JP2733164B2 - Surface treatment method for cement molded products - Google Patents
Surface treatment method for cement molded productsInfo
- Publication number
- JP2733164B2 JP2733164B2 JP4067729A JP6772992A JP2733164B2 JP 2733164 B2 JP2733164 B2 JP 2733164B2 JP 4067729 A JP4067729 A JP 4067729A JP 6772992 A JP6772992 A JP 6772992A JP 2733164 B2 JP2733164 B2 JP 2733164B2
- Authority
- JP
- Japan
- Prior art keywords
- cement molded
- humic acid
- molded article
- surface treatment
- cement
- 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.)
- Expired - Fee Related
Links
- 239000004568 cement Substances 0.000 title claims description 32
- 238000000034 method Methods 0.000 title claims description 5
- 238000004381 surface treatment Methods 0.000 title description 7
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims description 23
- 239000004021 humic acid Substances 0.000 claims description 23
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 238000006253 efflorescence Methods 0.000 description 8
- 206010037844 rash Diseases 0.000 description 8
- 239000000243 solution Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 230000000855 fungicidal effect Effects 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000000417 fungicide Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000012756 surface treatment agent Substances 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- C04B2111/21—Efflorescence resistance
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
- Paints Or Removers (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、石綿セメント板などセ
メント成形品の表面処理法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface treatment method for a cement molded product such as an asbestos cement board.
【０００２】[0002]
【従来の技術】セメント成形品の表面に耐候性や耐エフ
ロレッセンス性などを付与するために、セメント成形品
の表面を表面処理することがおこなわれている。この表
面処理はセメント成形品の表面にシーラーを塗布してお
こなうことが一般的であり、さらにセメント成形品の表
面には塗料を塗布して塗装がおこなわれる。2. Description of the Related Art A surface treatment of a cement molded product has been carried out in order to impart weather resistance and efflorescence resistance to the surface of the cement molded product. This surface treatment is generally performed by applying a sealer to the surface of the cement molded product, and further, a paint is applied to the surface of the cement molded product for painting.
【０００３】[0003]
【発明が解決しようとする課題】しかし、シーラーによ
るエフロレッセンス抑制のメカニズムは樹脂被膜による
物理的抑制に過ぎないために、耐エフロレッセンス性を
高める効果が十分ではなく、またシーラーの塗布の状態
やその膜厚の状態によって耐候性のバラツキが大きいと
いう問題があった。However, the mechanism of the suppression of efflorescence by the sealer is merely a physical suppression by the resin film, so that the effect of enhancing the efflorescence resistance is not sufficient, and the state of application of the sealer is not sufficient. There is a problem that the weather resistance varies greatly depending on the state of the film thickness.
【０００４】本発明は上記の点に鑑みてなされたもので
あり、安定して優れた耐候性や耐エフロレッセンス性を
与えることができ、加えて耐防黴性や耐塩害性を与える
こともでき、さらに塗膜との密着性を高めることができ
るセメント成形品の表面処理法を提供することを目的と
するものである。The present invention has been made in view of the above points, and can stably provide excellent weather resistance and efflorescence resistance, and can also provide fungicide resistance and salt damage resistance. It is an object of the present invention to provide a method for surface treatment of a cement molded article which can improve the adhesion to a coating film.
【０００５】[0005]
【課題を解決するための手段】本発明に係るセメント成
形品の表面処理法は、セメント成形品の表面に、フミン
酸水溶液を塗布することを特徴とするものである。The surface treatment method for a cement molded article according to the present invention is characterized by applying an aqueous humic acid solution to the surface of the cement molded article.
【０００６】[0006]
【作用】フミン酸はセメント成形品の表面に反応して吸
着し、安定して各種の特性をセメント成形品の表面に付
与することができる。The humic acid reacts and is adsorbed on the surface of a cement molded article, and can stably impart various properties to the surface of the cement molded article.
【０００７】[0007]
【実施例】以下本発明を実施例によって詳述する。フミ
ン酸は、炭水化物を含むタンパク質を酸で加水分解した
り、あるいは炭化度の低い石炭あるいは土壌からアルカ
リ溶液抽出したりして得られるものであり、酸に不溶、
アルカリに可溶の多塩基性の不定型高分子有機酸であ
る。このフミン酸は０．１〜２０重量％濃度に希釈して
フミン酸水溶液として使用するものであり、フミン酸を
希釈するために用いる希釈水としては、アルカリ水を用
いるのが好ましい。The present invention will be described below in detail with reference to examples. Humic acid is obtained by hydrolyzing proteins containing carbohydrates with an acid, or extracting an alkaline solution from coal or soil with low carbonization, and is insoluble in acid,
It is a polybasic amorphous organic acid that is soluble in alkali. This humic acid is used as an aqueous solution of humic acid after being diluted to a concentration of 0.1 to 20% by weight, and alkaline water is preferably used as a dilution water for diluting humic acid.
【０００８】そして、セメント二次製品の養生硬化を完
了して得られるセメント成形品の表面に上記のフミン酸
水溶液を塗布することによって、セメント成形品を表面
処理することができるものである。フミン酸水溶液の塗
布は、スプレー等によっておこなうことができる他、フ
ミン酸水溶液にセメント成形品を浸漬して含浸させるよ
うにすることによってもおこなうことができる。[0008] Then, by applying the aqueous humic acid solution to the surface of the cement molded product obtained by completing the curing and curing of the cement secondary product, the surface of the cement molded product can be treated. The application of the aqueous humic acid solution can be performed by spraying or the like, or can be performed by immersing the cement molded article in the aqueous humic acid solution to impregnate it.
【０００９】このようにセメント成形品の表面にフミン
酸水溶液を塗布すると、セメント成形品の表面のＣａ2+
イオンにフミン酸が化学反応してキレート結合すること
によって、セメント成形品の表面にフミン酸が吸着さ
れ、セメント成形品の表面をフミン酸で改質することが
できるものである。そしてエフロレッセンスの主成分で
あるＣａ2+イオンにこのようにフミン酸が結合している
ために、エフロレッセンスを抑制して耐エフロレッセン
ス性を付与することができるものであり、またフミン酸
は紫外線を吸収する特性を有するために、紫外線がセメ
ント成形品に作用することをフミン酸で防いで耐候性を
付与することができるものである。さらにフミン酸は防
黴効果や耐塩害効果が優れており、セメント成形品に耐
黴性や耐塩害性を付与することができるものである。こ
こで、フミン酸は上記のようにセメント成形品の表面に
吸着されているために、これらの特性を安定して付与す
ることができるものである。As described above, when the aqueous humic acid solution is applied to the surface of the cement molded article, the Ca 2+ on the surface of the cement molded article is reduced.
By chemically reacting humic acid with the ions to form a chelate bond, humic acid is adsorbed on the surface of the cement molded article, and the surface of the cement molded article can be modified with humic acid. And, since humic acid is bound to Ca 2+ ion which is a main component of efflorescence as described above, efflorescence can be suppressed and efflorescence resistance can be imparted. Since it has the property of absorbing ultraviolet rays, it can prevent weathering of ultraviolet rays from acting on a cement molded article with humic acid, thereby providing weather resistance. Further, humic acid is excellent in fungicidal effect and salt damage resistance, and can impart mold resistance and salt damage resistance to a cement molded product. Here, since humic acid is adsorbed on the surface of the cement molded article as described above, it is possible to stably impart these properties.
【００１０】上記のようにセメント成形品の表面にフミ
ン酸水溶液を塗布して乾燥させた後、セメント成形品の
表面に塗料を塗布して塗装仕上げする。このとき、セメ
ント成形品の表面にはフミン酸が吸着されているため
に、フミン酸によって塗料、特に水溶性塗料の塗膜のセ
メント成形品への密着性を高めることができるものであ
る。このように、フミン酸によって各種の特性をセメン
ト成形品の表面に付与することがきるものであり、多数
種の表面処理剤を用いるような必要がなくなって、表面
処理のコストを安価にすることができるものである。[0010] As described above, a humic acid aqueous solution is applied to the surface of the cement molded article and dried, and then a paint is applied to the surface of the cement molded article to finish the coating. At this time, since humic acid is adsorbed on the surface of the cement molded product, the adhesiveness of the coating film of a paint, particularly a water-soluble paint, to the cement molded product can be enhanced by the humic acid. As described above, various properties can be imparted to the surface of the cement molded article by humic acid, and there is no need to use many types of surface treatment agents, and the cost of surface treatment can be reduced. Can be done.
【００１１】[0011]
【発明の効果】上記のように本発明は、セメント成形品
の表面にフミン酸水溶液を塗布して処理をおこなうよう
にしたので、フミン酸はセメント成形品の表面に吸着し
てセメント成形品の表面を改質することができ、優れた
耐候性や耐エフロレッセンス性、耐防黴性や耐塩害性、
さらに塗膜との密着性など各種の特性を安定してセメン
ト成形品の表面に付与することができるものである。As described above, in the present invention, the treatment is performed by applying an aqueous solution of humic acid to the surface of the cement molded product. Surface can be modified, excellent weather resistance and efflorescence resistance, fungicide resistance and salt damage resistance,
Further, various properties such as adhesion to the coating film can be stably imparted to the surface of the cement molded article.
Claims (1)
液を塗布することを特徴とするセメント成形品の表面処
理法。1. A method for treating a surface of a cement molded article, which comprises applying an aqueous solution of humic acid to the surface of the cement molded article.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4067729A JP2733164B2 (en) | 1992-03-26 | 1992-03-26 | Surface treatment method for cement molded products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4067729A JP2733164B2 (en) | 1992-03-26 | 1992-03-26 | Surface treatment method for cement molded products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05270948A JPH05270948A (en) | 1993-10-19 |
| JP2733164B2 true JP2733164B2 (en) | 1998-03-30 |
Family
ID=13353341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4067729A Expired - Fee Related JP2733164B2 (en) | 1992-03-26 | 1992-03-26 | Surface treatment method for cement molded products |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2733164B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4859287A (en) * | 1984-11-22 | 1989-08-22 | Kawasaki Steel Corporation | Method for producing colored stainless steel stock |
-
1992
- 1992-03-26 JP JP4067729A patent/JP2733164B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05270948A (en) | 1993-10-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19971209 |
|
| LAPS | Cancellation because of no payment of annual fees |