit.
Detailed description of the invention
Below, it is further described in conjunction with the example substantive distinguishing features to the present invention and advantage, but the invention is not limited in listed embodiment.
A kind of concrete high-efficiency retardation water reducing agent, include water reducer, retarder and economization agent；Described water reducer, retarder weight ratio are 9: 1-6: 4, described economization agent accounts for described water reducer, the total weight percent of retarder is 0.01-0.03%, and described water reducer is naphthalenesulfonateformaldehyde formaldehyde condensation water reducing agent, described economization agent is SRA-4；Described retarder is zinc salt retarder.
Described zinc salt retarder include zinc chloride, zinc sulfate, zinc carbonate, zinc nitrate one or more.
Embodiment one
Select 60 weight portion naphthalenesulfonateformaldehyde formaldehyde condensation water reducing agents, 40 weight portion zinc chloride, 0.01 weight portion economization agent SRA-4, above-mentioned raw materials is stirred.
Embodiment two
Select 75 weight portion naphthalenesulfonateformaldehyde formaldehyde condensation water reducing agents, 25 parts sulfuric acid zinc, 0.01 weight portion economization agent SRA-4, above-mentioned raw materials is stirred.
Embodiment three
Select 72 weight portion naphthalenesulfonateformaldehyde formaldehyde condensation water reducing agents, 28 weight portion zinc carbonates, 0.02 weight portion economization agent SRA-4, above-mentioned raw materials is stirred.
Embodiment four
Select 80 weight portion naphthalenesulfonateformaldehyde formaldehyde condensation water reducing agents, 20 weight portion zinc nitrates, 0.02 weight portion economization agent SRA-4, above-mentioned raw materials is stirred.
Embodiment five
Select 90 weight portion naphthalenesulfonateformaldehyde formaldehyde condensation water reducing agents, 10 weight portion zinc carbonates, 0.03 weight portion economization agent SRA-4, above-mentioned raw materials is stirred.
Claims (2)
1. a concrete high-efficiency retardation water reducing agent, it is characterized in that, including water reducer, retarder and economization agent；Described water reducer, retarder weight ratio are 9: 1-6: 4, described economization agent accounts for described water reducer, the total weight percent of retarder is 0.01-0.03%, and described water reducer is naphthalenesulfonateformaldehyde formaldehyde condensation water reducing agent, described economization agent is SRA-4；Described retarder is zinc salt retarder.
2. concrete high-efficiency retardation water reducing agent according to claim 1, it is characterized in that, described zinc salt retarder include zinc chloride, zinc sulfate, zinc carbonate, zinc nitrate one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410411795.5A CN105712648A (en) | 2014-08-18 | 2014-08-18 | Concrete high-efficiency slow setting water reducing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410411795.5A CN105712648A (en) | 2014-08-18 | 2014-08-18 | Concrete high-efficiency slow setting water reducing agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105712648A true CN105712648A (en) | 2016-06-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410411795.5A Pending CN105712648A (en) | 2014-08-18 | 2014-08-18 | Concrete high-efficiency slow setting water reducing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105712648A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106396450A (en) * | 2016-09-30 | 2017-02-15 | 沈阳建筑大学 | Inorganic mineral polymer retarder and preparation method thereof |
| WO2018196017A1 (en) * | 2017-04-27 | 2018-11-01 | 陈凯 | High-efficiency retarding water reducer for concrete and preparation method therefor |
-
2014
- 2014-08-18 CN CN201410411795.5A patent/CN105712648A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106396450A (en) * | 2016-09-30 | 2017-02-15 | 沈阳建筑大学 | Inorganic mineral polymer retarder and preparation method thereof |
| CN106396450B (en) * | 2016-09-30 | 2018-06-29 | 沈阳建筑大学 | A kind of geopolymer retarder and preparation method thereof |
| WO2018196017A1 (en) * | 2017-04-27 | 2018-11-01 | 陈凯 | High-efficiency retarding water reducer for concrete and preparation method therefor |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160629 |
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| WD01 | Invention patent application deemed withdrawn after publication |