JP4313750B2 - 埋設地際部の腐食防御性を有する鋼製柱 - Google Patents
埋設地際部の腐食防御性を有する鋼製柱 Download PDFInfo
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- JP4313750B2 JP4313750B2 JP2004320301A JP2004320301A JP4313750B2 JP 4313750 B2 JP4313750 B2 JP 4313750B2 JP 2004320301 A JP2004320301 A JP 2004320301A JP 2004320301 A JP2004320301 A JP 2004320301A JP 4313750 B2 JP4313750 B2 JP 4313750B2
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- 229910000831 Steel Inorganic materials 0.000 title claims description 51
- 239000010959 steel Substances 0.000 title claims description 51
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- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 claims description 5
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- 238000005259 measurement Methods 0.000 description 1
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- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
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- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
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- B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
- B32B13/04—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B13/06—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
- B32B13/04—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B13/12—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B32B15/18—Layered products comprising a layer of metal comprising iron or steel
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
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- C09D5/082—Anti-corrosive paints characterised by the anti-corrosive pigment
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Description
(2)表面に亜鉛系めっきを施した鋼製柱であって、該鋼製柱と埋設用充填材が接する界面上端部の大気側及び充填材側の少なくとも50mmの鋼製柱外側部分に、Ca、Mg、Al、Znのリン酸塩、ホウ酸亜鉛、硫酸Ca、ヴァナジン酸アンモニウムや酸化ヴァナジウムから選ばれる1種、または2種類以上を混合したものであるアンモニウムイオンを中和する能力を有する顔料を1質量%以上30質量%以下含む50μm厚み以上のエポキシ系塗膜であり、前記エポキシ系塗膜が、エポキシ基末端を含むワニスを主成分とし、これに対してアミン、もしくはポリアミン、もしくはイソシアネートにより硬化させるタイプの塗料から得られる塗膜である、アンモニウムイオンを含む水溶液に対する耐久性に優れた被覆層を有することを特徴とする埋設地際部の腐食防御性を有する鋼製柱。
図1は、本発明に係る構成説明図である。この図1に示すように、防食被覆層(亜鉛めっき)2を有する鋼製柱1であって、該鋼製柱1と埋設用充填材(土又はコンクリート)4が接する界面上端部の大気側及び充填材側それぞれの少なくとも50mmの鋼製柱外側部分に、アンモニウムイオンを含む水溶液に対する耐久性に優れた耐食材3からなる被覆層を有することを規定する。
JIS H 8641に規定されている条件で亜鉛めっきを施した外径43mmφ×100mm長さ×3.5mm厚の鋼管外面に、エポキシ樹脂ワニスを49質量%、体質顔料(酸化チタン)を30質量%、その他添加剤を約2質量%、さらに溶剤を6質量%含む主剤に、13質量%の硬化剤で重合させる常温硬化型エポキシ樹脂塗料に、表2に示す顔料を塗料に対する質量%で、主剤中に添加し、刷毛で塗装して耐食材からなる被覆層を形成した。その際、顔料のアンモニウムに対する中和能の測定として、5%アンモニウムイオンを含む水溶液を100g用意し、これに表に記述した顔料を粉末の状態で1%、添加した場合に、pHが1以上下がった場合にアンモニウムイオンを中和する能力があるとした。また、硬化剤の種類も、イソシアネート系樹脂を用いたものとポリアミドアミン系樹脂を用いたものとで試験した。
内径150mmφ、肉厚6mm、長さ3mの鋼管にJIS H8641に規定されている方法により亜鉛めっきを施し、その表面の下端より500mm離れた部分から上部に500mmの範囲に、実施例1に示した7番の仕様の耐食材を被覆したもの、並びに、比較例として、耐食材を被覆しない鋼管をそれぞれ用意した。これらの鋼管を下端より750mmの位置がコンクリート表面に現われるようにコンクリートに立て込み、その上に50mm厚さで土をかぶせたものを試験体とした。
これらの試験体に、1日一回、表1に示した平均的な犬の尿とほぼ同じ成分の溶液を散布した。1年経過した後に観察すると、比較材では、土に埋設された部位のめっきが腐食し、赤錆の発生が見られたが、本発明例の1本の鋼管は全く腐食が認められなかった。これより、本発明の鋼製柱が耐久性に優れることが実証された。
2 防食被覆層(亜鉛めっき)
3 耐食材
4 埋設用充填材(土又はコンクリート)
Claims (2)
- 防食被覆を有する鋼製柱であって、該鋼製柱と埋設用充填材が接する界面上端部の大気側及び充填材側の少なくとも50mmの鋼製柱外側部分に、Ca、Mg、Al、Znのリン酸塩、ホウ酸亜鉛、硫酸Ca、ヴァナジン酸アンモニウムや酸化ヴァナジウムから選ばれる1種、または2種類以上を混合したものであるアンモニウムイオンを中和する能力を有する顔料を1質量%以上30質量%以下含む50μm厚み以上のエポキシ系塗膜であり、前記エポキシ系塗膜が、エポキシ基末端を含むワニスを主成分とし、これに対してアミン、もしくはポリアミン、もしくはイソシアネートにより硬化させるタイプの塗料から得られる塗膜である、アンモニウムイオンを含む水溶液に対する耐久性に優れた被覆層を有することを特徴とする埋設地際部の腐食防御性を有する鋼製柱。
- 表面に亜鉛系めっきを施した鋼製柱であって、該鋼製柱と埋設用充填材が接する界面上端部の大気側及び充填材側の少なくとも50mmの鋼製柱外側部分に、Ca、Mg、Al、Znのリン酸塩、ホウ酸亜鉛、硫酸Ca、ヴァナジン酸アンモニウムや酸化ヴァナジウムから選ばれる1種、または2種類以上を混合したものであるアンモニウムイオンを中和する能力を有する顔料を1質量%以上30質量%以下含む50μm厚み以上のエポキシ系塗膜であり、前記エポキシ系塗膜が、エポキシ基末端を含むワニスを主成分とし、これに対してアミン、もしくはポリアミン、もしくはイソシアネートにより硬化させるタイプの塗料から得られる塗膜である、アンモニウムイオンを含む水溶液に対する耐久性に優れた被覆層を有することを特徴とする埋設地際部の腐食防御性を有する鋼製柱。
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004320301A JP4313750B2 (ja) | 2004-11-04 | 2004-11-04 | 埋設地際部の腐食防御性を有する鋼製柱 |
SG200507326A SG122024A1 (en) | 2004-11-04 | 2005-10-31 | Steel post having corrosion control property for embedded part |
MYPI20055138A MY140091A (en) | 2004-11-04 | 2005-10-31 | Steelpost having corrosion control property for embedded part |
TW094138087A TWI321165B (en) | 2004-11-04 | 2005-10-31 | Steel post having corrosion control property for embedded part |
US11/265,904 US20060101778A1 (en) | 2004-11-04 | 2005-11-02 | Steel post having corrosion control property for embedded part |
KR1020050105109A KR100700084B1 (ko) | 2004-11-04 | 2005-11-03 | 매설부에 대한 부식 방어력을 가지는 강주 |
EP05024147A EP1657325B1 (en) | 2004-11-04 | 2005-11-04 | Steel post embedded in the ground having corrosion control property |
CNB2005101373147A CN100402785C (zh) | 2004-11-04 | 2005-11-04 | 可控制埋入部分的腐蚀的钢柱 |
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JP2004320301A JP4313750B2 (ja) | 2004-11-04 | 2004-11-04 | 埋設地際部の腐食防御性を有する鋼製柱 |
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JP4313750B2 true JP4313750B2 (ja) | 2009-08-12 |
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US (1) | US20060101778A1 (ja) |
EP (1) | EP1657325B1 (ja) |
JP (1) | JP4313750B2 (ja) |
KR (1) | KR100700084B1 (ja) |
CN (1) | CN100402785C (ja) |
MY (1) | MY140091A (ja) |
SG (1) | SG122024A1 (ja) |
TW (1) | TWI321165B (ja) |
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ITUD20060276A1 (it) * | 2006-12-27 | 2008-06-28 | Valente Pali Precompressi S P A | Palo di sostegno per vigneti, per applicazioni agricole, o per esterni e relativo procedimento di realizzazione |
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JP5078786B2 (ja) * | 2008-07-14 | 2012-11-21 | 株式会社ユタカ産業 | 支柱の施工方法 |
JP5258709B2 (ja) * | 2009-09-07 | 2013-08-07 | 新日鉄住金エンジニアリング株式会社 | 防食性鋼製構造物及び鋼製構造物の防食方法 |
JP5386540B2 (ja) * | 2010-05-31 | 2014-01-15 | 一雄 杉中 | 地中埋設用金属支柱 |
GB2520669A (en) * | 2013-09-22 | 2015-06-03 | Gary Wyatt | Lamp post base hugger |
JP6362866B2 (ja) * | 2014-01-14 | 2018-07-25 | 東京電力ホールディングス株式会社 | 鋼管構造物の腐食進行防止方法 |
JP6470511B2 (ja) * | 2014-06-25 | 2019-02-13 | 日鉄住金防蝕株式会社 | 被覆層付き鋼製柱および既設鋼製柱の防食施工方法 |
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CN107476639A (zh) * | 2017-09-22 | 2017-12-15 | 中国南方电网有限责任公司超高压输电公司柳州局 | 一种输电杆塔主材根部长寿命防腐结构的制作方法 |
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-
2004
- 2004-11-04 JP JP2004320301A patent/JP4313750B2/ja active Active
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2005
- 2005-10-31 MY MYPI20055138A patent/MY140091A/en unknown
- 2005-10-31 TW TW094138087A patent/TWI321165B/zh not_active IP Right Cessation
- 2005-10-31 SG SG200507326A patent/SG122024A1/en unknown
- 2005-11-02 US US11/265,904 patent/US20060101778A1/en not_active Abandoned
- 2005-11-03 KR KR1020050105109A patent/KR100700084B1/ko active IP Right Grant
- 2005-11-04 CN CNB2005101373147A patent/CN100402785C/zh not_active Expired - Fee Related
- 2005-11-04 EP EP05024147A patent/EP1657325B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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KR100700084B1 (ko) | 2007-03-28 |
TW200619427A (en) | 2006-06-16 |
CN100402785C (zh) | 2008-07-16 |
EP1657325B1 (en) | 2010-08-18 |
CN1782304A (zh) | 2006-06-07 |
KR20060052451A (ko) | 2006-05-19 |
SG122024A1 (en) | 2006-05-26 |
MY140091A (en) | 2009-11-30 |
TWI321165B (en) | 2010-03-01 |
JP2006132128A (ja) | 2006-05-25 |
US20060101778A1 (en) | 2006-05-18 |
EP1657325A1 (en) | 2006-05-17 |
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