CN106747645A - A kind of enhanced sealing compound of concrete - Google Patents
A kind of enhanced sealing compound of concrete Download PDFInfo
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- CN106747645A CN106747645A CN201611073639.8A CN201611073639A CN106747645A CN 106747645 A CN106747645 A CN 106747645A CN 201611073639 A CN201611073639 A CN 201611073639A CN 106747645 A CN106747645 A CN 106747645A
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- Prior art keywords
- concrete
- sealing compound
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- acrylic emulsion
- enhanced sealing
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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
- C04B40/04—Preventing evaporation of the mixing water
Abstract
The invention discloses a kind of enhanced sealing compound of concrete, it is made up of the following raw material of mass parts：80~100 parts of silicone acrylic emulsion, 5~10 parts of sodium metasilicate, 1~10 part of aluminum sulfate, 1~5 part of early strength agent, 1~5 part of hydrophober, 0.1~2 part of levelling agent, 1~5 part of konjaku powder, 1~10 part of deionized water；Described silicone acrylic emulsion is 20 by mass ratio：13：22：0.2：0.1：4：2：3：30 active silicone, styrene, Isooctyl acrylate monomer, acrylamide, silane coupler, sodium peroxydisulfate, methyl methacrylate, Lauryl Alcohol ester and deionized water are made.Be combined for inorganic sealing compound and organic sealing compound by the present invention, curing film is formed in concrete surface, and diffusion to concrete and concrete material reacts, prevent moisture evaporation, and promote concrete to form tight structure, improve the intensity and cracking resistance of concrete, volume contraction reduced, with high-moisture-retention and weatherability.
Description
Technical field
The present invention relates to concrete curing technical field, and in particular to a kind of enhanced sealing compound of concrete.
Background technology
Curing compound is also called concrete surface water-loss reducer, is that one kind is sprayed on young concrete or mortar surface
The concrete admixture that can effectively prevent internal moisture from evaporating.Curing compound mainly has water glass type, paraffin wax emulsions type, height
The type maintainers such as molecule emulsion-type, Inorganic whisker type, moisture absorbing resin type.At present, the sealing compound of in the market is also generally deposited
Water retention it is low, stablize the defects such as poor, poor durability, and water glass type maintainers also have that water retention is low, and the big grade of amount of application lacks
Fall into, paraffin wax emulsions type sealing compound is more sensitive to hot environment, macromolecule emulsion high cost, plugging blocking sprayer when there is also injection
The problems such as.At present, market is to the demand of maintainers also more and more functionalization, with water retention high, hydrophobicity, high-effective penetrating
Property, promoting the strong property, improve the demand that the complex function type sealing compound such as concrete strength and wearability more meets market.
The content of the invention
It is an object of the present invention to be directed to prior art, there is provided a kind of enhanced sealing compound of concrete.
To achieve the above object, the present invention takes following technical scheme：
A kind of enhanced sealing compound of concrete is made up of the following raw material of mass parts：80~100 parts of silicone acrylic emulsion, sodium metasilicate 5
~10 parts, 1~10 part of aluminum sulfate, 1~5 part of early strength agent, 1~5 part of hydrophober, 0.1~2 part of levelling agent, 1~5 part of konjaku powder,
1~10 part of deionized water；Described silicone acrylic emulsion is 20 by mass ratio：13：22：0.2：0.1：4：2：3：30 activated silica tree
Fat, styrene, Isooctyl acrylate monomer, acrylamide, silane coupler, sodium peroxydisulfate, methyl methacrylate, Lauryl Alcohol ester
It is made with deionized water.
Wherein, described early strength agent is preferably triethanolamine.
Wherein, described hydrophober is preferably methyl silicon sodium alcoholate.
Wherein, described levelling agent is preferably fluorine-carbon modified polyacrylate.
Further, the preparation method of the enhanced sealing compound of concrete of the invention is：Konjaku powder is dissolved in deionization
In water, after adding silicone acrylic emulsion, early strength agent, hydrophober, levelling agent mixing, add sodium metasilicate, aluminum sulfate machine and continue to stir
Obtain the enhanced sealing compound of concrete.
In the present invention, the preparation method of described silicone acrylic emulsion is：By deionized water, acrylamide, methyl methacrylate
Ester adds stirring and dissolving in container, adds normal temperature emulsification after active silicone, styrene, isobutyl acrylate stir
20min, after being warming up to 70 DEG C, after adding Lauryl Alcohol ester, sodium peroxydisulfate is added under the conditions of 80 DEG C in 2h, adds silane
Coupling agent, after insulation 2h, after stirring is cooled to 35 DEG C, crosses 200 mesh filter clothes and obtains final product silicone acrylic emulsion.
In the present invention, organic component forms film in concrete surface in the present invention, reduces the steaming of concrete surface moisture
, there is chemical reaction and form colloidal substance effectively to clog hair in hair, and during inorganic component penetrates into the pore of concrete surface
Pore, so as to reduce moisture evaporation.
Further, inorganic component is sodium metasilicate and aluminum sulfate, and sodium metasilicate and aluminum sulfate can penetrate into concrete surface layer, silicon
Sour sodium reacts with hydrolysis product of cement reaction generation silicate colloid material, aluminum sulfate with concrete, and generation is containing a large amount of
Crystallization, the aquation aluminum sulfate salt of volumetric expansion, aquation aluminum sulfate salt and silicate colloid material contribute to concrete surface is empty
Gap is blocked, and effectively prevents the evaporation of concrete moisture.
In the present invention, konjaku powder has very strong thickening property and gelling, and it coordinates with silicone acrylic emulsion can accelerate maintenance
The rate of film build of agent, improves the permeance property and film-formation result of sealing compound.
In the present invention, triethanolamine is a kind of organic surface active agent, is used as early strength agent in the present invention, can be improved
Concrete surface layer intensity, makes concrete surface relatively internal with rapid hardening, closed superficial layer space, reduces the additional issue of concrete moisture
Loss.
In the present invention, silanol base carries out dehydrated crosslinking reaction with silicate material silanol base in methyl silicon sodium alcoholate, and formation is hated
Water layer, methyl silicon sodium alcoholate penetrates into concrete pore detail and forms water barrier from concrete surface, with water retention.
The beneficial effects of the invention are as follows：Be combined for inorganic sealing compound and organic sealing compound by the present invention, in concrete surface shape
Reacted into curing film, and diffusion to concrete and concrete material, prevent moisture evaporation, and promote concrete to form closely knot
Structure, improves the intensity and cracking resistance of concrete, volume contraction is reduced, with high-moisture-retention and weatherability.
Specific embodiment
With reference to specific embodiment, to further instruction of the present invention.
Embodiment 1
A kind of enhanced sealing compound of concrete is made up of the following raw material of mass parts：90 parts of silicone acrylic emulsion, 6 parts of sodium metasilicate, sulphur
5 parts of sour aluminium, 2 parts of early strength agent, 3 parts of hydrophober, 1 part of levelling agent, 2 parts of konjaku powder, 5 parts of deionized water；Wherein, silicone acrylic emulsion by
Mass ratio is 20：13：22：0.2：0.1：4：2：3：30 active silicone, styrene, Isooctyl acrylate monomer, acrylamide, silicon
Alkane coupling agent, sodium peroxydisulfate, methyl methacrylate, Lauryl Alcohol ester and deionized water are made, and early strength agent is triethanolamine, is hated
Aqua is methyl silicon sodium alcoholate, and levelling agent is fluorine-carbon modified polyacrylate.
A kind of preparation method of the enhanced sealing compound of concrete is：Konjaku powder is dissolved in deionized water, silicon is added
After acrylic emulsion, early strength agent, hydrophober, levelling agent are mixed, add sodium metasilicate, aluminum sulfate machine continue to stir concrete is enhanced
Sealing compound, wherein, the preparation method of silicone acrylic emulsion is：By in deionized water, acrylamide, methyl methacrylate addition container
Stirring and dissolving, adds normal temperature emulsification 20min after active silicone, styrene, isobutyl acrylate stir, and is warming up to 70
After DEG C, after adding Lauryl Alcohol ester, sodium peroxydisulfate is added in 2h under the conditions of 80 DEG C, add silane coupler, be incubated 2h
Afterwards, after stirring is cooled to 35 DEG C, 200 mesh filter clothes is crossed and obtains final product silicone acrylic emulsion.
Embodiment 2
A kind of enhanced sealing compound of concrete is made up of the following raw material of mass parts：90 parts of silicone acrylic emulsion, 6 parts of sodium metasilicate, sulphur
7 parts of sour aluminium, 3 parts of early strength agent, 4 parts of hydrophober, 0.5 part of levelling agent, 3 parts of konjaku powder, 7 parts of deionized water；Wherein, silicone acrylic emulsion
It is 20 by mass ratio：13：22：0.2：0.1：4：2：3：30 active silicone, styrene, Isooctyl acrylate monomer, acrylamide,
Silane coupler, sodium peroxydisulfate, methyl methacrylate, Lauryl Alcohol ester and deionized water are made, and early strength agent is triethanolamine,
Hydrophober is methyl silicon sodium alcoholate, and levelling agent is fluorine-carbon modified polyacrylate.
Its preparation method is with embodiment 1.
Embodiment 3
A kind of enhanced sealing compound of concrete is made up of the following raw material of mass parts：85 parts of silicone acrylic emulsion, 9 parts of sodium metasilicate, sulphur
3 parts of sour aluminium, 4 parts of early strength agent, 2 parts of hydrophober, 1.8 parts of levelling agent, 2 parts of konjaku powder, 8 parts of deionized water；Wherein, silicone acrylic emulsion
It is 20 by mass ratio：13：22：0.2：0.1：4：2：3：30 active silicone, styrene, Isooctyl acrylate monomer, acrylamide,
Silane coupler, sodium peroxydisulfate, methyl methacrylate, Lauryl Alcohol ester and deionized water are made, and early strength agent is triethanolamine,
Hydrophober is methyl silicon sodium alcoholate, and levelling agent is fluorine-carbon modified polyacrylate.
Its preparation method is with embodiment 1.
Embodiment 4
A kind of enhanced sealing compound of concrete is made up of the following raw material of mass parts：80 parts of silicone acrylic emulsion, 10 parts of sodium metasilicate, sulphur
1 part of sour aluminium, 5 parts of early strength agent, 1 part of hydrophober, 2 parts of levelling agent, 1 part of konjaku powder, 10 parts of deionized water；Wherein, silicone acrylic emulsion
It is 20 by mass ratio：13：22：0.2：0.1：4：2：3：30 active silicone, styrene, Isooctyl acrylate monomer, acrylamide,
Silane coupler, sodium peroxydisulfate, methyl methacrylate, Lauryl Alcohol ester and deionized water are made, and early strength agent is triethanolamine,
Hydrophober is methyl silicon sodium alcoholate, and levelling agent is fluorine-carbon modified polyacrylate.
Its preparation method is with embodiment 1.
Embodiment 5
A kind of enhanced sealing compound of concrete is made up of the following raw material of mass parts：100 parts of silicone acrylic emulsion, 5 parts of sodium metasilicate, sulphur
10 parts of sour aluminium, 1 part of early strength agent, 5 parts of hydrophober, 0.1 part of levelling agent, 5 parts of konjaku powder, 1 part of deionized water；Wherein, the breast of silicon third
Liquid is 20 by mass ratio：13：22：0.2：0.1：4：2：3：30 active silicone, styrene, Isooctyl acrylate monomer, acryloyl
Amine, silane coupler, sodium peroxydisulfate, methyl methacrylate, Lauryl Alcohol ester and deionized water are made, and early strength agent is three ethanol
Amine, hydrophober is methyl silicon sodium alcoholate, and levelling agent is fluorine-carbon modified polyacrylate.
Its preparation method is with embodiment 1.
Claims (6)
1. the enhanced sealing compound of a kind of concrete, it is characterised in that it is made up of the following raw material of mass parts：Silicone acrylic emulsion 80~
100 parts, 5~10 parts of sodium metasilicate, 1~10 part of aluminum sulfate, 1~5 part of early strength agent, 1~5 part of hydrophober, 0.1~2 part of levelling agent, evil spirit
1~5 part of taro fine powder, 1~10 part of deionized water；Described silicone acrylic emulsion is 20 by mass ratio：13：22：0.2：0.1：4：2：3：
30 active silicone, styrene, Isooctyl acrylate monomer, acrylamide, silane coupler, sodium peroxydisulfate, methyl methacrylate
Ester, Lauryl Alcohol ester and deionized water are made.
2. the enhanced sealing compound of a kind of concrete according to claim 1, it is characterised in that described early strength agent is three second
Hydramine.
3. the enhanced sealing compound of a kind of concrete according to claim 1, it is characterised in that described hydrophober is methyl
Sodium silanolate.
4. the enhanced sealing compound of a kind of concrete according to claim 1, it is characterised in that described levelling agent is fluorine carbon
Modified polyacrylate.
5. according to a kind of preparation method of any described enhanced sealing compounds of concrete of claim 1-4, it is characterised in that its
Preparation method is：Konjaku powder is dissolved in deionized water, silicone acrylic emulsion, early strength agent, hydrophober, levelling agent is added and is mixed
Afterwards, sodium metasilicate, aluminum sulfate machine is added to continue to stir to obtain the enhanced sealing compound of concrete.
6. a kind of preparation method of the enhanced sealing compound of concrete according to claim 5, it is characterised in that described silicon
The preparation method of acrylic emulsion is：By stirring and dissolving in deionized water, acrylamide, methyl methacrylate addition container, then add
Enter normal temperature emulsification 20min after active silicone, styrene, isobutyl acrylate stir, after being warming up to 70 DEG C, add 12
After carbon alcohol ester, sodium peroxydisulfate is added in 2h under the conditions of 80 DEG C, add silane coupler, after insulation 2h, stirring is cooled to
After 35 DEG C, cross 200 mesh filter clothes and obtain final product silicone acrylic emulsion.
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| CN201611073639.8A CN106747645A (en) | 2016-11-29 | 2016-11-29 | A kind of enhanced sealing compound of concrete |
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| CN201611073639.8A CN106747645A (en) | 2016-11-29 | 2016-11-29 | A kind of enhanced sealing compound of concrete |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107986818A (en) * | 2018-01-08 | 2018-05-04 | 中交三公局第工程有限公司 | Compound concrete curing fluid and preparation method thereof |
| CN108892536A (en) * | 2018-06-20 | 2018-11-27 | 河南阳光防水科技有限公司 | The early strong curing agent of cement |
| CN111138209A (en) * | 2020-01-15 | 2020-05-12 | 江苏奥莱特新材料股份有限公司 | Concrete external curing agent |
| CN114605858A (en) * | 2022-03-30 | 2022-06-10 | 厦门路桥翔通建材科技有限公司 | Self-crystallization permeable concrete protective coating and preparation method thereof |
| CN115259897A (en) * | 2022-07-07 | 2022-11-01 | 山西佳维新材料股份有限公司 | Organic-inorganic composite concrete curing agent, preparation method and concrete curing method |
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| CN101298373A (en) * | 2008-06-27 | 2008-11-05 | 辽宁省建设科学研究院 | Novel modified emulsifying olefin concrete curing agent |
| CN103253985A (en) * | 2013-05-15 | 2013-08-21 | 长安大学 | Composite-type cement concrete curing agent and preparation method thereof |
| CN105175008A (en) * | 2015-09-24 | 2015-12-23 | 界首市三宝博达建材有限公司 | Non-toxic and non-corrosiveness nanosilicone dioxide enhanced type concrete curing agent |
| CN105271923A (en) * | 2015-09-24 | 2016-01-27 | 滁州京安工贸有限责任公司 | Concrete and mortar curing agent |
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2016
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Patent Citations (4)
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| CN101298373A (en) * | 2008-06-27 | 2008-11-05 | 辽宁省建设科学研究院 | Novel modified emulsifying olefin concrete curing agent |
| CN103253985A (en) * | 2013-05-15 | 2013-08-21 | 长安大学 | Composite-type cement concrete curing agent and preparation method thereof |
| CN105175008A (en) * | 2015-09-24 | 2015-12-23 | 界首市三宝博达建材有限公司 | Non-toxic and non-corrosiveness nanosilicone dioxide enhanced type concrete curing agent |
| CN105271923A (en) * | 2015-09-24 | 2016-01-27 | 滁州京安工贸有限责任公司 | Concrete and mortar curing agent |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107986818A (en) * | 2018-01-08 | 2018-05-04 | 中交三公局第工程有限公司 | Compound concrete curing fluid and preparation method thereof |
| CN108892536A (en) * | 2018-06-20 | 2018-11-27 | 河南阳光防水科技有限公司 | The early strong curing agent of cement |
| CN111138209A (en) * | 2020-01-15 | 2020-05-12 | 江苏奥莱特新材料股份有限公司 | Concrete external curing agent |
| CN114605858A (en) * | 2022-03-30 | 2022-06-10 | 厦门路桥翔通建材科技有限公司 | Self-crystallization permeable concrete protective coating and preparation method thereof |
| CN114605858B (en) * | 2022-03-30 | 2023-08-01 | 厦门路桥翔通建材科技有限公司 | Self-crystallization permeable concrete protective coating and preparation method thereof |
| CN115259897A (en) * | 2022-07-07 | 2022-11-01 | 山西佳维新材料股份有限公司 | Organic-inorganic composite concrete curing agent, preparation method and concrete curing method |
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Application publication date: 20170531 |
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