CN105645816A - Setting-retarding water reducing agent - Google Patents
Setting-retarding water reducing agent Download PDFInfo
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- CN105645816A CN105645816A CN201410411726.4A CN201410411726A CN105645816A CN 105645816 A CN105645816 A CN 105645816A CN 201410411726 A CN201410411726 A CN 201410411726A CN 105645816 A CN105645816 A CN 105645816A
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- China
- Prior art keywords
- reducing agent
- water
- concrete
- retarder
- setting
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to the technical field of water reducing agents and particularly relates to an efficient concrete setting-retarding water reducing agent. The setting-retarding water reducing agent comprises a water reducer, a setting retarder and a shrinkage reducing agent, wherein the weight ratio of the water reducer to the setting retarder is (9: 1) to (6: 4), the content of the shrinkage reducing agent is 0.01-0.03% of the total weight percent of the water reducer and the setting retarder, the water reducer is a naphthalene series water reducer, and the shrinkage reducing agent is SRA-3. The setting-retarding efficient water reducing agent disclosed by the invention can be used for dispersing cement particles, so as to improve the workability of concrete; the unit water consumption can be reduced, so that the strength of the concrete is improved, and the durability of the concrete is improved; and the unit cement consumption can be reduced, and thus the cost of the concrete is reduced. The product disclosed by the invention has the effects of retarding concrete setting time, early strengthening, reducing water, and the like.
Description
Technical field
The invention belongs to retardation water reducing agent technical field, be specifically related to a kind of 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 high-effective concrete 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 high-effective concrete retardation water reducing agent is provided.
The present invention is achieved in that a kind of high-effective concrete retardation water reducing agent, 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%, described water reducer is naphthalene water reducer, and described economization agent is SRA-3, and described retarder is phosphate and phosphonate retarder.
Described retarder include sodium pyrophosphate, sodium hexameta phosphate, sodium tripolyphosphate, methylene phosphonic acid, with in carbon di 2 ethylhexyl phosphonic acid one or more.
High-effective concrete retardation water reducing agent of the present invention can make cement particle disperse, improve concrete workability: unit consumption of water can be reduced, make concrete strength increase, and improve concrete durability: unit cement consumption can be reduced, reduce 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 high-effective concrete retardation water reducing agent, 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%, described water reducer is naphthalene water reducer, and described economization agent is SRA-3, and described retarder is phosphate and phosphonate retarder.
Described retarder include sodium pyrophosphate, sodium hexameta phosphate, sodium tripolyphosphate, methylene phosphonic acid, with in carbon di 2 ethylhexyl phosphonic acid one or more.
Embodiment one
Select 60 weight portion naphthalene water reducers, 40 weight portion sodium pyrophosphates, 0.01 weight portion economization agent SRA-3, above-mentioned raw materials is stirred.
Embodiment two
Select 75 weight portion naphthalene water reducers, 25 weight of apple acid, 0.01 weight portion economization agent SRA-3, above-mentioned raw materials is stirred.
Embodiment three
Select 72 weight portion naphthalene water reducers, 28 weight portions with carbon di 2 ethylhexyl phosphonic acid, 0.02 weight portion economization agent SRA-3, above-mentioned raw materials is stirred.
Embodiment four
Select 80 weight portion naphthalene water reducers, 20 weight portion methylene phosphonic acids, 0.02 weight portion economization agent SRA-3, above-mentioned raw materials is stirred.
Embodiment five
Select 90 weight portion naphthalene water reducers, 10 weight portion sodium tripolyphosphates, 0.03 weight portion economization agent SRA-3, above-mentioned raw materials is stirred.
Claims (2)
1. a high-effective concrete retardation water reducing agent, it is characterised in that 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%, described water reducer is naphthalene water reducer, and described economization agent is SRA-3, and described retarder is phosphate and phosphonate retarder.
2. high-effective concrete retardation water reducing agent according to claim 1, it is characterised in that described retarder include sodium pyrophosphate, sodium hexameta phosphate, sodium tripolyphosphate, methylene phosphonic acid, with in carbon di 2 ethylhexyl phosphonic acid one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410411726.4A CN105645816A (en) | 2014-08-18 | 2014-08-18 | Setting-retarding water reducing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410411726.4A CN105645816A (en) | 2014-08-18 | 2014-08-18 | Setting-retarding water reducing agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105645816A true CN105645816A (en) | 2016-06-08 |
Family
ID=56482240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410411726.4A Pending CN105645816A (en) | 2014-08-18 | 2014-08-18 | Setting-retarding water reducing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105645816A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 CN201410411726.4A patent/CN105645816A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160608 |
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| WD01 | Invention patent application deemed withdrawn after publication |