JPH06207469A - Surface painting method for existing structure and putty material for painting substrate used for this method - Google Patents
Surface painting method for existing structure and putty material for painting substrate used for this methodInfo
- Publication number
- JPH06207469A JPH06207469A JP200293A JP200293A JPH06207469A JP H06207469 A JPH06207469 A JP H06207469A JP 200293 A JP200293 A JP 200293A JP 200293 A JP200293 A JP 200293A JP H06207469 A JPH06207469 A JP H06207469A
- Authority
- JP
- Japan
- Prior art keywords
- putty material
- carbon fiber
- coating
- existing structure
- painting
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、既存構造物の補強工事
を行う際の表面塗装方法およびその方法に用いられる塗
装下地用パテ材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface coating method for reinforcing existing structures and a putty material for a coating base used in the method.
【０００２】[0002]
【従来の技術】従来、ＲＣ造の煙突とか高速道路の橋脚
等の既存構造物の補強工事を行うにあたって、当該補強
部分に炭素繊維を巻き付け又は接着して、強度を大幅に
増大させるようにした工法がある。ところが、このよう
に炭素繊維を用いた場合には、補強部分の表面に繊維の
凹凸部分が存在するため、その炭素繊維施工面に直接塗
装を施した場合は、繊維の凹凸部分によって外観上の美
観が損なわれてしまう。また、このことは炭素繊維を用
いない場合にあっても、下地コンクリートに凹凸部分が
存在する場合は、同様に塗装面の外観が悪化する。そこ
で、既存構造物の塗装下地をパテ材により平滑に仕上
げ、その表面に塗装を施すことにより、塗装面の外観を
向上することができる。2. Description of the Related Art Conventionally, when reinforcing construction of existing structures such as RC chimneys and expressway bridge piers, carbon fibers are wound or adhered around the reinforced portions to significantly increase the strength. There is a construction method. However, when carbon fibers are used in this manner, since there are uneven portions of the fibers on the surface of the reinforcing portion, when the carbon fiber construction surface is directly coated, the unevenness of the fibers causes The aesthetics are lost. Also, this means that even when carbon fiber is not used, the appearance of the coated surface is similarly deteriorated when the base concrete has irregularities. Therefore, the appearance of the coated surface can be improved by finishing the coating base of the existing structure with a putty material and coating the surface.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、かかる
従来の既存構造物の表面塗装方法にあっては、パテ材を
用いて塗装下地を平滑に仕上げる場合にも、このパテ材
として通常ポリマーセメントが用いられるのが一般的で
あった。ところが、パテ材としてポリマーセメントを用
いた場合は、このポリマーセメントと炭素繊維との付着
性が悪いため、パテ材の塗布作業が困難となり、作業時
間が長くなってしまうと共に、工事完了後にパテ材が炭
素繊維施工面から剥離されてしまう等の課題があった。However, in such a conventional surface coating method for existing structures, polymer cement is usually used as the putty material even when the coating base is finished smooth using the putty material. It was common to be done. However, when polymer cement is used as the putty material, the adhesiveness between the polymer cement and the carbon fiber is poor, which makes the application work of the putty material difficult and prolongs the work time. However, there was a problem that the carbon fiber was peeled off from the carbon fiber construction surface.
【０００４】そこで、本発明はかかる従来の課題に鑑み
て、炭素繊維との付着性に優れたパテ材を用いて塗装下
地を処理することにより、この塗装下地の施工作業を容
易にし、かつ、塗装面の耐久性を著しく向上することが
できる、既存構造物の表面塗装方法およびその方法に用
いられる塗装下地用パテ材を提供することを目的とす
る。In view of such conventional problems, the present invention treats the coating base with a putty material having excellent adhesion to carbon fibers, thereby facilitating the work of applying the coating base, and An object of the present invention is to provide a surface coating method for an existing structure, which can remarkably improve the durability of a coated surface, and a putty material for a coating base used in the method.
【０００５】[0005]
【課題を解決するための手段】かかる目的を達成するた
めに本発明は、既存構造物の凹凸部分に、エポキシ樹脂
接着剤と硅砂とを、単位面積当たりの重量を約２対３の
割合で調合したパテ材を充填した後、その表面を平滑に
仕上げて塗装下地とし、その表面に塗装を施す表面塗装
方法とする。In order to achieve the above object, the present invention provides an epoxy resin adhesive and silica sand on the concavo-convex portion of an existing structure in a weight ratio of about 2 to 3 per unit area. After filling the compounded putty material, the surface is finished to be a smooth coating base, and the surface is coated.
【０００６】また、かかる表面塗装方法において前記パ
テ材に、炭素繊維を短く切断したチョップドストランド
を適当量混合することが望ましい。In the surface coating method, it is desirable that the putty material is mixed with an appropriate amount of chopped strands obtained by cutting carbon fibers into short pieces.
【０００７】更に、かかる表面塗装方法に用いられる塗
装下地用パテ材を、エポキシ樹脂接着剤が約０．４４Ｋ
ｇ／ｍ2 ，硅砂が約０．５６Ｋｇ／ｍ2 ，炭素繊維チョ
ップドストランドが約３．２ｇ／ｍ2 の割合で調合する
ことが望ましい。Further, the putty material for the coating base used in such a surface coating method has an epoxy resin adhesive of about 0.44K.
It is desirable to mix g / m 2 , silica sand about 0.56 kg / m 2 , and carbon fiber chopped strands about 3.2 g / m 2 .
【０００８】[0008]
【作用】以上の構成により本発明の既存構造物の表面塗
装方法にあっては、パテ材をエポキシ樹脂接着剤と硅砂
との単位面積当たりの重量が約２対３の割合となるよう
に調合したので、炭素繊維との付着性が著しく優れたパ
テ材を得ることができる。従って、既存構造物の補強工
事に炭素繊維を用いた場合にも、この炭素繊維の表面に
形成される凹凸部分を前記パテ材で簡単に埋めることが
でき、補修工事を容易にすると共に、表面塗装の外観性
および耐久性をも大幅に向上することができる。With the above construction, in the surface coating method of the existing structure of the present invention, the putty material is mixed so that the weight per unit area of the epoxy resin adhesive and silica sand is about 2 to 3. Therefore, it is possible to obtain a putty material that is extremely excellent in adhesion to carbon fibers. Therefore, even when carbon fiber is used for the reinforcing work of the existing structure, the uneven portion formed on the surface of the carbon fiber can be easily filled with the putty material, facilitating the repair work and improving the surface. The appearance and durability of the coating can also be greatly improved.
【０００９】また、前記パテ材に炭素繊維チョップドス
トランドを混合することにより、パテ材自体の強度を大
幅に向上することができ、延いては、耐久性の更なる向
上を図ることができる。Further, by mixing carbon fiber chopped strands with the putty material, the strength of the putty material itself can be significantly improved, and further, the durability can be further improved.
【００１０】更に、かかる表面塗装方法に用いられる塗
装下地用パテ材を、エポキシ樹脂接着剤が約０．４４Ｋ
ｇ／ｍ2 ，硅砂が約０．５６Ｋｇ／ｍ2 ，炭素繊維チョ
ップドストランドが約３．２ｇ／ｍ2 の割合で調合した
ものでは、炭素繊維との付着性および強度に著しく優
れ、かつ、適当な粘性を発揮するパテ材を得ることがで
きる。Furthermore, the putty material for the coating base used in such a surface coating method has an epoxy resin adhesive of about 0.44K.
g / m 2 , silica sand of about 0.56 Kg / m 2 , and carbon fiber chopped strands of about 3.2 g / m 2 were blended at a ratio of remarkably excellent adhesion to carbon fibers and strength, and suitable. A putty material exhibiting various viscosities can be obtained.
【００１１】[0011]
【実施例】以下、本発明の実施例を添付図面を参照して
詳細に説明する。図１は本発明の一実施例を示す要部断
面図で、同図中、１０は既存構造物としてのＲＣ煙突
で、下地コンクリート１２の外側に炭素繊維面１４を固
着して補強工事が行われる。このとき、前記下地コンク
リート１２に凹凸部分１６が存在する場合は、この凹凸
部分１６に沿って前記炭素繊維面１４が形成されるた
め、この炭素繊維面１４にも同様の凹凸部分１６が形成
される。Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. FIG. 1 is a cross-sectional view of an essential part showing an embodiment of the present invention, in which 10 is an RC chimney as an existing structure, in which a carbon fiber surface 14 is fixed to the outside of a base concrete 12 for reinforcement work. Be seen. At this time, when the base concrete 12 has an uneven portion 16, the carbon fiber surface 14 is formed along the uneven portion 16, so that the carbon fiber surface 14 is also formed with the similar uneven portion 16. It
【００１２】ここで、本実施例では前記炭素繊維面１４
の表面に前記凹凸部分１６を充填するように図中梨地状
で示すパテ材１８を塗布し、このパテ材１８が硬化した
後、その表面を平滑に研磨して塗装下地２０とする。そ
して、前記塗装下地２０の表面に塗装面２２を施すこと
により、前記ＲＣ煙突１０の補強工事を完了する。Here, in this embodiment, the carbon fiber surface 14 is used.
A putty material 18 shown in a satin-like shape in the figure is applied so as to fill the uneven portion 16 on the surface of the above, and after the putty material 18 is cured, the surface thereof is polished to be a coating base 20. Then, by applying a coating surface 22 to the surface of the coating base 20, the reinforcement work of the RC chimney 10 is completed.
【００１３】前記パテ材１８は、炭素繊維との付着性に
優れたものが要求され、本実施例ではエポキシ樹脂接
着剤を０．４４Ｋｇ／ｍ2 ，７号硅砂を０．５６Ｋｇ
／ｍ2 ，炭素繊維チョップドストランドを３．２ｇ／
ｍ2 の割合で調合したものを用いる。尚、炭素繊維チョ
ップドストランドとは、炭素繊維のストランドを短く切
断したものである。The putty material 18 is required to have excellent adhesion to carbon fibers. In this embodiment, the epoxy resin adhesive is 0.44 kg / m 2 , and the No. 7 silica is 0.56 kg.
/ M 2 , 3.2 g of carbon fiber chopped strands /
A mixture prepared at a ratio of m 2 is used. The carbon fiber chopped strands are short cuts of carbon fiber strands.
【００１４】従って、本実施例では塗装下地用のパテ材
１８を、前記，，の成分をかかる割合で調合した
ことにより、炭素繊維との付着性を著しく向上できるこ
とは勿論のこと、施工性つまり適度な粘性を備えたパテ
材１８を得ることができた。このため、炭素繊維面１４
の表面に形成される凹凸部分１６に前記パテ材１８を充
填して埋める場合にも、この作業が大幅に容易になって
作業時間を短縮することができる。Therefore, in the present embodiment, by adhering the putty material 18 for the coating base to the above components in such ratios, the adhesiveness to the carbon fiber can be remarkably improved and the workability, The putty material 18 having an appropriate viscosity could be obtained. Therefore, the carbon fiber surface 14
Even when the uneven portion 16 formed on the surface of the above is filled with the putty material 18 so as to be buried, this work is significantly facilitated and the work time can be shortened.
【００１５】そして、前記パテ材１８の表面に塗装面２
２を施すに、このパテ材１８の表面が平滑に研磨されて
いることにより、塗装面２２の外観性が著しく向上す
る。また、前記パテ材１８と炭素繊維面１４との付着性
が良いことから、パテ材１８の剥離が発生せず、延いて
は、塗装面２２の耐久性をも大幅に向上することができ
る。更に、前記パテ材１８には、の炭素繊維チョップ
ドストランドが混合されていることにより、このパテ材
１８自体の強度が大幅に向上されて、塗装面２２の耐久
性の更なる向上を図ることができる。Then, the surface of the putty material 18 is coated with the coated surface 2
In step 2, since the surface of the putty material 18 is polished smoothly, the appearance of the coated surface 22 is significantly improved. In addition, since the putty material 18 and the carbon fiber surface 14 have good adhesion, the putty material 18 does not peel off, and the durability of the coated surface 22 can be greatly improved. Furthermore, since the putty material 18 is mixed with the carbon fiber chopped strands, the strength of the putty material 18 itself is significantly improved, and the durability of the coated surface 22 can be further improved. it can.
【００１６】尚、前記パテ材１８としては、炭素繊維と
の付着性を向上するという目的では、少なくとも前記
のエポキシ樹脂接着剤との硅砂とが所定割合をもって
調合されておれば良い。また、パテ材１８の前記各成分
は前記調合割合に限ること無く、その近傍の割合で調合
しても略同様の機能を達成できることは勿論である。図
２は本発明の他の実施例を示し、前記実施例と同一構成
部分に同一符号を付して重複する説明を省略して述べ
る。この実施例では下地コンクリート１２の外側に炭素
繊維面１４を固着し、更にこの炭素繊維面１４の外側に
ＣＦ（炭素繊維）ストランド３０を巻き付けて、補強工
事部分の強度を更に向上させるようにしたものである。As the putty material 18, at least the above-mentioned epoxy resin adhesive and silica sand may be mixed at a predetermined ratio for the purpose of improving the adhesion to the carbon fiber. Further, it goes without saying that the respective components of the putty material 18 are not limited to the above-mentioned mixing ratio, and substantially the same function can be achieved even if the mixing ratio is in the vicinity thereof. FIG. 2 shows another embodiment of the present invention, in which the same components as those in the above-mentioned embodiment are designated by the same reference numerals, and a duplicate description will be omitted. In this embodiment, the carbon fiber surface 14 is fixed to the outside of the base concrete 12, and the CF (carbon fiber) strand 30 is wound around the outside of the carbon fiber surface 14 to further improve the strength of the reinforcing work portion. It is a thing.
【００１７】即ち、前記ＣＦストランド３０を巻き付け
た際に、このＣＦストランド３０によって凹凸部分１６
ａが形成されるが、前記実施例と同様に前記炭素繊維面
１４およびＣＦストランド３０の外側に、前記実施例に
示したパテ材１８を塗布して凹凸部分１６ａを埋め、更
に、その表面を平滑に研磨することにより、塗装面２２
を施した場合の外観性および耐久性を大幅に向上するこ
とができる。That is, when the CF strand 30 is wound, the uneven portion 16 is formed by the CF strand 30.
Although a is formed, the putty material 18 shown in the above embodiment is applied to the outside of the carbon fiber surface 14 and the CF strand 30 as in the above embodiment to fill the uneven portion 16a, and the surface thereof is further By smooth polishing, the coated surface 22
Appearance and durability when subjected to can be significantly improved.
【００１８】尚、上述した各実施例ではパテ材１８が炭
素繊維との付着性が良いことから、炭素繊維面１４若し
くはＣＦストランド３０の凹凸部分１６，１６ａを埋め
る場合を開示したが、このように炭素繊維を用いない下
地コンクリート１２の表面に塗装面２２を施す場合にあ
っても、前記パテ材１８を塗装下地用として塗布できる
ことはいうまでもない。また、本実施例はＲＣ煙突１０
の補強工事に例をとって説明したが、このＲＣ煙突に限
ること無く、橋脚若しくはその他のコンクリート構造物
にも本発明を適用できることは勿論である。In each of the embodiments described above, since the putty material 18 has good adhesiveness to the carbon fiber, the case where the carbon fiber surface 14 or the uneven portions 16 and 16a of the CF strand 30 are filled has been disclosed. Needless to say, the putty material 18 can be applied as a coating base even when the coating surface 22 is applied to the surface of the base concrete 12 that does not use carbon fibers. In addition, this embodiment uses the RC chimney 10
However, it is needless to say that the present invention can be applied not only to the RC chimney but also to a pier or other concrete structure.
【００１９】[0019]
【発明の効果】以上説明したように、本発明の請求項１
に示す既存構造物の表面塗装方法にあっては、エポキシ
樹脂接着剤と硅砂との単位面積当たりの重量を約２対３
の割合で調合したものをパテ材とし、このパテ材によっ
て既存構造物の凹凸部分を充填するようにしたので、既
存構造物の補強工事に炭素繊維を用いた場合にも、この
炭素繊維とパテ材との付着性が良いことから、平滑に仕
上げたパテ材表面に施す塗装の外観性を著しく向上でき
ると共に、その耐久性をも大幅に向上することができ
る。As described above, according to the first aspect of the present invention.
In the surface coating method of the existing structure shown in, the weight per unit area of the epoxy resin adhesive and silica sand is about 2: 3.
Since the putty material was prepared by mixing the carbon fiber and the putty material, the uneven portion of the existing structure was filled with this putty material. Since the adhesiveness with the material is good, the appearance of the coating applied to the surface of the putty material that has been finished to be smooth can be remarkably improved, and the durability thereof can also be significantly improved.
【００２０】また、本発明の請求項２にあっては、前記
パテ材に炭素繊維チョップドストランドを混合したこと
により、パテ材自体の強度を大幅に向上し、延いては、
耐久性の更なる向上を図ることができる。According to the second aspect of the present invention, by mixing the putty material with carbon fiber chopped strands, the strength of the putty material itself is significantly improved, and
The durability can be further improved.
【００２１】更に、本発明の請求項３に示す既存構造物
の表面塗装方法に用いられる塗装下地用パテ材は、エポ
キシ樹脂接着剤が約０．４４Ｋｇ／ｍ2 ，硅砂が約０．
５６Ｋｇ／ｍ2 ，炭素繊維チョップドストランドが約
３．２ｇ／ｍ2 の割合で調合したので、炭素繊維との付
着性および強度に著しく優れたパテ材を得ることができ
ると共に、適当な粘土をもって施工性の大幅な向上を図
り、補強工事の作業性を更に向上することができるとい
う各種優れた効果を奏する。Furthermore, the putty material for the coating base used in the surface coating method of the existing structure according to claim 3 of the present invention has an epoxy resin adhesive of about 0.44 Kg / m 2 and silica sand of about 0.
56Kg / m 2 and carbon fiber chopped strands were mixed at a ratio of about 3.2g / m 2 , so it is possible to obtain a putty material that is remarkably excellent in adhesiveness to carbon fibers and strength, and is applied with suitable clay. It has various excellent effects that the workability of the reinforcing work can be further improved by significantly improving the workability.
【図１】本発明の一実施例を示す要部断面図である。FIG. 1 is a sectional view of an essential part showing an embodiment of the present invention.
【図２】本発明の他の実施例を示す要部断面図である。FIG. 2 is a cross-sectional view of an essential part showing another embodiment of the present invention.
１０ ＲＣ煙突（既存構造物） １２ 下地コン
クリート １４炭素繊維面 １６，１６ａ
凹凸部分 １８ パテ材 ２０ 塗装下地 ２２ 塗装面 ３０ ＣＦスト
ランド10 RC chimney (existing structure) 12 Base concrete 14 Carbon fiber surface 16, 16a
Concavo-convex part 18 Putty material 20 Coating base 22 Coating surface 30 CF Strand
Claims (3)
接着剤と硅砂とを、単位面積当たりの重量を約２対３の
割合で調合したパテ材を充填した後、その表面を平滑に
仕上げて塗装下地とし、その表面に塗装を施すことを特
徴とする既存構造物の表面塗装方法。1. An uneven surface of an existing structure is filled with a putty material prepared by mixing an epoxy resin adhesive and silica sand in a weight ratio of about 2 to 3 per unit area, and then finishing the surface smoothly. A surface coating method for existing structures, characterized by applying a coating to the surface of the structure and then coating the surface.
チョップドストランドを適当量混合したことを特徴とす
る請求項１に記載の既存構造物の表面塗装方法。2. The surface coating method for an existing structure according to claim 1, wherein an appropriate amount of chopped strands obtained by cutting carbon fibers into the putty material is mixed with the putty material.
るパテ材を、エポキシ樹脂接着剤が約０．４４Ｋｇ／ｍ
2 ，硅砂が約０．５６Ｋｇ／ｍ2 ，炭素繊維チョップド
ストランドが約３．２ｇ／ｍ2 の割合で調合したことを
特徴とする既存構造物の表面塗装方法に用いられる塗装
下地用パテ材。3. A putty material used as a coating base for surface coating of an existing structure, wherein an epoxy resin adhesive is about 0.44 Kg / m 2.
2. A putty material for a coating base used in a surface coating method for an existing structure, characterized in that silica sand is blended at a rate of about 0.56 Kg / m 2 , and carbon fiber chopped strands is blended at a rate of about 3.2 g / m 2 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP200293A JP2856013B2 (en) | 1993-01-08 | 1993-01-08 | Surface coating method for existing structures and putty material for coating base used in the method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP200293A JP2856013B2 (en) | 1993-01-08 | 1993-01-08 | Surface coating method for existing structures and putty material for coating base used in the method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06207469A true JPH06207469A (en) | 1994-07-26 |
| JP2856013B2 JP2856013B2 (en) | 1999-02-10 |
Family
ID=11517214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP200293A Expired - Fee Related JP2856013B2 (en) | 1993-01-08 | 1993-01-08 | Surface coating method for existing structures and putty material for coating base used in the method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2856013B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010052155A (en) * | 2008-08-26 | 2010-03-11 | Brother Ind Ltd | Exposure apparatus |
| CN102493673A (en) * | 2011-12-01 | 2012-06-13 | 杭州岩土工程有限公司 | Method for reinforcing epoxy coating used on building surfaces |
| CN103470066A (en) * | 2013-09-13 | 2013-12-25 | 郑州长发电子科技有限公司 | Carbon fiber sheet through-wall reinforcement treatment method for cast-in-place floor beam top cracks |
| US9141077B2 (en) | 2012-03-29 | 2015-09-22 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus including a movable exposure unit |
-
1993
- 1993-01-08 JP JP200293A patent/JP2856013B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010052155A (en) * | 2008-08-26 | 2010-03-11 | Brother Ind Ltd | Exposure apparatus |
| US8310515B2 (en) | 2008-08-26 | 2012-11-13 | Brother Kogyo Kabushiki Kaisha | Exposure apparatus and image forming apparatus provided with the same |
| CN102493673A (en) * | 2011-12-01 | 2012-06-13 | 杭州岩土工程有限公司 | Method for reinforcing epoxy coating used on building surfaces |
| US9141077B2 (en) | 2012-03-29 | 2015-09-22 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus including a movable exposure unit |
| US9411304B2 (en) | 2012-03-29 | 2016-08-09 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus having a supporting frame supporting an exposure unit via an elastic member |
| US9632478B2 (en) | 2012-03-29 | 2017-04-25 | Brother Kogyo Kabushiki Kaisha | Image forming apparatus having a supporting frame supporting an exposure unit having a grounded wire |
| CN103470066A (en) * | 2013-09-13 | 2013-12-25 | 郑州长发电子科技有限公司 | Carbon fiber sheet through-wall reinforcement treatment method for cast-in-place floor beam top cracks |
| CN103470066B (en) * | 2013-09-13 | 2016-06-01 | 郑州长发电子科技有限公司 | The carbon cloth reinforcing and processing method through walls in cast-in-situ floor back crack |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2856013B2 (en) | 1999-02-10 |
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