CN105601328A - Method for enhancing hydrophobic property of foam concrete by using fluorocarbon resin emulsion - Google Patents
Method for enhancing hydrophobic property of foam concrete by using fluorocarbon resin emulsion Download PDFInfo
- Publication number
- CN105601328A CN105601328A CN201510964659.3A CN201510964659A CN105601328A CN 105601328 A CN105601328 A CN 105601328A CN 201510964659 A CN201510964659 A CN 201510964659A CN 105601328 A CN105601328 A CN 105601328A
- Authority
- CN
- China
- Prior art keywords
- foam concrete
- fluorocarbon resin
- resin emulsion
- water absorption
- drying
- Prior art date
- 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.)
- Pending
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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
- C04B41/62—Coating or impregnation with organic materials
- C04B41/63—Macromolecular compounds
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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
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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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
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—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 organic materials
- C04B41/48—Macromolecular compounds
- C04B41/488—Other macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
- Building Environments (AREA)
Abstract
The invention relates to the technical field of building materials, and aims to provide a method for enhancing hydrophobic property of a foam concrete by using a fluorocarbon resin emulsion. The method is as below: immersing the foam concrete in the fluorocarbon resin emulsion for 10-30 min, taking out the foam concrete, drying at 80-120 DEG C for 4-8 h, and naturally cooling to room temperature. Distinguished from the traditional practice of adding a water repellent during the preparation of the foam concrete, the method takes advantage of strongly hydrophobic fluorine resin to reinforce the molded foam concrete product and avoids the adverse influences on compressive strength, dry density and other properties of the foam concrete. The method uses the processes of impregnation and drying, and can effectively reduce the water absorption of the foam concrete (saturated water absorption decreased by 50-90% compared with untreated products), thereby improving the thermal insulation properties, frost resistance and workability of foam concrete during use.
Description
Technical field
The invention belongs to building materials technology field, be specifically related to utilize fluorocarbon resin emulsion reinforced foam concrete hydrophobicity performanceMethod.
Background technology
Foam concrete has the advantages such as lightweight, heat-insulation and heat-preservation, fire prevention, easy construction, the feature of environmental protection be good, is widely used in and buildsBuild the engineering such as exterior-wall heat insulation, fire-blocking belt. But because it has compared with high water absorbing capacity, easily cause thermal conductivity factor to rise, protectTemperature hydraulic performance decline and surface are prone to the bad phenomenon such as cracking, hollowing while smearing mortar, therefore need foam concrete to carry outHydrophobic processing. At present, the main method that is used for improving foam concrete hydrophobicity performance is in foam concrete preparation processAdd hydrophober, but hydrophober can have a negative impact to performances such as foam concrete compression strength, dry densities, hate simultaneouslyWater-based can increase neither be clearly.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes deficiency of the prior art, provides one to utilize fluorocarbon resin emulsionThe method of reinforced foam concrete hydrophobicity performance.
For addressing the above problem, solution of the present invention is:
A kind of method of utilizing fluorocarbon resin emulsion reinforced foam concrete hydrophobicity performance is provided, and is that foam concrete is immersedIn fluorocarbon resin emulsion, after dipping 10～30min, take out, then drying;
Described dry referring to: dry 4～8h under 80～120 DEG C of conditions, naturally cools to room temperature after dry processing.
In the present invention, in described fluorocarbon resin, mass content >=10% of fluorine, solid content≤10%.
Compared with prior art, beneficial effect of the present invention is:
The present invention is different from the traditional method that adds hydrophober in foam concrete preparation process, changes to utilize fluororesin strongHydrophobic performance strengthens processing to the foam concrete product of moulding, avoids foam concrete compression strength, dry densityHave a negative impact etc. performance. The present invention, through dipping, the process such as dry, can effectively reduce foam concrete water absorption rate (fullWith the more untreated decline 50～90% of water absorption rate), thus improve heat-insulating property in use of foam concrete,Anti-freezing property and workability.
Detailed description of the invention
In the present invention, fluorocarbon resin emulsion used is commercial product, the product index of fluorocarbon resin emulsion is had no special requirements,Can in use select its specific product model according to actual hydrophobicity performance situation of change.
Embodiment 1
Foam concrete is immersed to (mass content 10% of fluorine, solid content 10%) in fluorocarbon resin emulsion, 10minRear taking-up, in 80 DEG C of environment, dry 8h, naturally cools to room temperature. After testing, through strengthening the foam concrete of processing,The more untreated foam concrete of its saturated water absorption declines 50%.
Embodiment 2
Foam concrete is immersed to (mass content 15% of fluorine, solid content 8%) in fluorocarbon resin emulsion, after 20minTake out, in 120 DEG C of environment, dry 4h, naturally cools to room temperature. After testing, through strengthening the foam concrete of processing, itsThe more untreated foam concrete of saturated water absorption declines 70%.
Embodiment 3
Foam concrete is immersed to (mass content 20% of fluorine, solid content 8%) in fluorocarbon resin emulsion, after 30minTake out, in 90 DEG C of environment, dry 6h, naturally cools to room temperature. After testing, through strengthening the foam concrete of processing, it is fullDecline 90% with the more untreated foam concrete of water absorption rate.
Contrast embodiment
Following comparative example, all declines maximum case-embodiment 3 as base using the saturated water absorption in above-mentioned 3 casesPlinth arranges.
Comparative example 1
" mass content 20% of fluorine " in embodiment 3 is replaced by " mass content 8% of fluorine ", and all the other are same as embodiment 3.The more untreated foam concrete of saturated water absorption declines 40%.
Comparative example 2
" solid content 8% " in embodiment 3 is replaced by " solid content 12% ", and all the other are same as embodiment 3. Saturated water absorptionUntreated foam concrete declines 50%.
Comparative example 3
Be replaced by " after 35min, taking out " by " taking out after 30min " in embodiment 3, all the other are same as embodiment 3. Saturated suctionThe more untreated foam concrete of water rate declines 70%.
Comparative example 4
Be replaced by " after 5min, taking out " by " taking out after 30min " in embodiment 3, all the other are same as embodiment 3. Saturated water suctionThe more untreated foam concrete of rate declines 35%.
Finally, it is also to be noted that, what more than enumerate is only several specific embodiments of the present invention. Obviously, thisBrightly be not limited to above embodiment, can also have many distortion. Those of ordinary skill in the art can be from disclosed by the inventionHold all distortion of directly deriving or associating, all should think protection scope of the present invention.
Claims (2)
1. the method for utilizing fluorocarbon resin emulsion reinforced foam concrete hydrophobicity performance, is characterized in that, is that foam is mixedSolidifying soil immerses in fluorocarbon resin emulsion, after dipping 10～30min, takes out, then drying;
Described dry referring to: dry 4～8h under 80～120 DEG C of conditions, naturally cools to room temperature after dry processing.
2. method according to claim 1, is characterized in that, in described fluorocarbon resin, and mass content >=10% of fluorine,Solid content≤10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510964659.3A CN105601328A (en) | 2015-12-21 | 2015-12-21 | Method for enhancing hydrophobic property of foam concrete by using fluorocarbon resin emulsion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510964659.3A CN105601328A (en) | 2015-12-21 | 2015-12-21 | Method for enhancing hydrophobic property of foam concrete by using fluorocarbon resin emulsion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105601328A true CN105601328A (en) | 2016-05-25 |
Family
ID=55981759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510964659.3A Pending CN105601328A (en) | 2015-12-21 | 2015-12-21 | Method for enhancing hydrophobic property of foam concrete by using fluorocarbon resin emulsion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105601328A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106565276A (en) * | 2016-07-20 | 2017-04-19 | 中南大学 | Enhanced foamed cement board and preparation method thereof |
| CN113563109A (en) * | 2021-08-11 | 2021-10-29 | 北部湾海洋新材料研究院 | Nano-silyl waterproof emulsion for concrete and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1470479A (en) * | 2003-06-24 | 2004-01-28 | 乔国华 | Water-repelling foamed concrete preparing method and use thereof |
| CN101085895A (en) * | 2007-06-20 | 2007-12-12 | 深圳市明远氟涂料有限公司 | Concrete transparent protecting paint |
| US20080152813A1 (en) * | 2006-12-22 | 2008-06-26 | Michael Damian Bowe | Method for treating concrete |
| CN103224742A (en) * | 2013-04-24 | 2013-07-31 | 同济大学 | Penetration type transparent concrete protection paint and preparation method thereof |
| CN103373833A (en) * | 2013-07-05 | 2013-10-30 | 燕山大学 | Preparation method of aluminum oxide-polyvinylidene fluoride-aluminum silicate ceramic fiber flame-retardant heat preservation composite material |
-
2015
- 2015-12-21 CN CN201510964659.3A patent/CN105601328A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1470479A (en) * | 2003-06-24 | 2004-01-28 | 乔国华 | Water-repelling foamed concrete preparing method and use thereof |
| US20080152813A1 (en) * | 2006-12-22 | 2008-06-26 | Michael Damian Bowe | Method for treating concrete |
| CN101085895A (en) * | 2007-06-20 | 2007-12-12 | 深圳市明远氟涂料有限公司 | Concrete transparent protecting paint |
| CN103224742A (en) * | 2013-04-24 | 2013-07-31 | 同济大学 | Penetration type transparent concrete protection paint and preparation method thereof |
| CN103373833A (en) * | 2013-07-05 | 2013-10-30 | 燕山大学 | Preparation method of aluminum oxide-polyvinylidene fluoride-aluminum silicate ceramic fiber flame-retardant heat preservation composite material |
Non-Patent Citations (1)
| Title |
|---|
| 陈宝璠编著: "《土木工程材料实用技术手册》", 31 August 2011 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106565276A (en) * | 2016-07-20 | 2017-04-19 | 中南大学 | Enhanced foamed cement board and preparation method thereof |
| CN113563109A (en) * | 2021-08-11 | 2021-10-29 | 北部湾海洋新材料研究院 | Nano-silyl waterproof emulsion for concrete and preparation method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160525 |