CN104402290A - Composite water-reducing agent improving concrete construction performances, and preparation method thereof - Google Patents
Composite water-reducing agent improving concrete construction performances, and preparation method thereof Download PDFInfo
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- CN104402290A CN104402290A CN201410598171.9A CN201410598171A CN104402290A CN 104402290 A CN104402290 A CN 104402290A CN 201410598171 A CN201410598171 A CN 201410598171A CN 104402290 A CN104402290 A CN 104402290A
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Abstract
The invention discloses a composite water-reducing agent improving concrete construction performances. The composite water-reducing agent is characterized in that the composite water-reducing agent is prepared from the following raw materials, by weight: 3-4 parts of allyl sodium sulfonate, 2.5-3.5 parts of methacrylic acid, 2-3 parts of calcium lignosulfonate, 20-24 parts of isobutylene alcohol polyoxyethylene ether, 0.4-0.7 parts of potassium persulfate, 0.1-0.2 parts of rosin glycerol ester, 0.6-0.8 parts of potassium fulvate, 2-3 parts of urea, 1-2 parts of sodium gluconate, 5-7 parts of river sand, 2-4 parts of zeolite molecular sieve, 3-5 parts of calcium formate, 28-30 parts of water, and 2-3 parts of a synergist. According to the invention, on a basis of a polycarboxylic acid water-reducing agent process, components such as calcium lignosulfonate and rosin glycerol ester with air-entraining effects are added innovatively. With the cooperation of the synergist, good dispersion is provided. With the composite water-reducing agent provided by the invention, concrete strength is improved, and air-entraining and water-reducing effects are provided. With the composite water-reducing agent, concrete impermeability capacity and fluidity are improved. the reaction conditions are mild, and the process is easy to control.
Description
Technical field
The present invention relates to a kind of preparation method of water reducer, particularly a kind ofly improve composite water-reducing agent of concrete construction performance and preparation method thereof.
Background technology
In modern concrete technique, mix water reducer and there is less investment, instant effect, technical economic benefit and social benefit outstanding feature, be widely used in concrete construction.Gas tracting subtractive agent is a kind of admixture having bleed and diminishing function concurrently.Gas tracting subtractive agent can make concrete produce tiny, uniform microbubble and still can retain bubble after curing, effectively blocks the pore in slurry, changes concrete hole structure, improve its impermeability and weather resistance.After concrete mixes water reducer, because Water-reducing Admixtures To Cements particle has sufficient dissemination, thus improve concrete mobility, enhance its workability; When keeping original workability, can water consumption be reduced, improve concrete intensity.Due to the application of water reducer, its water-reduction can reduce concrete water cement ratio greatly, thus improves concrete intensity.
The present invention, by research, produces a kind of composite water-reducing agent, and collection water reducing ability and bleed nature and flavor one, join the interpolation with synergistic agent, add dispersiveness, improve concrete workability.
Summary of the invention
The object of this invention is to provide and a kind ofly improve composite water-reducing agent of concrete construction performance and preparation method thereof.
In order to realize object of the present invention, the present invention is by following scheme implementation:
Improve a composite water-reducing agent for concrete construction performance, be made up of the raw material of following weight part: sodium allyl sulfonate 3-4, methacrylic acid 2.5-3.5, calcium lignin sulphonate 2-3, isobutene alcohol Soxylat A 25-7 20-24, Potassium Persulphate 0.4-0.7, ester gum 0.1-0.2, potassium fulvate 0.6-0.8, urea 2-3, Sunmorl N 60S 1-2, river sand 5-7, zeolite molecular sieve 2-4, calcium formiate 3-5, water 28-30, synergistic agent 2-3;
Described synergistic agent is prepared from by the raw material of following weight part: ester gum 3-4, quartz sand 6-9, Nano graphite powder 3-5, butyl glycol ether 1-1.5, microcrystalline wax 1.5-2.5, trisodium phosphate 1-2, EVA latex 12-15, aqueous epoxy resins 8-11; First ester gum, microcrystalline wax are heated to soften by preparation method, mix with quartz sand, Nano graphite powder, insulation grinding 15-30 minute, then control temperature is at 40 DEG C-50 DEG C, adds EVA latex, aqueous epoxy resins under the condition of rotating speed 120-180 rev/min, continue to stir after 20-30 minute, finally add all the other remaining components, improve rotating speed to 1000-1200 rev/min, stir 40 minutes, be cooled to room temperature, obtain described synergistic agent.
A kind of composite water-reducing agent improving concrete construction performance of the present invention, be made up of following concrete steps:
(1) Sunmorl N 60S is dissolved in the water of 5-6 times amount, adds river sand, zeolite molecular sieve, calcium formiate, agitation grinding 1-1.5 hour;
(2) by sodium allyl sulfonate, methacrylic acid, isobutene alcohol Soxylat A 25-7, excess water, Potassium Persulphate mixing, be heated to 50 DEG C-70 DEG C, reaction 0.5-1 hour, then adds all the other remaining components except synergistic agent, is warming up to isothermal reaction 2-2.5 hour under 80 DEG C of-85 DEG C of conditions;
(3) step (1) product is mixed with step (2) product, add synergistic agent, stir 30-40 minute with the speed of 600-800 rev/min and get final product.
The invention has the beneficial effects as follows: the present invention is in technique upper of polycarboxylate water-reducer, the interpolation calcium lignin sulphonate, ester gum etc. of innovation have the composition of bleed effect, coordinate and add synergistic agent, good dispersity, there is while invention increases concrete intensity the effect of bleed, diminishing, improve concrete impermeability, mobility, and reaction conditions is gentle, technological process is easy to control.
Specific embodiments
Below by specific examples, the present invention is described in detail.
Improve a composite water-reducing agent for concrete construction performance, be made up of the raw material of following weight part (kilogram): sodium allyl sulfonate 3, methacrylic acid 2.5, calcium lignin sulphonate 2, isobutene alcohol Soxylat A 25-7 20, Potassium Persulphate 0.4, ester gum 0.1, potassium fulvate 0.6, urea 2, Sunmorl N 60S 1, river sand 5, zeolite molecular sieve 2, calcium formiate 3, water 28, synergistic agent 2;
Described synergistic agent is prepared from by the raw material of following weight part (kilogram): ester gum 3, quartz sand 6, Nano graphite powder 3, butyl glycol ether 1, microcrystalline wax 1.5, trisodium phosphate 1, EVA latex 12, aqueous epoxy resins 8; First ester gum, microcrystalline wax are heated to soften by preparation method, mix with quartz sand, Nano graphite powder, insulation grinding 15-30 minute, then control temperature is at 40 DEG C-50 DEG C, adds EVA latex, aqueous epoxy resins under the condition of rotating speed 120-180 rev/min, continue to stir after 20-30 minute, finally add all the other remaining components, improve rotating speed to 1000-1200 rev/min, stir 40 minutes, be cooled to room temperature, obtain described synergistic agent.
A kind of composite water-reducing agent improving concrete construction performance of the present invention, be made up of following concrete steps:
(1) Sunmorl N 60S is dissolved in the water of 5-6 times amount, adds river sand, zeolite molecular sieve, calcium formiate, agitation grinding 1-1.5 hour;
(2) by sodium allyl sulfonate, methacrylic acid, isobutene alcohol Soxylat A 25-7, excess water, Potassium Persulphate mixing, be heated to 50 DEG C-70 DEG C, reaction 0.5-1 hour, then adds all the other remaining components except synergistic agent, is warming up to isothermal reaction 2-2.5 hour under 80 DEG C of-85 DEG C of conditions;
(3) step (1) product is mixed with step (2) product, add synergistic agent, stir 30-40 minute with the speed of 600-800 rev/min and get final product.
The water reducer excellent product performance that the present invention obtains, water-reducing rate can reach 27.5%, and volume of the present invention is the 1%-2% of cement consumption, and in identical water cement ratio situation, the slump can be made to improve more than 15cm, and mobility increases considerably.
Claims (2)
1. one kind is improved the composite water-reducing agent of concrete construction performance, it is characterized in that, be made up of the raw material of following weight part: sodium allyl sulfonate 3-4, methacrylic acid 2.5-3.5, calcium lignin sulphonate 2-3, isobutene alcohol Soxylat A 25-7 20-24, Potassium Persulphate 0.4-0.7, ester gum 0.1-0.2, potassium fulvate 0.6-0.8, urea 2-3, Sunmorl N 60S 1-2, river sand 5-7, zeolite molecular sieve 2-4, calcium formiate 3-5, water 28-30, synergistic agent 2-3;
Described synergistic agent is prepared from by the raw material of following weight part: ester gum 3-4, quartz sand 6-9, Nano graphite powder 3-5, butyl glycol ether 1-1.5, microcrystalline wax 1.5-2.5, trisodium phosphate 1-2, EVA latex 12-15, aqueous epoxy resins 8-11; First ester gum, microcrystalline wax are heated to soften by preparation method, mix with quartz sand, Nano graphite powder, insulation grinding 15-30 minute, then control temperature is at 40 DEG C-50 DEG C, adds EVA latex, aqueous epoxy resins under the condition of rotating speed 120-180 rev/min, continue to stir after 20-30 minute, finally add all the other remaining components, improve rotating speed to 1000-1200 rev/min, stir 40 minutes, be cooled to room temperature, obtain described synergistic agent.
2. a kind of composite water-reducing agent improving concrete construction performance according to claim 1, is characterized in that, be made up of following concrete steps:
(1) Sunmorl N 60S is dissolved in the water of 5-6 times amount, adds river sand, zeolite molecular sieve, calcium formiate, agitation grinding 1-1.5 hour;
(2) by sodium allyl sulfonate, methacrylic acid, isobutene alcohol Soxylat A 25-7, excess water, Potassium Persulphate mixing, be heated to 50 DEG C-70 DEG C, reaction 0.5-1 hour, then adds all the other remaining components except synergistic agent, is warming up to isothermal reaction 2-2.5 hour under 80 DEG C of-85 DEG C of conditions;
(3) step (1) product is mixed with step (2) product, add synergistic agent, stir 30-40 minute with the speed of 600-800 rev/min and get final product.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109053021A (en) * | 2018-07-03 | 2018-12-21 | 浙江衢州鼎盛建材有限公司 | A kind of sustained release high collapse protection type polycarboxylate water-reducer and preparation method thereof |
| CN109133698A (en) * | 2018-08-21 | 2019-01-04 | 马清浩 | A kind of water-reducing agent and preparation method thereof improving strength cement-based grouting material high temperature performance |
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| CN102351459A (en) * | 2011-07-15 | 2012-02-15 | 清华大学 | Preparation method of sustained-release water reducer microcapsule |
| CN102786255A (en) * | 2012-07-17 | 2012-11-21 | 中科院广州化学有限公司 | Water-based mortar modifier, its preparation method and application |
| CN102936110A (en) * | 2012-12-10 | 2013-02-20 | 马鞍山中海新材料有限公司 | Lignosulfonate-polycarboxylic acid copolymerized composite high-performance water reducer and preparation method thereof |
| CN103467671A (en) * | 2013-09-17 | 2013-12-25 | 广东科之杰新材料有限公司 | Preparation method of polycarboxylate superplasticizer with high water reducing rate |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102127401A (en) * | 2010-12-17 | 2011-07-20 | 中国石油集团长城钻探工程有限公司 | High-temperature-resistant tackifier for drilling fluid and preparation method thereof |
| CN102351459A (en) * | 2011-07-15 | 2012-02-15 | 清华大学 | Preparation method of sustained-release water reducer microcapsule |
| CN102786255A (en) * | 2012-07-17 | 2012-11-21 | 中科院广州化学有限公司 | Water-based mortar modifier, its preparation method and application |
| CN102936110A (en) * | 2012-12-10 | 2013-02-20 | 马鞍山中海新材料有限公司 | Lignosulfonate-polycarboxylic acid copolymerized composite high-performance water reducer and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109053021A (en) * | 2018-07-03 | 2018-12-21 | 浙江衢州鼎盛建材有限公司 | A kind of sustained release high collapse protection type polycarboxylate water-reducer and preparation method thereof |
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| CN109133698A (en) * | 2018-08-21 | 2019-01-04 | 马清浩 | A kind of water-reducing agent and preparation method thereof improving strength cement-based grouting material high temperature performance |
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