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Inspection and repair methods on frost damage of concrete based on evaluation of scaling using gloss meter

Research Project

Project/Area Number 23560657
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Building structures/materials
Research InstitutionHokkaido University

Principal Investigator

HASEGAWA Takuya  北海道大学, 工学(系)研究科(研究院), 准教授 (30360465)

Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2011: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords凍害 / コンクリート / スケーリング / 光沢度 / 診断
Research Abstract

In this study, we dealt with frost damage of concrete such as scaling, and investigated the inspection and repair methods on frost damage of concrete based on evaluation of scaling using gloss meter with thin aluminum foil. It was obtained surface roughness from the glossiness, and estimated amount of scaling from the surface roughness. According to the results, we proposed the equation for estimation of concrete weight loss from glossiness, and also proposed the equation for progress prediction of scaling based on results of experiments. We studied appropriate repair methods for deteriorated concrete and carried out field survey of actual structures located in cold region for verification of our proposed methods. The survey results showed that the state of scaling measured by the proposed method matched the results by the RILEM standard method based on visual observation.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (4 results)

All 2014

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (2 results)

  • [Journal Article] コンクリートの凍害を対象とした限界放水度法とJIS A 1148 A法の試験結果に基づく耐用年数の比較2014

    • Author(s)
      長谷川拓哉、千歩修、福山智子
    • Journal Title

      コンクリート工学年次論文集

      Volume: No.36(掲載決定)

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] コンクリートの凍害を対象とした限界飽水度法とJIS A 1148 A法の試験結果に基づく耐用年数の比較2014

    • Author(s)
      長谷川拓哉、千歩修、福山智子
    • Journal Title

      コンクリート工学年次論文集

      Volume: 36

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Presentation] 骨材種類が光沢度計によるスケーリング量推定結果に及ぼす影響2014

    • Author(s)
      長谷川拓哉、千歩修、福山智子
    • Organizer
      日本建築学会大会
    • Place of Presentation
      神戸大学
    • Related Report
      2013 Final Research Report
  • [Presentation] 骨材種類が光沢度計によるスケーリング量推定結果に及ぼす影響2014

    • Author(s)
      長谷川拓哉、千歩修、福山智子
    • Organizer
      日本建築学会大会
    • Place of Presentation
      神戸大学(神戸市)
    • Related Report
      2013 Annual Research Report

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Published: 2011-08-05   Modified: 2019-07-29  

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