JPS6241750A - Naticorrosive ferroconcrete art - Google Patents
Naticorrosive ferroconcrete artInfo
- Publication number
- JPS6241750A JPS6241750A JP18028585A JP18028585A JPS6241750A JP S6241750 A JPS6241750 A JP S6241750A JP 18028585 A JP18028585 A JP 18028585A JP 18028585 A JP18028585 A JP 18028585A JP S6241750 A JPS6241750 A JP S6241750A
- Authority
- JP
- Japan
- Prior art keywords
- corrosion
- concrete
- coating
- steel
- reinforcing bars
- 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
Links
Landscapes
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
従来鉄筋および鉄骨コンクリート構造物には、表面には
何ら防蝕塗装の施されていない鉄筋および鉄骨を用いて
コンクリートを打設する工法が一般に行われてきたが、
以下述べる様な問題点が指摘されている。[Detailed Description of the Invention] Conventionally, a method of pouring concrete using reinforcing bars and steel frames whose surfaces are not coated with any anti-corrosion coating has been generally used for reinforcing bars and steel frame concrete structures.
The following problems have been pointed out.
■ 鉄筋および鉄骨の表面に有機系の防蝕塗装を施すと
、打設されるコンクリートとの付着が不良である。その
ためにコンクリートと鉄筋または鉄骨が完全に一体化せ
ず、外力が作用した場合耐力等に問題がある。■ When organic anti-corrosion coatings are applied to the surfaces of reinforcing bars and steel frames, they do not adhere well to the concrete being poured. For this reason, the concrete and reinforcing bars or steel frames are not completely integrated, and when external forces are applied, there is a problem with the strength.
■ 鉄筋および鉄骨の表面に防蝕を施していないために
、コンクリート骨材の塩分、コンクリート中への海水の
浸透、コンクリートの中性化およびコンクリートの亀裂
部分からの雨水および酸性ガス等の浸入に起因して、鉄
筋および鉄骨に錆が発生して膨張するために、コンクリ
ートに亀裂および剥離等の損傷が生じる。■ Due to the lack of corrosion protection on the surfaces of reinforcing bars and steel frames, this is caused by salt in the concrete aggregate, seawater infiltration into the concrete, neutralization of the concrete, and infiltration of rainwater and acidic gases through cracks in the concrete. As a result, rust develops and expands in the reinforcing bars and steel frames, causing damage to the concrete such as cracks and peeling.
以上の点を考慮して、コンクリ−１・中に内蔵される鉄
筋および鉄骨の表面を防蝕して、しかも打設されるコン
クリートと確実に付着し、鉄筋と鉄骨が一体化する工法
が開発出来ないものかという要望が大であった。Taking the above points into consideration, we have developed a construction method that protects the surface of the reinforcing bars and steel frames built into Concrete 1 and allows them to adhere reliably to the poured concrete and integrate the reinforcing bars and steel frames. There was a great demand for something that didn't exist.
本工法は現場でのその要望に答えて確実な工法で解決し
たものである。This construction method is a reliable construction method that meets the needs of the field.
以下その工法について順を追って説明する。The construction method will be explained step by step below.
Ｏ鉄筋または鉄骨の表面２を、化学処理またはサンドブ
ラストにより塗装下地処理を行う。The surface 2 of the O reinforcing bar or steel frame is treated as a base for painting by chemical treatment or sandblasting.
■ 鉄筋または鉄骨の表面２に、下塗防蝕塗装を行う。■ Apply anti-corrosion primer coating to the surface 2 of the reinforcing bars or steel frames.
■ 上塗防蝕塗装４をスプレーまたは刷毛により塗布し
、ただちに塗膜表面が未硬化の間に、珪砂または砂５を
表面に均一に散布し付着硬化させる。(2) Apply the top corrosion-resistant coating 4 by spraying or brushing, and immediately, while the coating surface is uncured, silica sand or sand 5 is uniformly sprinkled on the surface and hardened.
■ 付着硬化した珪砂または砂５の表面に、無機系無収
縮モルタルを刷毛またはリシンガンを用いて吹付は付着
させ、無機系被覆保護膜６を鉄筋または鉄骨表面に形成
させる。(2) An inorganic non-shrinkage mortar is sprayed onto the surface of the hardened silica sand or sand 5 using a brush or a ricing gun to form an inorganic coating protective film 6 on the surface of the reinforcing bars or steel frames.
［相］ 下塗防蝕塗装、上塗防蝕塗装、散布付着骨材、
無機系無収縮被覆保護膜によって表面を被覆保護された
鉄筋または鉄骨１をコンクリートと共に打設し７付着さ
せ一体化する。[Phase] Anti-corrosion undercoat, anti-corrosion top coat, sprayed aggregate,
A reinforcing bar or steel frame 1 whose surface is coated and protected with an inorganic non-shrinkage coating protective film is cast together with concrete and 7 is attached and integrated.
第１図は、本工法の詳細断面図である。
１は、鉄筋または鉄骨である。
２は、鉄筋または鉄骨の表面である。
４は、上塗防蝕塗装である。
５は、上塗防蝕塗装膜に散布し、付着硬化した珪砂また
は砂である。
６は、５の表面にリシンガンまたは刷毛によって塗布し
形成された無機系被覆保護膜である。
７は、打設コンクリートの表面である。
８は、打設されたコンクリートである。FIG. 1 is a detailed cross-sectional view of this construction method. 1 is a reinforcing bar or a steel frame. 2 is the surface of the reinforcing bar or steel frame. 4 is a top coat anti-corrosion coating. 5 is silica sand or sand that has been sprayed onto the top anti-corrosion coating film and hardened. 6 is an inorganic coating protective film formed by coating the surface of 5 with a coating gun or a brush. 7 is the surface of poured concrete. 8 is concrete that has been poured.
Claims (5)
面２に、前もって下塗防蝕塗装３を行い、塗膜が硬化後
上塗防蝕塗装４をスプレーまたは刷毛により塗布し、塗
装面が未硬化の間に、硅砂または砂５を表面に均一に散
布し付着硬化させる。 さらに付着硬化したこの硅砂または砂５の表面に無機系
無収縮モルタルを刷毛またはリシンガンを用いて塗布ま
たは吹付付着させて無機系被覆保護膜を形成させる。以
上の如くして形成された防蝕塗膜・砂・付着層および無
機系被覆保護膜により防蝕された鉄筋または鉄骨１をコ
ンクリート８と共に打設することにより、内蔵された鉄
筋または鉄骨を錆から防止し、しかも無機系被覆保護膜
により打設されたコンクリートと良好に付着し一体化す
る。 またコンクリートの骨材中に含まれる塩分、海水のコン
クリート中への浸透、コンクリートの亀裂部分からの雨
水・酸性ガスの浸透、およびコンクリートの中性化等に
起因する鉄筋または鉄骨の錆の進行によるコンクリート
構造物の損傷を防止し、耐用年数の延長を計る工法であ
る。(1) Apply an anti-corrosion primer coating 3 to the surface 2 of the reinforcing bars or steel frames used in reinforced concrete in advance, and after the coating has hardened, apply the anti-corrosion top coating 4 by spray or brush. Alternatively, sand 5 is uniformly spread on the surface and hardened. Further, an inorganic non-shrinkage mortar is applied or sprayed onto the surface of the adhered and hardened silica sand or sand 5 using a brush or a ricing gun to form an inorganic coating protective film. The built-in reinforcing bars or steel frames are prevented from rusting by pouring the reinforcing bars or steel frames 1, which are protected against corrosion by the anticorrosive coating, sand, adhesion layer, and inorganic protective film formed as described above, together with concrete 8. Moreover, the inorganic protective coating allows it to adhere well to and integrate with the poured concrete. In addition, the progression of rust on reinforcing bars or steel frames due to salt contained in concrete aggregates, seawater infiltration into concrete, rainwater and acid gas infiltration through cracks in concrete, and neutralization of concrete, etc. This is a construction method that prevents damage to concrete structures and extends their service life.
板等のコンクリートに埋め込まれまたは接着する一切の
鋼製の材料である特許請求範囲第１項記載の防蝕鉄筋コ
ンクリート工法。(2) The corrosion-resistant reinforced concrete construction method according to claim 1, wherein the steel material to be subjected to corrosion protection is any steel material that is embedded in or adhered to concrete, such as reinforcing bars, steel frames, steel sheet piles, steel pipes, and steel plates.
機系、無機系の防蝕効果の認められる一切の素材である
特許請求範囲第１項記載の防蝕鉄筋コンクリート工法。(3) The corrosion-resistant reinforced concrete construction method according to claim 1, wherein the corrosion-resistant coating applied to the surface of the reinforcing bars or steel frames is any organic or inorganic material that is recognized to have a corrosion-preventing effect.
然および人工の無機および有機系の付着可能な一切の素
材である特許請求範囲第１項記載の防蝕鉄筋コンクリー
ト工法。(4) The corrosion-resistant reinforced concrete construction method according to claim 1, wherein the material to be adhered to and hardened on the surface of the top corrosion-resistant coating is any natural, artificial, inorganic or organic material that can be adhered to.
な無機または有機系の一切の素材である特許請求範囲第
１項記載の防蝕鉄筋コンクリート工法。(5) The corrosion-resistant reinforced concrete construction method according to claim 1, wherein the material of the covering protective layer 6 is any inorganic or organic material that adheres well to concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18028585A JPS6241750A (en) | 1985-08-16 | 1985-08-16 | Naticorrosive ferroconcrete art |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18028585A JPS6241750A (en) | 1985-08-16 | 1985-08-16 | Naticorrosive ferroconcrete art |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6241750A true JPS6241750A (en) | 1987-02-23 |
Family
ID=16080537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18028585A Pending JPS6241750A (en) | 1985-08-16 | 1985-08-16 | Naticorrosive ferroconcrete art |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6241750A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01249090A (en) * | 1988-03-30 | 1989-10-04 | Juki Corp | Contraction sewing machine |
-
1985
- 1985-08-16 JP JP18028585A patent/JPS6241750A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01249090A (en) * | 1988-03-30 | 1989-10-04 | Juki Corp | Contraction sewing machine |
| JPH0738909B2 (en) * | 1988-03-30 | 1995-05-01 | ジューキ株式会社 | Sewing machine |
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