CN110467374A - A kind of concrete retarding water-reducing agent - Google Patents
A kind of concrete retarding water-reducing agent Download PDFInfo
- Publication number
- CN110467374A CN110467374A CN201910638536.9A CN201910638536A CN110467374A CN 110467374 A CN110467374 A CN 110467374A CN 201910638536 A CN201910638536 A CN 201910638536A CN 110467374 A CN110467374 A CN 110467374A
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- parts
- water
- concrete
- reducing agent
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Classifications
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- 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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
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- 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
- C04B2103/302—Water reducers
Abstract
The invention discloses a kind of concrete retarding water-reducing agent, the recipe ingredient includes: 45-60 parts of polycarboxylate superplasticizer mother liquor, 3-5 parts of sodium gluconate, 1-2 parts of polyoxyethylene polyoxy propyl alcohol amidogen ether, 2-4 parts of zinc sulfate, 1-3 parts of cellulose ether, 1-2 parts of colophonium pyrolytic polymer, 0.5-2 parts of trimer acid sodium, 3-6 parts of carboxymethyl cellulose, 3-5 parts of silicone oil, 3-5 parts of sulfamate, 1-2 parts of sodium citrate, 6-8 parts of slump retaining agent, 30-50 parts of water in terms of mass fraction.The concrete retarding water-reducing agent, the concrete can be made effectively to extend concrete coagulating time and effective diminishing, the space steric effect of water-reducing agent can be improved, the water retention property of cellulose ether also contributes to dispersion cement particle to improve the mobility of slurry simultaneously, concrete slump can not only be improved and concrete flowability can be improved, effectively improve the comprehensive mechanical property of concrete.
Description
Technical field
The present invention relates to water-reducing agent technical field, specially a kind of concrete retarding water-reducing agent.
Background technique
Water-reducing agent is a kind of under conditions of maintaining concrete slump to be basically unchanged, and can be reduced the coagulation of mixing water amount
Native additive, belongs to anionic surfactant mostly, there is lignosulfonates, naphthalene sulphonate formaldehyde polymer etc., is added mixed
There is peptizaiton to cement granules after solidifying soil mixture, its workability can be improved, reduce unit consumption of water, improve concrete mixing
The mobility of object, or unit cement consumption is reduced, save cement.
Retardation water reducing agent is based on a naphthalenesulfonic acid-formaldehyde condensate, then compound a variety of surface reactive materials and it is manufactured slow
The solidifying efficient amniotic fluid agent of type, is mainly shown as the advantages that water-reducing rate is high, Slump Time losing of Large is small, mobility is strong, but existing
Retardation water reducing agent is generally pursued comprehensive performance its retarding time due to it and is not grown generally, and the comprehensive mechanical property of concrete is not
It can significantly improve, thus it is proposed that a kind of concrete retarding water-reducing agent.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of concrete retarding water-reducing agents, solve existing slow setting and subtract
The problem of aqua retarding time is not grown and concrete comprehensive mechanical property cannot significantly improve.
(2) technical solution
To achieve the above object, the invention provides the following technical scheme: a kind of concrete retarding water-reducing agent, the formula group
Dividing includes: 45-60 parts of polycarboxylate superplasticizer mother liquor, 3-5 parts of sodium gluconate, polyoxyethylene polyoxy Propanolamine in terms of mass fraction
1-2 parts of ether, 2-4 parts of zinc sulfate, 1-3 parts of cellulose ether, 1-2 parts of colophonium pyrolytic polymer, 0.5-2 parts of trimer acid sodium, carboxymethyl cellulose
3-6 parts plain, 3-5 parts of silicone oil, 3-5 parts of sulfamate, 1-2 parts of sodium citrate, 6-8 parts of slump retaining agent, 30-50 parts of water.
As above-mentioned technical proposal to further describe, the preparation step of the concrete retarding water-reducing agent is as follows:
S1, polycarboxylate superplasticizer mother liquor, sulfamate and a certain amount of water are mixed, obtains the first mixture；
S2, by sodium gluconate, polyoxyethylene polyoxy propyl alcohol amidogen ether, zinc sulfate, cellulose ether, colophonium pyrolytic polymer, trimerization
Sour sodium, carboxymethyl cellulose, silicone oil, sodium citrate, slump retaining agent and remaining water mixing, obtain the second mixture；
S3, the first mixture is slowly added in the second mixture, and mixed slowly.
As above-mentioned technical proposal to further describe, the sodium gluconate can be by sucrose, maltodextrin replacement or sugarcane
Sugar is mixed with maltodextrin.
As above-mentioned technical proposal to further describe, the mixing velocity of blender is when mixing in the step S1
1000-1500 revs/min, mixing time is no less than 10 minutes, added water 10-20 parts, by adjusting stirring, makes the first mixture
Quickly and it is sufficiently mixed.
As above-mentioned technical proposal to further describe, the mixing velocity of blender is 600- when mixing in the step S2
800 revs/min, mixing time is no less than 30 minutes, and it is 18-25 degrees Celsius that when stirring, which is kept stirring temperature in device, is made each in formula
Material mixing is uniform and avoids high temperature evaporation.
As above-mentioned technical proposal to further describe, the first mixture gradually adds within 2 hours in the step S3
Enter to the second mixture, is slowly added to that two kinds of mixture generations is avoided sharply to react.
As above-mentioned technical proposal to further describe, mixing speed is 15-30 revs/min, when stirring in the step S3
Between no less than 2 hours, avoid substance excessive, keep two kinds of material mixings uniform.
It is as above-mentioned technical proposal to further describe, the polycarboxylate superplasticizer mother liquor be polyesters polycarboxylic acids mother liquor or
It is any in polyethers polycarboxylic acids mother liquor.
(3) beneficial effect
The present invention provides a kind of concrete retarding water-reducing agent, have it is following the utility model has the advantages that
(1) the concrete retarding water-reducing agent, by the way that sodium gluconate is arranged, under the action of sodium citrate and zinc sulfate,
The concrete can be made effectively to extend concrete coagulating time and effective diminishing, by the way that slump retaining agent is arranged, in cellulose ether and silicon
Under the action of oil, the space steric effect of water-reducing agent can be improved, while the water retention property of cellulose ether also contributes to disperse water
Mud pellet can not only improve concrete slump and effectively improve concrete flowability, make to mix to improve the mobility of slurry
The comprehensive mechanical property for coagulating soil effectively improves.
(2) the concrete retarding water-reducing agent, has many advantages, such as that production process is simple, and making apparatus is common, and it is making
When can carry out at room temperature, entire manufacturing process consumes energy low, high degree of automation, is not necessarily to manual intervention, effectively reduces people
Power labour.
Specific embodiment
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment 1
3 parts and 10 parts 45 parts of polycarboxylate superplasticizer mother liquor, sulfamate water are mixed, the mixing speed of blender when mixing
Degree is 1000 revs/min, mixing time 15 minutes, the first mixture is obtained, by 3 parts of sodium gluconate, polyoxyethylene polyoxy propyl alcohol
1 part of amidogen ether, 2 parts of zinc sulfate, 1 part of cellulose ether, 1 part of colophonium pyrolytic polymer, 0.5 part of trimer acid sodium, 3 parts of carboxymethyl cellulose, silicon
3 parts of oil, 1 part of sodium citrate, 6 parts of slump retaining agent and remaining water are mixed, when mixing the mixing velocity of blender be 600 turns/
Point, mixing time 30 minutes, it was 18 degrees Celsius that when stirring, which is kept stirring temperature in device, the second mixture was obtained, by the first mixing
Object is gradually added within 2 hours to the second mixture, and mixing speed is 15 revs/min, mixing time 2 hours.
Embodiment 2
4 parts and 14 parts 52 parts of polycarboxylate superplasticizer mother liquor, sulfamate water are mixed, the mixing speed of blender when mixing
Degree is 1200 revs/min, mixing time 20 minutes, the first mixture is obtained, by 4 parts of sodium gluconate, polyoxyethylene polyoxy propyl alcohol
1 part of amidogen ether, 3 parts of zinc sulfate, 2 parts of cellulose ether, 1 part of colophonium pyrolytic polymer, 1.5 parts of trimer acid sodium, 5 parts of carboxymethyl cellulose, silicon
4 parts of oil, 1.5 parts of sodium citrate, 7 parts of slump retaining agent and remaining water are mixed, and the mixing velocity of blender is 700 when mixing
Rev/min, mixing time 40 minutes, it was 22 degrees Celsius that when stirring, which is kept stirring temperature in device, obtains the second mixture, first is mixed
It closes object to be gradually added within 2 hours to the second mixture, mixing speed is 18 revs/min, mixing time 2.5 hours.
Embodiment 3
5 parts and 20 parts 60 parts of polycarboxylate superplasticizer mother liquor, sulfamate water are mixed, the mixing speed of blender when mixing
Degree is 1500 revs/min, mixing time 30 minutes, the first mixture is obtained, by 5 parts of sodium gluconate, polyoxyethylene polyoxy propyl alcohol
2 parts of amidogen ether, 4 parts of zinc sulfate, 3 parts of cellulose ether, 2 parts of colophonium pyrolytic polymer, 2 parts of trimer acid sodium, 6 parts of carboxymethyl cellulose, silicone oil 5
Part, 2 parts of sodium citrate, 8 parts of slump retaining agent and remaining water are mixed, and the mixing velocity of blender is 800 revs/min when mixing,
Mixing time 60 minutes, it was 25 degrees Celsius that when stirring, which is kept stirring temperature in device, obtains the second mixture, the first mixture is existed
It is gradually added into 2 hours to the second mixture, mixing speed is 30 revs/min, mixing time 3 hours.
At random take concrete retarding water-reducing agent and existing concrete retardation water reducing agent efficacy detection the result is as follows:
| Project | Volume | Water-reducing rate | 1 hour ongoing change amount | Setting time |
| Embodiment one | 1.8% | 27.5% | 10mm | 10h |
| Embodiment two | 1.8% | 27.7% | 10mm | 11h |
| Embodiment three | 1.8% | 28.3% | 12mm | 12h |
| Existing water-reducing agent | 1.8% | 21% | 30mm | 7h |
Show that this water-reducing agent can not only effectively improve water-reducing rate and can be effective after mixing with concrete by comparison
Delay concrete coagulating time, which can not only be such that the mobility of concrete improves, and can make concrete slump retaining performance
It improves, substantially improves mechanical performance of concrete, improve the comprehensive quality of concrete.
In use, polycarboxylate superplasticizer mother liquor, sulfamate and a certain amount of water are mixed, the first mixture is obtained,
By sodium gluconate, polyoxyethylene polyoxy propyl alcohol amidogen ether, zinc sulfate, cellulose ether, colophonium pyrolytic polymer, trimer acid sodium, carboxymethyl
Cellulose, silicone oil, sodium citrate, slump retaining agent and the mixing of remaining water, obtain the second mixture, and the first mixture is slowly added to the
It in two mixtures, and mixes slowly, can be made under the action of sodium citrate and zinc sulfate by the way that sodium gluconate is arranged
The concrete effectively extends concrete coagulating time and effective diminishing, by the way that slump retaining agent is arranged, in cellulose ether and silicone oil
Under effect, the space steric effect of water-reducing agent can be improved, while the water retention property of cellulose ether also contributes to disperse water mud pellet
The sub mobility to improve slurry, can not only improve concrete slump and effectively improve concrete flowability, make concrete
Comprehensive mechanical property effectively improve.
Claims (8)
1. a kind of concrete retarding water-reducing agent, it is characterised in that: the recipe ingredient includes: polycarboxylic acids diminishing in terms of mass fraction
45-60 parts of agent mother liquor, 3-5 parts of sodium gluconate, 1-2 parts of polyoxyethylene polyoxy propyl alcohol amidogen ether, 2-4 parts of zinc sulfate, cellulose ether
1-3 parts, 1-2 parts of colophonium pyrolytic polymer, 0.5-2 parts of trimer acid sodium, 3-6 parts of carboxymethyl cellulose, 3-5 parts of silicone oil, sulfamate
3-5 parts, 1-2 parts of sodium citrate, 6-8 parts of slump retaining agent, 30-50 parts of water.
2. a kind of concrete retarding water-reducing agent according to claim 1, it is characterised in that: the concrete retarding water-reducing agent
Preparation step it is as follows:
S1, polycarboxylate superplasticizer mother liquor, sulfamate and a certain amount of water are mixed, obtains the first mixture；
It is S2, sodium gluconate, polyoxyethylene polyoxy propyl alcohol amidogen ether, zinc sulfate, colophonium pyrolytic polymer, trimer acid sodium, carboxymethyl is fine
Element, silicone oil, slump retaining agent and remaining water mixing are tieed up, the second mixture is obtained；
S3, the first mixture is slowly added in the second mixture, and mixed slowly.
3. a kind of concrete retarding water-reducing agent according to claim 1, it is characterised in that: the sodium gluconate can be by sugarcane
Sugar, maltodextrin replacement or sucrose and maltodextrin mix.
4. a kind of concrete retarding water-reducing agent according to claim 2, it is characterised in that: stirred when being mixed in the step S1
The mixing velocity for mixing device is 1000-1500 revs/min, and mixing time is no less than 10 minutes, added water 10-20 parts.
5. a kind of concrete retarding water-reducing agent according to claim 2, it is characterised in that: stirred when being mixed in the step S2
The mixing velocity for mixing device is 600-800 revs/min, and mixing time is no less than 30 minutes, and it is 18- that when stirring, which is kept stirring temperature in device,
25 degrees Celsius.
6. a kind of concrete retarding water-reducing agent according to claim 2, it is characterised in that: the first mixing in the step S3
Object is gradually added within 2 hours to the second mixture.
7. a kind of concrete retarding water-reducing agent according to claim 2, it is characterised in that: mixing speed in the step S3
It is 15-30 revs/min, mixing time is no less than 2 hours.
8. a kind of concrete retarding water-reducing agent according to claim 1, it is characterised in that: the polycarboxylate superplasticizer mother liquor
It is any in polyesters polycarboxylic acids mother liquor or polyethers polycarboxylic acids mother liquor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910638536.9A CN110467374A (en) | 2019-07-16 | 2019-07-16 | A kind of concrete retarding water-reducing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910638536.9A CN110467374A (en) | 2019-07-16 | 2019-07-16 | A kind of concrete retarding water-reducing agent |
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| Publication Number | Publication Date |
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| CN110467374A true CN110467374A (en) | 2019-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910638536.9A Pending CN110467374A (en) | 2019-07-16 | 2019-07-16 | A kind of concrete retarding water-reducing agent |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112358228A (en) * | 2020-11-23 | 2021-02-12 | 北京富瑞勒斯科技开发有限公司 | Concrete glue reducing agent and preparation method thereof |
| CN112374794A (en) * | 2020-11-16 | 2021-02-19 | 衡阳市银利实业有限公司 | Concrete water reducing agent for reducing slump |
| CN112897921A (en) * | 2021-03-18 | 2021-06-04 | 龙南恒沣建材有限公司 | Concrete retarding water reducing agent |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004099099A1 (en) * | 2003-05-09 | 2004-11-18 | Nippon Shokubai Co., Ltd. | Polycarboxylic acid concrete admixture |
| CN101580354A (en) * | 2009-06-12 | 2009-11-18 | 福建科之杰新材料有限公司 | Polycarboxylic retarding high-performance water reducing agent for preparing concrete of middle and low strength grade |
| CN103058554A (en) * | 2011-10-23 | 2013-04-24 | 苏洲 | Method for preparing sodium citrate retarding, water-reducing and air-entraining agent |
-
2019
- 2019-07-16 CN CN201910638536.9A patent/CN110467374A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004099099A1 (en) * | 2003-05-09 | 2004-11-18 | Nippon Shokubai Co., Ltd. | Polycarboxylic acid concrete admixture |
| CN101580354A (en) * | 2009-06-12 | 2009-11-18 | 福建科之杰新材料有限公司 | Polycarboxylic retarding high-performance water reducing agent for preparing concrete of middle and low strength grade |
| CN103058554A (en) * | 2011-10-23 | 2013-04-24 | 苏洲 | Method for preparing sodium citrate retarding, water-reducing and air-entraining agent |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112374794A (en) * | 2020-11-16 | 2021-02-19 | 衡阳市银利实业有限公司 | Concrete water reducing agent for reducing slump |
| CN112358228A (en) * | 2020-11-23 | 2021-02-12 | 北京富瑞勒斯科技开发有限公司 | Concrete glue reducing agent and preparation method thereof |
| CN112897921A (en) * | 2021-03-18 | 2021-06-04 | 龙南恒沣建材有限公司 | Concrete retarding water reducing agent |
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Application publication date: 20191119 |
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