CN108328963A - A kind of preparation method of concrete admixture - Google Patents
A kind of preparation method of concrete admixture Download PDFInfo
- Publication number
- CN108328963A CN108328963A CN201810435409.4A CN201810435409A CN108328963A CN 108328963 A CN108328963 A CN 108328963A CN 201810435409 A CN201810435409 A CN 201810435409A CN 108328963 A CN108328963 A CN 108328963A
- Authority
- CN
- China
- Prior art keywords
- concrete
- preparation
- concrete admixture
- initiator
- stirred
- Prior art date
- 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.)
- Withdrawn
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/38—Polysaccharides or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
- C08F283/065—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals on to unsaturated polyethers, polyoxymethylenes or polyacetals
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/20—Retarders
- C04B2103/22—Set retarders
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/34—Flow improvers
Abstract
A kind of preparation method of concrete admixture, including：Step 1, it is stirred after chitosan, allyl polyethenoxy ether, single polyalkylene glycol acrylate ester, methacrylic acid, methacrylic anhydride being mixed；Step 2, it is stirred when initiator is added dropwise, reaction 1 ~ for 24 hours, obtain concrete admixture；The dosage of the initiator is the 1% ~ 2% of reactant gross mass.Preparation method provided by the invention is simple, and production cost is relatively low, and not only water-reducing rate is high for the additive produced, and can be obviously improved concrete easily isolate, excreting water phenomenon.The present invention greatly improves the workability of concrete under the collective effect of each component, can improve the mobility of concrete, prevents premature dry condensation.
Description
Technical field
Present invention relates particularly to a kind of preparation methods of concrete admixture.
Background technology
Concrete is the material that cannot lack of building, and with the development of building trade, the use of concrete is also increasingly
Frequently, concrete demand goes up year by year, and the trend that supply falls short of demand has occurred in conventional mineral admixture.With science and technology
It is constantly progressive, especially the use of additive so that concrete has obtained significant raising in performance.
Invention content
It is an object of the present invention to solve the deficiency of the existing technology and provide a kind of preparation methods of concrete admixture.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of preparation method of concrete admixture, including：
Step 1, by chitosan, allyl polyethenoxy ether, single polyalkylene glycol acrylate ester, methacrylic acid, methacrylic acid
It is stirred after acid anhydride mixing；,
Step 2, it is stirred when initiator is added dropwise, reaction 1 ~ for 24 hours, obtain concrete admixture；The dosage of the initiator
It is the 1% ~ 2% of reactant gross mass.
Further, reaction temperature is 50 DEG C ~ 70 DEG C.
In conclusion by adopting the above-described technical solution, compared with prior art, the present invention having the advantage that：
Preparation method provided by the invention is simple, and production cost is relatively low, and not only water-reducing rate is high for the additive produced, and can be bright
It is aobvious improve concrete easily isolate, excreting water phenomenon.The present invention under the collective effect of each component, greatly improve concrete and easy
Property, the mobility of concrete can be improved, premature dry condensation is prevented.
Specific implementation mode
The specific implementation mode of the present invention is further described in detail below.
A kind of preparation method of concrete admixture of the present invention, including：
Step 1, by chitosan, allyl polyethenoxy ether, single polyalkylene glycol acrylate ester, methacrylic acid, methacrylic acid
It is stirred after acid anhydride mixing；
Step 2, it is stirred when initiator is added dropwise, reaction 1 ~ for 24 hours, obtain concrete admixture；The dosage of the initiator
It is the 1% ~ 2% of reactant gross mass；Reaction temperature is 50 DEG C ~ 70 DEG C.
Preparation method provided by the invention is simple, and production cost is relatively low, and not only water-reducing rate is high for the additive produced, and energy
Enough be obviously improved concrete easily isolate, excreting water phenomenon.The present invention greatly improves the sum of concrete under the collective effect of each component
Yi Xing can improve the mobility of concrete, prevent premature dry condensation.
Embodiment described above is merely to illustrate the technological thought and feature of the present invention, in the art its object is to make
Technical staff can understand the content of the present invention and implement it accordingly, cannot only with the present embodiment come limit the present invention patent model
It encloses, i.e., it is all according to same changes or modifications made by disclosed spirit, it still falls in the scope of the claims of the present invention.
Claims (2)
1. a kind of preparation method of concrete admixture, which is characterized in that including：
Step 1, by chitosan, allyl polyethenoxy ether, single polyalkylene glycol acrylate ester, methacrylic acid, methacrylic acid
It is stirred after acid anhydride mixing；,
Step 2, it is stirred when initiator is added dropwise, reaction 1 ~ for 24 hours, obtain concrete admixture；The dosage of the initiator
It is the 1% ~ 2% of reactant gross mass.
2. a kind of preparation method of concrete admixture according to claim 1, which is characterized in that reaction temperature 50
℃~70 ℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810435409.4A CN108328963A (en) | 2018-05-09 | 2018-05-09 | A kind of preparation method of concrete admixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810435409.4A CN108328963A (en) | 2018-05-09 | 2018-05-09 | A kind of preparation method of concrete admixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108328963A true CN108328963A (en) | 2018-07-27 |
Family
ID=62934634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810435409.4A Withdrawn CN108328963A (en) | 2018-05-09 | 2018-05-09 | A kind of preparation method of concrete admixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108328963A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114853950A (en) * | 2022-05-17 | 2022-08-05 | 江苏省交通工程建设局 | Early strength type additive for steam-curing-free precast concrete member and preparation method thereof |
-
2018
- 2018-05-09 CN CN201810435409.4A patent/CN108328963A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114853950A (en) * | 2022-05-17 | 2022-08-05 | 江苏省交通工程建设局 | Early strength type additive for steam-curing-free precast concrete member and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180727 |