CN106007467B - A kind of polycarboxylic acids composite strengthening water reducer and preparation method thereof - Google Patents
A kind of polycarboxylic acids composite strengthening water reducer and preparation method thereof Download PDFInfo
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- CN106007467B CN106007467B CN201610331678.7A CN201610331678A CN106007467B CN 106007467 B CN106007467 B CN 106007467B CN 201610331678 A CN201610331678 A CN 201610331678A CN 106007467 B CN106007467 B CN 106007467B
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- water reducer
- polycarboxylic acids
- acrylic resin
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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
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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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to water reducer technical field, specially a kind of polycarboxylic acids composite strengthening water reducer and preparation method thereof.A kind of polycarboxylic acids composite strengthening water reducer, the Composition Weight Parts of the water reducer are as follows：High performance water reducing agent of polyocarboxy acid：2000~3000；Organic silicon emulsion：100~1000；Acrylic resin：3000~5000；Triethanolamine：100~200；Polyurethane rheological agent：10~50；Sodium gluconate：50~300；Anion surfactant：5~10.The present invention can greatly save Cost of Concrete, and concrete strength is significantly higher than the intensity of original concrete.
Description
Technical field
The present invention relates to water reducer technical field, more particularly to a kind of polycarboxylic acids composite strengthening water reducer and its preparation side
Method.
Background technology
In order to save cost of construction, it is necessary to add water reducer in concrete.Water reducer is in concrete workability
And under conditions of cement consumption is constant, can reduce water consumption, improve concrete strength, or it is constant in workability and concrete strength
Under conditions of, save the additive of cement consumption.But the water-reducing effect for the water reducer that current China building trade generally uses is all
It is not ideal enough.Publication No. CN105347721A patent, which discloses a kind of retardation water reducing agent, includes water reducer, retarder and
Economization agent；The water reducer, retarder weight ratio are 9: 1-7: 3：Described economization agent accounts for the gross weight of the water reducer, retarder
Amount percentage is 0.01-0.04%, and the water reducer is naphthalenesulfonateformaldehyde formaldehyde condensation water reducing agent, and the economization agent is SRA-3；It is described
Retarder is ferrous sulfate, prodan, ferrous carbonate, cellulose ether, the one or more of cadmium sulfate.The retardation water reducing agent can
So that cement particle disperses, improve the service behaviour of concrete, delay the setting time of concrete, but subtract using only common
Aqua, its water-reducing effect are general, it is impossible to are effectively reduced the cost of concrete, improve the intensity of concrete.
The content of the invention
The problem of present invention exists for prior art, it is proposed that a kind of polycarboxylic acids composite strengthening water reducer, the water reducer
It is adapted to needs to be used with the concrete that polycarboxylate water-reducer matches, Cost of Concrete can be greatlyd save by preparing the water reducer, and
Concrete strength is significantly higher than the intensity of original concrete.
The technical solution adopted for the present invention to solve the technical problems is：A kind of polycarboxylic acids composite strengthening water reducer, it is described
The Composition Weight Parts of water reducer are as follows：High performance water reducing agent of polyocarboxy acid：2000~3000；Organic silicon emulsion：100~1000；Third
Olefin(e) acid resin：3000~5000；Triethanolamine：100~200；Polyurethane rheological agent：10~50；Sodium gluconate：50~300；It is cloudy from
Sub- surfactant：5~10.
The concrete match ratio that the polycarboxylic acids composite strengthening water reducer of the present invention can match with polycarboxylate water-reducer uses, should
It is more more than incorporation conventional water reducing agents saving cement in water reducer incorporation concrete, in existing commerical ready-mixed concrete, with the diminishing
Agent replaces original water reducer, can substantially reduce the cost of concrete, while intensity will be significantly higher than the strong of original concrete
Degree.
Further, the acrylic resin is acrylic acid modified amino resins.
Further, the surfactant is hydramine sulfonate.
Further, the Composition Weight Parts of the water reducer are as follows：High performance water reducing agent of polyocarboxy acid：2000~2200；It is organic
Silicon emulsion：100~280；Acrylic resin：3000~3400；Triethanolamine：100~120；Polyurethane rheological agent：10~18；Grape
Sodium saccharate：50~100；Anion surfactant：5~6.
Further, the Composition Weight Parts of the water reducer are as follows：High performance water reducing agent of polyocarboxy acid：2200~2400；It is organic
Silicon emulsion：280~460；Acrylic resin：3400~3800；Triethanolamine：120~140；Polyurethane rheological agent：18~26；Grape
Sodium saccharate：100~150；Anion surfactant：6~7.
Further, the Composition Weight Parts of the water reducer are as follows：High performance water reducing agent of polyocarboxy acid：2400~2600；It is organic
Silicon emulsion：460~640；Acrylic resin：3800~4200；Triethanolamine：140~160；Polyurethane rheological agent：26~34；Grape
Sodium saccharate：150~200；Anion surfactant：7~8.
Further, the Composition Weight Parts of the water reducer are as follows：High performance water reducing agent of polyocarboxy acid：2600~2800；It is organic
Silicon emulsion：640~820；Acrylic resin：4200~4600；Triethanolamine：160~180；Polyurethane rheological agent：34~42；Grape
Sodium saccharate：200~250；Anion surfactant：8~9.
Further, the Composition Weight Parts of the water reducer are as follows：High performance water reducing agent of polyocarboxy acid：2800~3000；It is organic
Silicon emulsion：820~1000；Acrylic resin：4600~5000；Triethanolamine：180~200；Polyurethane rheological agent：42~50；Grape
Sodium saccharate：250~300；Anion surfactant：9~10.
It is a further object to provide a kind of preparation method of above-mentioned water reducer.Its technical scheme is as follows：
Preparation method prepared by a kind of polycarboxylic acids composite strengthening water reducer：First by above-mentioned high performance water reducing agent of polyocarboxy acid and
Sodium gluconate is mixed evenly in proportion, then is dissolved in proportion in triethanolamine, reaction 30 ~ 60 minutes, then in proportion
Polyurethane rheological agent is added, is reacted 1 ~ 2 hour, is then proportionally added into acrylic resin and stirs, is reacted 20 ~ 30 minutes,
Organic silicon emulsion is proportionally added into again to stir 10 ~ 15 minutes, is finally proportionally added into anion surfactant and is stirred 3 ~ 5 points
Clock.
It is a further object to provide a kind of preparation method of above-mentioned water reducer.Its technical scheme is as follows：
Preparation method prepared by a kind of polycarboxylic acids composite strengthening water reducer：First by above-mentioned high performance water reducing agent of polyocarboxy acid,
Acrylic resin, triethanolamine, polyurethane rheological agent and sodium gluconate are mixed evenly, are then proportionally added into proportion
Organic silicon emulsion stirs 10 ~ 15 minutes, is finally proportionally added into anion surfactant and stirs.
Existing water reducer water-reducing effect is general, and price is high, and can not be effectively reduced the cost of mixed mud.The present invention will
Existing high efficiency water reducing agent and a certain proportion of organic silicon emulsion, acrylic resin, triethanolamine, polyurethane rheological agent, grape
Sodium saccharate and anion surfactant are compounded to obtain a kind of polycarboxylic acids composite strengthening water reducer by ad hoc approach, relatively existing
Water reducer cost performance is significantly improved.
The invention has the advantages that by common high-performance water reducing agent and a certain proportion of acrylic resin, three ethanol
Amine, the composition such as polyurethane rheological agent and sodium gluconate are mixed to prepare polycarboxylic acids composite strengthening water reducer, can greatlyd save mixed
Native cost is coagulated, and concrete strength is significantly higher than original concrete strength.
Embodiment
Technical scheme is further illustrated below by embodiment.
A kind of polycarboxylic acids composite strengthening water reducer, the Composition Weight Parts of the water reducer are as follows：
High performance water reducing agent of polyocarboxy acid：2000~3000；
Organic silicon emulsion：100~1000；
Acrylic resin：3000~5000；
Triethanolamine：100~200；
Polyurethane rheological agent：10~50；
Sodium gluconate：50~300；
Anion surfactant：5~10.
High performance water reducing agent of polyocarboxy acid is a kind of cement dispersants during cement concrete uses.Be widely used in highway,
The engineerings such as bridge, dam, tunnel, skyscraper.The product are green, nonflammable, non-explosive, can use train and vapour safely
Car transports.Mainly it is copolymerized by unsaturated monomer under initiator effect, by the side chain graft with active group to polymer
Main chain on, make its have simultaneously efficiently, control slump loss and anti-shrink, the effect such as condensation hardening for not influenceing cement.
Polycarboxylate high performance water-reducing agent is to be totally different from naphthalenesulfonate formaldehyde condensation compound NSF and the condensation of melamine sulfonate and formaldehyde
It thing MSF water reducers, can also make concrete that there is high fluidity when low-dosage, and also there is low glue in low water-cement ratio
Degree and slump-retaining energy.It has relatively more preferable compatibility from different cement, is that high-strength high-flowing concrete can not
The material lacked.
Acrylic resin has adhesive effect, and triethanolamine can improve the mobility and loading density of concrete, poly- ammonia
Ester rheological agent can be used for the stability and rheological characteristic for improving mixed mud, and sodium gluconate can increase the plasticity of concrete and strong
Degree, organic silicon emulsion can make concrete have certain corrosion resistance and freeze-thaw resistance, and anion surfactant can improve
The solubility of machine compound.By high performance water reducing agent of polyocarboxy acid and above-mentioned organic silicon emulsion, acrylic resin, triethanolamine, gather
Urethane rheological agent, sodium gluconate and anion surfactant are answered in ratio of the present invention with what methods described was mixed to prepare
Close enhancing water reducer to test using the ordinary portland cement of Chaohu 42.5 in the case of the similar cement amount identical of water-reducing rate, what is obtained answers
The volume for closing enhancing water reducer is 1.2%, and water-reducing rate 27%, bleeding rate ratio is that 20%, 3d compressive strength rates are 215%, compared to common
Naphthalene series high-efficiency water-reducing agent volume be 2.0%, water-reducing rate 26%, bleeding rate ratio is that 79%, 3d compressive strength rates are 150%；Ammonia
The volume of base sulfonate series high-efficiency water-reducing agent is 1.6%, water-reducing rate 25%, and bleeding rate ratio is that 80%, 3d compressive strength rates are
162%；The volume of fatty acid series high efficiency water reducing agent is 2.0%, diminishing 25%, and bleeding rate ratio is that 50%, 3d compressive strength rates are
181%, the concrete strength that its water-reducing rate obtains is significantly improved, and cost is greatly lowered.
Embodiment 1
The polycarboxylic acids composite strengthening water reducer of the present invention is made up of following component parts by weight：Poly-carboxylic high-performance diminishing
Agent：2000；Organic silicon emulsion：100；Acrylic resin：3000；Triethanolamine：100；Polyurethane rheological agent：10；Gluconic acid
Sodium：50；Anion surfactant：5.In use, first by above-mentioned high performance water reducing agent of polyocarboxy acid and sodium gluconate press than
Example is mixed evenly, then is dissolved in proportion in triethanolamine, reacts 30 minutes, is then proportionally added into polyurethane rheological agent,
Reaction 1 hour, is then proportionally added into acrylic resin and stirs, and reacts 20 minutes, then be proportionally added into organic silicon emulsion
Stirring 10 minutes, finally it is proportionally added into anion surfactant and stirs 3 minutes.
Embodiment 2
The polycarboxylic acids composite strengthening water reducer of the present invention is made up of following component parts by weight：Poly-carboxylic high-performance diminishing
Agent：2300；Organic silicon emulsion：400；Acrylic resin：3700；Triethanolamine：130；Polyurethane rheological agent：25；Gluconic acid
Sodium：130；Anion surfactant：7.In use, first by above-mentioned high performance water reducing agent of polyocarboxy acid and sodium gluconate press than
Example is mixed evenly, then is dissolved in proportion in triethanolamine, reacts 40 minutes, is then proportionally added into polyurethane rheological agent,
Reaction 1.3 hours, is then proportionally added into acrylic resin and stirs, and reacts 24 minutes, then is proportionally added into organosilicon breast
Liquid stirs 12 minutes, is finally proportionally added into anion surfactant and stirs 4 minutes.
Embodiment 3
The polycarboxylic acids composite strengthening water reducer of the present invention is made up of following component parts by weight：Poly-carboxylic high-performance diminishing
Agent：2700；Organic silicon emulsion：700；Acrylic resin：4300；Triethanolamine：170；Polyurethane rheological agent：35；Gluconic acid
Sodium：220；Anion surfactant：8.In use, first by above-mentioned high performance water reducing agent of polyocarboxy acid and sodium gluconate press than
Example is mixed evenly, then is dissolved in proportion in triethanolamine, reacts 50 minutes, is then proportionally added into polyurethane rheological agent,
Reaction 1.6 hours, is then proportionally added into acrylic resin and stirs, and reacts 28 minutes, then is proportionally added into organosilicon breast
Liquid stirs 13 minutes, is finally proportionally added into anion surfactant and stirs 4 minutes.
Embodiment 4
The polycarboxylic acids composite strengthening water reducer of the present invention is made up of following component parts by weight：Poly-carboxylic high-performance diminishing
Agent：3000；Organic silicon emulsion：1000；Acrylic resin：5000；Triethanolamine：200；Polyurethane rheological agent：50；Gluconic acid
Sodium：300；Anion surfactant：10.In use, first above-mentioned high performance water reducing agent of polyocarboxy acid and sodium gluconate are pressed
Ratio is mixed evenly, then is dissolved in proportion in triethanolamine, reacts 60 minutes, is then proportionally added into polyurethane rheology
Agent, react 2 hours, be then proportionally added into acrylic resin and stir, react 30 minutes, then be proportionally added into organosilicon breast
Liquid stirs 15 minutes, is finally proportionally added into anion surfactant and stirs 5 minutes.
Embodiment 5
The polycarboxylic acids composite strengthening water reducer of the present invention is made up of following component parts by weight：Poly-carboxylic high-performance diminishing
Agent：2000；Organic silicon emulsion：100；Acrylic resin：3000；Triethanolamine：100；Polyurethane rheological agent：10；Gluconic acid
Sodium：50；Anion surfactant：5.In use, first by above-mentioned high performance water reducing agent of polyocarboxy acid, acrylic resin, three second
Hydramine, polyurethane rheological agent and sodium gluconate are mixed evenly in proportion, are then proportionally added into organic silicon emulsion stirring
10 minutes, finally it is proportionally added into anion surfactant and stirs.
Embodiment 6
The polycarboxylic acids composite strengthening water reducer of the present invention is made up of following component parts by weight：Poly-carboxylic high-performance diminishing
Agent：2300；Organic silicon emulsion：400；Acrylic resin：3700；Triethanolamine：130；Polyurethane rheological agent：25；Gluconic acid
Sodium：130；Anion surfactant：7.In use, first by above-mentioned high performance water reducing agent of polyocarboxy acid, acrylic resin, three second
Hydramine, polyurethane rheological agent and sodium gluconate are mixed evenly in proportion, are then proportionally added into organic silicon emulsion stirring
12 minutes, finally it is proportionally added into anion surfactant and stirs.
Embodiment 7
The polycarboxylic acids composite strengthening water reducer of the present invention is made up of following component parts by weight：Poly-carboxylic high-performance diminishing
Agent：2700；Organic silicon emulsion：700；Acrylic resin：4300；Triethanolamine：170；Polyurethane rheological agent：35；Gluconic acid
Sodium：220；Anion surfactant：8.In use, first by above-mentioned high performance water reducing agent of polyocarboxy acid, acrylic resin, three second
Hydramine, polyurethane rheological agent and sodium gluconate are mixed evenly in proportion, are then proportionally added into organic silicon emulsion stirring
14 minutes, finally it is proportionally added into anion surfactant and stirs.
Embodiment 8
The polycarboxylic acids composite strengthening water reducer of the present invention is made up of following component parts by weight：Poly-carboxylic high-performance diminishing
Agent：3000；Organic silicon emulsion：1000；Acrylic resin：5000；Triethanolamine：200；Polyurethane rheological agent：50；Gluconic acid
Sodium：300；Anion surfactant：10.In use, first by above-mentioned high performance water reducing agent of polyocarboxy acid, acrylic resin, three
Monoethanolamine, polyurethane rheological agent and sodium gluconate are mixed evenly in proportion, are then proportionally added into organic silicon emulsion and stir
Mix 15 minutes, be finally proportionally added into anion surfactant and stir.
Claims (7)
- A kind of 1. polycarboxylic acids composite strengthening water reducer, it is characterised in that：The Composition Weight Parts of the water reducer are as follows：Polycarboxylic acids High-performance water reducing agent：2000~2200；Organic silicon emulsion：100~280；Acrylic resin：3000~3400；Triethanolamine：100~ 120；Polyurethane rheological agent：10~18；Sodium gluconate：50~100；Anion surfactant：5~6；The acrylic resin For acrylic acid modified amino resins；The surfactant is hydramine sulfonate.
- A kind of 2. polycarboxylic acids composite strengthening water reducer, it is characterised in that：The Composition Weight Parts of the water reducer are as follows：Polycarboxylic acids High-performance water reducing agent：2200~2400；Organic silicon emulsion：280~460；Acrylic resin：3400~3800；Triethanolamine：120~ 140；Polyurethane rheological agent：18~26；Sodium gluconate：100~150；Anion surfactant：6~7；The acrylic resin For acrylic acid modified amino resins；The surfactant is hydramine sulfonate.
- A kind of 3. polycarboxylic acids composite strengthening water reducer, it is characterised in that：The Composition Weight Parts of the water reducer are as follows：Polycarboxylic acids High-performance water reducing agent：2400~2600；Organic silicon emulsion：460~640；Acrylic resin：3800~4200；Triethanolamine：140~ 160；Polyurethane rheological agent：26~34；Sodium gluconate：150~200；Anion surfactant：7~8；The acrylic resin For acrylic acid modified amino resins；The surfactant is hydramine sulfonate.
- A kind of 4. polycarboxylic acids composite strengthening water reducer, it is characterised in that：The Composition Weight Parts of the water reducer are as follows：Polycarboxylic acids High-performance water reducing agent：2600~2800；Organic silicon emulsion：640~820；Acrylic resin：4200~4600；Triethanolamine：160~ 180；Polyurethane rheological agent：34~42；Sodium gluconate：200~250；Anion surfactant：8~9；The acrylic resin For acrylic acid modified amino resins；The surfactant is hydramine sulfonate.
- A kind of 5. polycarboxylic acids composite strengthening water reducer, it is characterised in that：The Composition Weight Parts of the water reducer are as follows：Polycarboxylic acids High-performance water reducing agent：2800~3000；Organic silicon emulsion：820~1000；Acrylic resin：4600~5000；Triethanolamine：180~ 200；Polyurethane rheological agent：42~50；Sodium gluconate：250~300；Anion surfactant：9~10；The acrylic acid tree Fat is acrylic acid modified amino resins；The surfactant is hydramine sulfonate.
- 6. a kind of preparation method of the polycarboxylic acids composite strengthening water reducer in claim 1-5 described in any one claim, its It is characterised by：First above-mentioned high performance water reducing agent of polyocarboxy acid and sodium gluconate are mixed evenly in proportion, then in proportion Be dissolved in triethanolamine, react 30 ~ 60 minutes, be then proportionally added into polyurethane rheological agent, react 1 ~ 2 hour, then press than Example adds acrylic resin and stirred, and reacts 20 ~ 30 minutes, then is proportionally added into organic silicon emulsion stirring 10 ~ 15 minutes, most After be proportionally added into anion surfactant stir 3 ~ 5 minutes.
- 7. a kind of preparation method of the polycarboxylic acids composite strengthening water reducer in claim 1-5 described in any one claim, its It is characterised by：First by above-mentioned high performance water reducing agent of polyocarboxy acid, acrylic resin, triethanolamine, polyurethane rheological agent and grape Sodium saccharate is mixed evenly in proportion, is then proportionally added into organic silicon emulsion and stirs 10 ~ 15 minutes, is finally proportionally added into Anion surfactant stirs.
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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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