CN105347721A - Retarding water reducing agent - Google Patents
Retarding water reducing agent Download PDFInfo
- Publication number
- CN105347721A CN105347721A CN201410411729.8A CN201410411729A CN105347721A CN 105347721 A CN105347721 A CN 105347721A CN 201410411729 A CN201410411729 A CN 201410411729A CN 105347721 A CN105347721 A CN 105347721A
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- China
- Prior art keywords
- reducing agent
- water reducing
- concrete
- retarder
- water reducer
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention belongs to the technical field of water reducing agents, and particularly relates to a concrete retarding water reducing agent, which comprises a water reducing agent, a retarder and a reducing agent, wherein a weight ratio of the water reducing agent o the retarder is 9:1-7:3, the reducing agent accounts for 0.01-0.04% of the total weight of the water reducing agent and the retarder, the water reducing agent is a naphthalene sulfonic acid formaldehyde condensation water reducing agent, the reducing agent is SRA-3, and the retarder is one or a plurality of materials selected from ferrous sulfate, sodium fluorosilicate, ferrous carbonate, cellulose ether and cadmium sulfate. According to the present invention, with the efficient retarding water reducing agent, the cement particles can be dispersed, the workability of concrete can be improved, the water consumption per unit can be reduced, the strength of concrete can be increased, the durability of concrete can be improved, the cement consumption per unit can be reduced, and the concrete cost can be reduced; and the product has effects of concrete setting time delaying, early strength, water reducing 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 admixture be of wide application in concrete admixture, and it is the admixture having slow setting concurrently and significantly reduce mixing water content.With fundamental construction development, more and higher requirement is proposed to concrete performance.
High performance Water-reducing Admixtures To Cements has high dissemination, can keep concrete bright degree of falling preferably.Infiltrating this kind of admixture can make concrete have high-performance, can obtain high-strength high-performance concrete.
Existing retardation water reducing agent forms the film of one deck indissoluble in cement particle surface difficulty, play barrier action to the aquation difficulty of cement, hinder the normal hydrated of cement, these all can cause the hydration rate of cement to be accelerated, or delayed coagulation is not obvious, shorten cement normal time of coagulation.Therefore, develop a kind of concrete retarding water reducer and there is great production practice and realistic meaning.
Summary of the invention
The object of the invention is to solve above-mentioned technical problem and a kind of concrete retarding water reducer is provided.
The present invention is achieved in that a kind of concrete retarding water reducer, comprises water reducer, retardant and economization agent; Described water reducer, retardant weight ratio are 9: 1-7: 3: described economization agent accounts for described water reducer, the total weight percent of retardant is 0.01-0.04%, and described water reducer is naphthalenesulfonateformaldehyde formaldehyde condensation water reducing agent, and described economization agent is SRA-3; Described retardant be ferrous sulfate, Sodium Silicofluoride, iron protocarbonate, ether of cellulose, Cadmium Sulphate one or more.
Concrete retarding water reducer of the present invention can make cement particle disperse, and improves concrete workability: can reduce unit consumption of water, and concrete strength is increased, and improves concrete weather resistance: 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, the feature of Be very effective.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.
Embodiment
Below, in conjunction with example, substantive distinguishing features of the present invention and advantage are further described, but the present invention is not limited to listed embodiment.
A kind of concrete retarding water reducer, comprises water reducer, retardant and economization agent; Described water reducer, retardant weight ratio are 9: 1-7: 3: described economization agent accounts for described water reducer, the total weight percent of retardant is 0.01-0.04%, and described water reducer is naphthalenesulfonateformaldehyde formaldehyde condensation water reducing agent, and described economization agent is SRA-3; Described retardant be ferrous sulfate, Sodium Silicofluoride, iron protocarbonate, ether of cellulose, Cadmium Sulphate one or more.
Embodiment one
Select 60 weight part naphthalenesulfonateformaldehyde formaldehyde condensation water reducing agents, 40 parts by weight of ferrous sulfate, 0.01 weight part economization agent SRA-3, above-mentioned raw materials is stirred.
Embodiment two
Select 75 weight part naphthalenesulfonateformaldehyde formaldehyde condensation water reducing agents, 25 weight part Sodium Silicofluorides, 0.01 weight part economization agent SRA-3, above-mentioned raw materials is stirred.
Embodiment three
Select 72 weight part naphthalenesulfonateformaldehyde formaldehyde condensation water reducing agents, 28 weight part iron protocarbonates, 0.02 weight part economization agent SRA-3, above-mentioned raw materials is stirred.
Embodiment four
Select 80 weight part naphthalenesulfonateformaldehyde formaldehyde condensation water reducing agents, 20 part by weight of cellulose ethers, 0.03 weight part economization agent SRA-3, above-mentioned raw materials is stirred.
Embodiment five
Select 90 weight part naphthalenesulfonateformaldehyde formaldehyde condensation water reducing agents, 10 parts sulfuric acid cadmiums, 0.04 weight part economization agent SRA-3, above-mentioned raw materials is stirred.
Claims (1)
1. a concrete retarding water reducer, is characterized in that, comprises water reducer, retardant and economization agent; Described water reducer, retardant weight ratio are 9: 1-7: 3; Described economization agent accounts for described water reducer, the total weight percent of retardant is 0.01-0.04%, and described water reducer is naphthalenesulfonateformaldehyde formaldehyde condensation water reducing agent, and described economization agent is SRA-3; Described retardant be ferrous sulfate, Sodium Silicofluoride, iron protocarbonate, ether of cellulose, Cadmium Sulphate one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410411729.8A CN105347721A (en) | 2014-08-18 | 2014-08-18 | Retarding water reducing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410411729.8A CN105347721A (en) | 2014-08-18 | 2014-08-18 | Retarding water reducing agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105347721A true CN105347721A (en) | 2016-02-24 |
Family
ID=55323816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410411729.8A Pending CN105347721A (en) | 2014-08-18 | 2014-08-18 | Retarding water reducing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105347721A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107935446A (en) * | 2017-11-30 | 2018-04-20 | 苏州望意阳环保科技有限公司 | A kind of inorganic retarder and its manufacture craft |
| 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 CN201410411729.8A patent/CN105347721A/en active Pending
Cited By (2)
| 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 |
| CN107935446A (en) * | 2017-11-30 | 2018-04-20 | 苏州望意阳环保科技有限公司 | A kind of inorganic retarder and its manufacture craft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160224 |