CN107903084A - The clear-water concrete protective agent and its application process of a kind of high-weatherability - Google Patents
The clear-water concrete protective agent and its application process of a kind of high-weatherability Download PDFInfo
- Publication number
- CN107903084A CN107903084A CN201711144566.1A CN201711144566A CN107903084A CN 107903084 A CN107903084 A CN 107903084A CN 201711144566 A CN201711144566 A CN 201711144566A CN 107903084 A CN107903084 A CN 107903084A
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- CN
- China
- Prior art keywords
- clear
- protective agent
- water concrete
- weatherability
- concrete protective
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/60—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only artificial stone
- C04B41/61—Coating or impregnation
- C04B41/65—Coating or impregnation with inorganic materials
- C04B41/68—Silicic acid; Silicates
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
- C04B41/5041—Titanium oxide or titanates
Abstract
The invention discloses a kind of clear-water concrete protective agent of high-weatherability, it includes the dispensing of following mass content：20%~45% compound inorganic stuffing, 15~30% organic silicon emulsions, 10~30% silicone acrylic emulsions, 1~3% thickener, 0.2~1.5% levelling agent and 0.5~2.0% preservative, the compound inorganic stuffing is sericite, calcium carbonate, kaolin, hydrophilic fumed silica, the compound of titanium dioxide.The clear-water concrete protective agent of the present invention is applied in the protection of clear-water concrete, has waterproof and breathable effect good, UV resistant irradiates, and can significantly improve the durability of clear-water concrete, is not in the phenomenon of discoloration and sag of protecting coating.Moreover, the production equipment of the present invention is simple, no coupling product produces, small environmentally protective without post processing, energy consumption.
Description
Technical field
The present invention relates to clear-water concrete protective agent field.
Background technology
With greatly developing for infrastructure, concrete has played more and more important in harbour, harbour, urban road
Effect.And recently as the fast development of modern concrete technology, clear-water concrete is subject to increasingly with its concrete true qualities
More concerns.But concrete is because of the characteristic of its material structure, and hygroscopic, the meeting on surface causes and goes mouldy because of the attachment of microorganism
And color is changed, the true qualities of clear-water concrete are lost, simultaneously as the entrance of moisture, the mechanical strength of concrete also can
Change.Therefore need to coat a kind of protective agent on the surface of clear-water concrete, reduce the water absorption rate of clear-water concrete, it is resistance to improve its
Long property.
A kind of clear-water concrete durability protection disclosed in the patent application document of Publication No. CN106193338A is applied
In work method, by repeatedly spraying EvercreteDPS, sealed-for-life layer is formed in concrete surface, although ensure that concrete
Water proofing property, but seriously affected its gas permeability, be easy to cause the deformation of protective film, influence its durability.
A kind of water dispenser permeable concrete protective agent disclosed in the patent application document of Publication No. CN103214265B
Preparation method, this protective agent is mainly to penetrate into the inside of concrete, and embolism is formed in the capillary channel of concrete,
Its internal voids is filled up, so as to prevent the entrance of moisture, but the weatherability of concrete can be caused poor and influence its permeability.
Therefore the technology of preparing of existing clear-water concrete protective agent needs further research and development.
The content of the invention
It is an object of the invention to overcome existing clear-water concrete protected from environmental, water suction, discoloration, durability reduce
The shortcomings that a kind of clear-water concrete protective agent of high-weatherability and preparation method thereof is provided.
It is a further object of the present invention to provide the purposes of the clear-water concrete protective agent of above-mentioned high-weatherability.
The purpose of the present invention is achieved through the following technical solutions：A kind of clear-water concrete protective agent of high-weatherability, it is special
Sign is the dispensing for including following mass content：20%~45% compound inorganic stuffing, 15~30% organic silicon emulsions, 10~
30% silicone acrylic emulsion, 1~3% thickener, 0.2~1.5% levelling agent and 0.5~2.0% preservative, the compound nothing
Machine filler is sericite, calcium carbonate, kaolin, hydrophilic fumed silica, the compound of titanium dioxide.
The clear-water concrete protective agent of the high-weatherability is made by following steps：By respectively matching somebody with somebody for compound inorganic stuffing
Material premixing uniformly after be added to the water using rotating speed as 3000~5000 revs/min of high speed dispersion 1~3 it is small when, then by scattered speed
Degree is turned down to 200~400 revs/min, is sequentially added organic silicon emulsion, silicone acrylic emulsion, thickener, levelling agent and preservative, is stirred
Mixing makes to be uniformly mixed, and disperses stirring 55~65 minutes, that is, obtains the clear-water concrete protective agent of high-weatherability.
Organic silicon emulsion is nonionic silane-siloxanes lotion.
The thickener is methylcellulose, hydroxypropyl methyl cellulose, sodium carboxymethylcellulose, hydroxyethyl cellulose
One or more of mixing.
The levelling agent is 203 or 2020.
The preservative is Tao Shi Long Shaao fine jades.
The compound inorganic stuffing by quality accounting be 12%~20% sericite, 40%~60% calcium carbonate,
5%~12% kaolin, 10%~25% hydrophilic fumed silica and 5%~15% titanium dioxide composition.
Invention additionally discloses the application process of the clear-water concrete protective agent of a kind of as above any high-weatherability, its
It is coated on pouring and the drying concrete surface of form removal by the clear-water concrete protective agent of the high-weatherability.
The clear-water concrete protective agent of the high-weatherability of the present invention is pre- by the filler of various not same-actions by high speed dispersion
It is scattered, then with lotion, not the auxiliary agent of same-action cmpletely stir it is compatible together with realize, it has the following advantages that：
Infiltration and hydrophobicity and the easy film forming of acrylate polymer emulsion and ageing-resistant spy of the present invention based on organosilicon
Property, with reference to the shading ageing-resistant performance of other fillers, high durable clear-water concrete protective agent is prepared, disclosure satisfy that modern clear water
The requirement of concrete extended protection.The clear-water concrete protective agent of the present invention is applied in the protection of clear-water concrete, is had
Waterproof and breathable effect is good, and UV resistant irradiation, can significantly improve the durability of clear-water concrete, be not in discoloration and guarantor
The phenomenon that sheath comes off.Moreover, the production equipment of the present invention is simple, no coupling product produces, without post processing, the small green ring of energy consumption
Protect.
Embodiment
The present invention is described in further detail with reference to example, but the embodiment invented is not limited only to this.
Embodiment 1
A kind of high durable clear-water concrete protective agent, is prepared by following methods：
It is added to the water the high speed dispersion 40 minutes with 3500 revs/min after compound inorganic stuffing (200g) is mixed, then
Rate of dispersion is reduced to 250 revs/min, sequentially adds organic silicon emulsion BS45 (250g), silicone acrylic emulsion A-79 (B)
(280g), thickener hydroxypropyl methyl cellulose (10g), levelling agent 203 (8g), preservative (11g) etc., stirring 20 minutes, i.e.,
It can obtain the clear-water concrete protective agent of high-weatherability.
Compound inorganic stuffing proportioning presses table 1 below：
Table 1
| Title | Shared mass ratio (%) |
| Sericite | 15 |
| Calcium carbonate | 50 |
| Kaolin | 10 |
| Titanium dioxide | 5 |
| 200 hydrophilic fumed silicas of AEROSIL | 20 |
Performance test
Surface of the clear-water concrete protective agent of high-weatherability coated in 28 days ages and dry tack free concrete will be obtained,
Water absorption rate (48h), 91% is reduced compared with benchmark test specimen；Resistance to artificial climate (6000h) is apparent intact；Water resistance (192h) is apparent complete
It is good；Contact angle is 129 °, and contact angle is 106 ° to resistance to artificial climate (6000h) afterwards.Static 72h has sedimentation phenomenon, after stirring
Disperse again.
Embodiment 2
A kind of high durable clear-water concrete protective agent, is prepared by following methods：
It is added to the water after compound inorganic stuffing (260g) is mixed and is disperseed 40 minutes with 4200 revs/min at a high speed, is then dropped
Low rate of dispersion, 300 revs/min, sequentially add organic silicon emulsion BS43N (200g), silicone acrylic emulsion A-79 (B) (240g),
Thickener hydroxypropyl methyl cellulose (12g), levelling agent 203 (10g), preservative (9g) etc., are stirred 20 minutes, you can obtain height
The clear-water concrete protective agent of weatherability.
Performance test
Coated in concrete surface, water absorption rate (48h), 86% is reduced compared with benchmark test specimen；Resistance to artificial climate (5500h) is apparent
It is intact；Water resistance (192h) is apparent intact；Contact angle is 121 °, and contact angle is 98 ° to resistance to artificial climate (5500h) afterwards.Static 72h
There is sedimentation phenomenon, can disperse again after stirring.
Compound inorganic stuffing proportioning presses table 2 below：
Table 2
| Title | Shared mass ratio (%) |
| Sericite | 13 |
| Calcium carbonate | 52 |
| Kaolin | 8 |
| Titanium dioxide | 9 |
| 200 hydrophilic fumed silicas of AEROSIL | 18 |
Embodiment 3
A kind of high durable clear-water concrete protective agent, is prepared by following methods：
It is added to the water the high speed dispersion 40 minutes with 5000 revs/min after compound inorganic stuffing (255g) is mixed, then
Rate of dispersion is reduced to 350 revs/min, sequentially adds organic silicon emulsion BS45 (260g), silicone acrylic emulsion A-79 (B)
(320g), thickener hydroxyethyl cellulose (16g), levelling agent 2020 (13g), preservative (12g) etc., are stirred 20 minutes, you can
Obtain the clear-water concrete protective agent of high-weatherability.
Performance test
Coated in concrete surface, water absorption rate (48h), 92.8% is reduced compared with benchmark test specimen；Resistance to artificial climate (6000h) table
See intact；Water resistance (192h) is apparent intact；Contact angle is 132 °, and contact angle is 107 ° to resistance to artificial climate (6000h) afterwards.It is static
72h has sedimentation phenomenon, can disperse again after stirring.
Compound inorganic stuffing proportioning presses table 3 below：
Table 3
| Title | Shared mass ratio (%) |
| Sericite | 18 |
| Calcium carbonate | 42 |
| Kaolin | 9 |
| Titanium dioxide | 8 |
| 200 hydrophilic fumed silicas of AEROSIL | 23 |
Case study on implementation 4
A kind of high durable clear-water concrete protective agent, is prepared by following methods：
It is added to the water high speed dispersion 40 minutes after compound inorganic stuffing (210g) is mixed, then reduces rate of dispersion, then
Sequentially add organic silicon emulsion BS43N (240g), silicone acrylic emulsion A-79 (B) (260g), thickener hydroxyethyl cellulose (11g),
Levelling agent 2020 (9g), preservative (10g) etc., are stirred 20 minutes, you can obtain the clear-water concrete protective agent of high-weatherability.
Compound inorganic stuffing proportioning presses table 4 below：
Table 4
| Title | Shared mass ratio (%) |
| Sericite | 19 |
| Calcium carbonate | 56 |
| Kaolin | 5 |
| Titanium dioxide | 10 |
| 200 hydrophilic fumed silicas of AEROSIL | 10 |
Performance test
Coated in concrete surface, water absorption rate (48h), 90% is reduced compared with benchmark test specimen；Resistance to artificial climate (6500h) is apparent
It is intact；Water resistance (192h) is apparent intact；Contact angle is 130 °, and contact angle is 104 ° to resistance to artificial climate (6500h) afterwards.It is static
72h has sedimentation phenomenon, can disperse again after stirring.
Claims (8)
1. a kind of clear-water concrete protective agent of high-weatherability, it is characterised in that include the dispensing of following mass content：20%~
45% compound inorganic stuffing, 15~30% organic silicon emulsions, 10~30% silicone acrylic emulsions, 1~3% thickener, 0.2~
1.5% levelling agent and 0.5~2.0% preservative, the compound inorganic stuffing is sericite, calcium carbonate, kaolin, hydrophilic
Property aerosil, the compound of titanium dioxide.
2. the clear-water concrete protective agent of high-weatherability according to claim 1, it is characterised in that the high-weatherability
Clear-water concrete protective agent be made by following steps：It will be added to the water after each dispensing premixing uniformly of compound inorganic stuffing
Using rotating speed as 3000~5000 revs/min of high speed dispersion 1~3 it is small when, then rate of dispersion is turned down to 200~400 revs/min,
Organic silicon emulsion, silicone acrylic emulsion, thickener, levelling agent and preservative are sequentially added, stirring makes to be uniformly mixed, and disperses stirring 55
~65 minutes, that is, obtain the clear-water concrete protective agent of high-weatherability.
3. the clear-water concrete protective agent of high-weatherability according to claim 1, it is characterised in that：Organic silicon emulsion is non-
Ion silane-siloxanes lotion.
4. the clear-water concrete protective agent of high-weatherability according to claim 1, it is characterised in that：The thickener is
One or more of mixing of methylcellulose, hydroxypropyl methyl cellulose, sodium carboxymethylcellulose, hydroxyethyl cellulose.
5. the clear-water concrete protective agent of high-weatherability according to claim 1, it is characterised in that：The levelling agent is
203 or 2020.
6. the clear-water concrete protective agent of high-weatherability according to claim 1, it is characterised in that：The preservative is
Tao Shi Long Shaao fine jades.
7. the clear-water concrete protective agent of high-weatherability according to claim 1, it is characterised in that：The composite inorganic
Filler is 12%~20% sericite, 40%~60% calcium carbonate, 5%~12% kaolin, 10% by quality accounting
~25% hydrophilic fumed silica and 5%~15% titanium dioxide composition.
8. a kind of application process of the clear-water concrete protective agent of any high-weatherability of claim 1~7, its feature exist
In：By the clear-water concrete protective agent of the high-weatherability coated on pouring and the drying concrete surface of form removal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711144566.1A CN107903084A (en) | 2017-11-17 | 2017-11-17 | The clear-water concrete protective agent and its application process of a kind of high-weatherability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711144566.1A CN107903084A (en) | 2017-11-17 | 2017-11-17 | The clear-water concrete protective agent and its application process of a kind of high-weatherability |
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| Publication Number | Publication Date |
|---|---|
| CN107903084A true CN107903084A (en) | 2018-04-13 |
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ID=61845852
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711144566.1A Pending CN107903084A (en) | 2017-11-17 | 2017-11-17 | The clear-water concrete protective agent and its application process of a kind of high-weatherability |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824379A (en) * | 2019-01-12 | 2019-05-31 | 沈继锋 | A kind of preparation method of air permeable waterproof clear-water concrete protective agent |
| CN114316707A (en) * | 2022-01-13 | 2022-04-12 | 中交四航工程研究院有限公司 | Multifunctional bare concrete surface protection coating material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104086220A (en) * | 2014-06-30 | 2014-10-08 | 北京市蓝宝新技术有限公司 | Clean water concrete surface layer repairing protecting agent and preparation method thereof |
| KR101630269B1 (en) * | 2016-01-25 | 2016-07-06 | 주식회사 유버스 | Mortar composition for repairing and reinforcing concrete structures, and method of repairing and reinforcing concrete structures using the same |
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2017
- 2017-11-17 CN CN201711144566.1A patent/CN107903084A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104086220A (en) * | 2014-06-30 | 2014-10-08 | 北京市蓝宝新技术有限公司 | Clean water concrete surface layer repairing protecting agent and preparation method thereof |
| KR101630269B1 (en) * | 2016-01-25 | 2016-07-06 | 주식회사 유버스 | Mortar composition for repairing and reinforcing concrete structures, and method of repairing and reinforcing concrete structures using the same |
Non-Patent Citations (2)
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| 陈泽森 等: "《水性建筑涂料生产技术》", 31 January 2007, 中国纺织出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109824379A (en) * | 2019-01-12 | 2019-05-31 | 沈继锋 | A kind of preparation method of air permeable waterproof clear-water concrete protective agent |
| CN114316707A (en) * | 2022-01-13 | 2022-04-12 | 中交四航工程研究院有限公司 | Multifunctional bare concrete surface protection coating material and preparation method thereof |
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Application publication date: 20180413 |