工業化住宅内各部位の環境腐食性 Corrosivity of Indoor Atmosphere for a Prefabricated House

この論文にアクセスする

この論文をさがす

著者

抄録

An atomospheric exposure test has been conducted since Sept. 26, 1994 at a five member family steel framed prefabricated house in Nogi-chou, Shimotuga-gun, Tochigi prefecture. The ACM (Atmospheric Corrosion Monitor) corrosion sensors and zinc-coated steel coupons are exposed in nine indoor sites-ceilings, floors and wall cavities-and one outdoor site sheltered from rain. Three year of measured results are reported here. The ACM sensor outputs galvanic current, <i>I</i>, between carbon steel and silver, integral of which over a day -daily average electricity, <i>Q</i>- is related to corrosion rates of carbon steel and zinc to be used as a measure of corrosivity for each site. The sensor output, <i>I</i>, is found to depend not only on relative humidity, <i>RH</i>, but also on amount of deposits on the sensor, which, expressed as equivalent amount of deposited sea salt, <i>Ws</i>, is determined by referencing to <i>I</i> vs. <i>RH</i> relationship observed under various predetermined amounts of deposited sea salt in laboratory test. Corrosion rates of carbon steel and zinc at their indoor sites are around one fifth of the outdoor one. Such lower corrosion rates at the indoor sites are attributed mainly to lower <i>Ws</i> values which are around one tenth of the outdoor one. Moreover, amount of sulfur trioxide collected for a year is 0.001mg SO<sub>3</sub>/100cm<sup>2</sup>/day at an indoors site, one twenty sixth of the outdoor one.

収録刊行物

  • 材料と環境 : zairyo-to-kankyo  

    材料と環境 : zairyo-to-kankyo 47(10), 651-660, 1998-10-15 

    Japan Society of Corrosion Engineering

参考文献:  18件

参考文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

各種コード

  • NII論文ID(NAID)
    10002175104
  • NII書誌ID(NCID)
    AN10235427
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09170480
  • NDL 記事登録ID
    4584028
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-266
  • データ提供元
    CJP書誌  NDL  J-STAGE 
ページトップへ