CN103819628B - A kind of water reducer with concrete workability regulatory function and synthetic method thereof - Google Patents
A kind of water reducer with concrete workability regulatory function and synthetic method thereof Download PDFInfo
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- CN103819628B CN103819628B CN201310749293.9A CN201310749293A CN103819628B CN 103819628 B CN103819628 B CN 103819628B CN 201310749293 A CN201310749293 A CN 201310749293A CN 103819628 B CN103819628 B CN 103819628B
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- concrete
- water reducer
- water
- regulatory function
- raw material
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 27
- 230000009711 regulatory function Effects 0.000 title claims abstract description 11
- 238000010189 synthetic method Methods 0.000 title claims description 10
- 239000002994 raw material Substances 0.000 claims abstract description 14
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 9
- JPAOMENBKRZQDR-UHFFFAOYSA-N CC=CC.[Na] Chemical compound CC=CC.[Na] JPAOMENBKRZQDR-UHFFFAOYSA-N 0.000 claims abstract description 6
- QVDTXNVYSHVCGW-ONEGZZNKSA-N isopentenol Chemical compound CC(C)\C=C\O QVDTXNVYSHVCGW-ONEGZZNKSA-N 0.000 claims abstract description 6
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 6
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 6
- XFTALRAZSCGSKN-UHFFFAOYSA-M sodium;4-ethenylbenzenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C1=CC=C(C=C)C=C1 XFTALRAZSCGSKN-UHFFFAOYSA-M 0.000 claims abstract description 6
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims abstract description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims abstract description 5
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims abstract description 5
- 235000019394 potassium persulphate Nutrition 0.000 claims abstract description 5
- 239000002253 acid Substances 0.000 claims abstract description 4
- 125000005395 methacrylic acid group Chemical group 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 230000006870 function Effects 0.000 abstract description 2
- 229920005646 polycarboxylate Polymers 0.000 description 7
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 229920002310 Welan gum Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000000230 xanthan gum Substances 0.000 description 1
- 235000010493 xanthan gum Nutrition 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
- 229940082509 xanthan gum Drugs 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention discloses a kind of water reducer with concrete workability regulatory function, it is made up of a isopentenol polyoxyethylene ether, the acid of b acrylic or methacrylic or both mixture, c maleic anhydride, d sodium p styrene sulfonate, e Ammonium persulfate. or potassium peroxydisulfate or both mixture, f methylpropene sodium sulfonate, the mol ratio of each raw material dosage: a:b:c:d:f=1:1～1.5:1.5～2.5:0.2～0.25:0.3～0.6, e consumption is a, the 0.5～1.0% of b, c gross weight.While the water reducer of the present invention has water holding capacity, there is the function of reduction concrete surface tension force thus do not affect viscosity and the mobility of concrete, also ensure that the normal of concrete condenses and strength development simultaneously.
Description
Technical field
The present invention relates to relate to a kind of water reducer for building, a kind of water reducer with concrete workability regulatory function and synthetic method thereof.
Background technology
In recent years along with the large-scale country development of construction project such as state-owned railroads, harbour, nuclear power and the requirement to concrete high-performance of these major projects so that polycarboxylate high performance water-reducing agent is commercially available to be developed colleague rapidly and also driven the continuous progressive of polycarboxylate water-reducer synthesis and application technology.Along with the upstream supply of raw materials reaches its maturity, polycarboxylate water-reducer superiority of effectiveness relatively other water reducers are compared become increasingly conspicuous, the water reducing ability of its excellence, slump retaining and green environmental protection more and more obtain the accreditation in market, have greatly and surmount Cai's based water reducer and become the main flow in water reducer market.But, to promote and in application at it, some shortcomings of polycarboxylate water-reducer self have impact on its development the most in some extent.As long as its problem existed has: 1. the inadaptability of the aggregate that pair clay content is high.2. pair volume and the tender subject of water consumption.3. the apparent air bubble problem of concrete.4. collapse after concrete goes out pump and damage the problems such as big.So for problem above, during water reducer uses, the series of problems produced due to early stage or delayed bleeding isolation that some water conservation adjusting adhesives are brought will be filled with reduction sensitivity and slow release.However, for most of water conservation adjusting adhesive, such as: cellulose, welan gum, sodium alginate, xanthan gum all exist series of problems to be difficult to effectively apply.As: immiscible with poly-shuttle acid water reducer, have precipitation and lamination；Concrete viscosity can be increased and affect mobility；Most setting times that can affect concrete, affect the intensity of concrete；Also increase along with its plasticity of increase of concrete viscosity houses.
Summary of the invention
For above-mentioned deficiency, the present invention provides a kind of water reducer with concrete workability regulatory function and synthetic method thereof.
The technical scheme is that and be achieved in that: a kind of water reducer with concrete workability regulatory function, it is characterised in that be made up of following raw material:
A isopentenol polyoxyethylene ether
The acid of b acrylic or methacrylic or both mixture
C maleic anhydride
D sodium p styrene sulfonate
E Ammonium persulfate. or potassium peroxydisulfate or both mixture
F methylpropene sodium sulfonate,
The mol ratio of each raw material dosage: a:b:c:d:f=1: 1～1.5:1.5～2.5: 0.2～0.25: 0.3～0.6, e consumption is a, the 0.5～1.0% of b, c gross weight.
The preferred molar ratio of described each raw material dosage: a:b:c:d:f=1: 1: 2: 0.2: 0.5.
There is the synthetic method of the water reducer of concrete workability regulatory function: be dissolved in suitable quantity of water by e and be made into dropping liquid A, add water in reactor, then by a, b, c, d, f are sequentially added into reactor, stirring is dissolved, and it is warming up to 60-70 degree, dropping liquid A is uniformly dripped in reactor, all added with 3 hours, and continue to keep 60-70 degree 1 hour, reaction terminates.
The concentration of described dropping liquid A is 5～10% mass fraction.
While the invention have the benefit that the water reducer of the present invention has water holding capacity, have and reduce the function of concrete surface tension force thus do not affect viscosity and the mobility of concrete, also ensure that the normal of concrete condenses and strength development simultaneously.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further explained explanation.
Embodiment 1
Raw material composition and proportioning thereof:
A isopentenol polyoxyethylene ether
B acrylic acid or
C maleic anhydride
D sodium p styrene sulfonate
E Ammonium persulfate.
F methylpropene sodium sulfonate,
The preferred molar ratio of described each raw material dosage: a:b:c:d:f=1: 1: 2: 0.2: 0.5, e consumption is a, the 0.5% of b, c gross weight.
There is the synthetic method of the water reducer of concrete workability regulatory function: be dissolved in suitable quantity of water by e and be made into dropping liquid A, add water in reactor, then by a, b, c, d, f are sequentially added into reactor, stirring is dissolved, and it is warming up to 60-70 degree, dropping liquid A is uniformly dripped in reactor, all added with 3 hours, and continue to keep 60-70 degree 1 hour, reaction terminates.
Embodiment 2
Raw material composition and proportioning thereof:
A isopentenol polyoxyethylene ether
B methacrylic acid
C maleic anhydride
D sodium p styrene sulfonate
E potassium peroxydisulfate
F methylpropene sodium sulfonate,
The mol ratio of each raw material dosage: a:b:c:d:f=1: 1:1.5:0.2:0.3, e consumption is a, the 0.6% of b, c gross weight.
Its synthetic method is with embodiment 1.
Embodiment 3
Raw material composition and proportioning thereof:
A isopentenol polyoxyethylene ether
B acrylic acid and methacrylic acid
C maleic anhydride
D sodium p styrene sulfonate
E Ammonium persulfate. and potassium peroxydisulfate
F methylpropene sodium sulfonate,
The mol ratio of each raw material dosage: a:b:c:d:f=1: 1～1.5:1.5～2.5: 0.2～0.25: 0.3～0.6, e consumption is a, the 0.5～1.0% of b, c gross weight.
Its synthetic method is with embodiment 1.
Synthesize 40% polycarboxylate water-reducer as stated above, this sintetics be see table with match ratio comparison and detection result with market polycarboxylate water-reducer.
| Product | Volume % | Bleeding rate compares % | Divergence mm | Air content % |
| Common polycarboxylate water-reducer | 0.4 | 22 | 585 | 3.1 |
| Embodiment 1 | 0.4 | 0 | 650 | 3.5 |
| Embodiment 2 | 0.4 | 0 | 630 | 3.4 |
| Embodiment 3 | 0.4 | 0 | 625 | 3.5 |
Using this synthesis water reducer, concrete has more preferable workability.
The above; it is only the present invention preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; any those familiar with the art is in the technical scope of present disclosure; according to technical scheme and inventive concept equivalent or change in addition thereof, all should contain within protection scope of the present invention.
Claims (3)
1. a water reducer with concrete workability regulatory function, it is characterised in that be made up of following raw material:
A isopentenol polyoxyethylene ether
The acid of b acrylic or methacrylic or both mixture
C maleic anhydride
D sodium p styrene sulfonate
E Ammonium persulfate. or potassium peroxydisulfate or both mixture
F methylpropene sodium sulfonate,
The mol ratio of each raw material dosage: a:b:c:d:f=1: 1～1.5:1.5～2.5: 0.2～0.25: 0.3～0.6, e consumption is a, the 0.5～1.0% of b, c gross weight；
Its synthetic method is: is dissolved in suitable quantity of water by e and is made into dropping liquid A, adds water in reactor, then by a, b, c, d, f are sequentially added into reactor, stirring is dissolved, and it is warming up to 60-70 degree, dropping liquid A is uniformly dripped in reactor, added with 3 hours, and continue to keep 60-70 degree 1 hour, reaction terminates.
The water reducer with concrete workability regulatory function the most according to claim 1, it is characterised in that the mol ratio of described each raw material dosage: a:b:c:d:f=1: 1: 2: 0.2: 0.5.
The synthetic method of the water reducer with concrete workability regulatory function the most according to claim 1, it is characterised in that the concentration of described dropping liquid A is 5～10% mass fraction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310749293.9A CN103819628B (en) | 2013-12-31 | 2013-12-31 | A kind of water reducer with concrete workability regulatory function and synthetic method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310749293.9A CN103819628B (en) | 2013-12-31 | 2013-12-31 | A kind of water reducer with concrete workability regulatory function and synthetic method thereof |
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| CN103819628A CN103819628A (en) | 2014-05-28 |
| CN103819628B true CN103819628B (en) | 2016-08-17 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103992057B (en) * | 2014-06-10 | 2016-03-30 | 十九冶成都建设有限公司 | Method for solving problem of concrete delayed bleeding |
| CN106188421B (en) * | 2016-07-22 | 2018-09-14 | 重庆三圣特种建材股份有限公司 | A kind of viscosity reduction type poly carboxylic acid series water reducer and preparation method thereof |
| CN112759722B (en) * | 2019-11-05 | 2022-05-10 | 中国石油天然气集团有限公司 | Fluid loss agent, preparation method and application thereof |
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| CN101928114A (en) * | 2010-08-30 | 2010-12-29 | 大连建科北方化学有限公司 | High water reduction high collapse protection type polycarboxylate high-performance water reducer and pyrogen-free preparation method thereof |
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| CN102584094A (en) * | 2012-03-09 | 2012-07-18 | 天津诺德建筑材料有限公司 | Polycarboxylic acid slump retaining agent for concrete and preparation method thereof |
| CN102718427A (en) * | 2012-06-21 | 2012-10-10 | 马清浩 | Sulfonyl modified carboxylic acid water-reducing agent and preparation method thereof |
| CN102815882A (en) * | 2012-08-03 | 2012-12-12 | 山西科腾环保科技有限公司 | High-performance water reducer of polycarboxylic acid, and preparation method thereof |
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- 2013-12-31 CN CN201310749293.9A patent/CN103819628B/en not_active Expired - Fee Related
Patent Citations (8)
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| CN101104686A (en) * | 2007-07-04 | 2008-01-16 | 江苏省化工研究所有限公司 | Preparation method for polycarboxylic acid high-performance water reducer |
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| CN101708974A (en) * | 2009-11-18 | 2010-05-19 | 南京师范大学 | Polycarboxylic acid type concrete water reducer and preparation method thereof |
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| CN102584094A (en) * | 2012-03-09 | 2012-07-18 | 天津诺德建筑材料有限公司 | Polycarboxylic acid slump retaining agent for concrete and preparation method thereof |
| CN102718427A (en) * | 2012-06-21 | 2012-10-10 | 马清浩 | Sulfonyl modified carboxylic acid water-reducing agent and preparation method thereof |
| CN102815882A (en) * | 2012-08-03 | 2012-12-12 | 山西科腾环保科技有限公司 | High-performance water reducer of polycarboxylic acid, and preparation method thereof |
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| CN103819628A (en) | 2014-05-28 |
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