ひび割れ内部の水分挙動に関する実験的検討  [in Japanese] An experimental study on the behavior of water inside concrete cracks  [in Japanese]

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Abstract

本研究は,ひび割れ部の水分挙動を定量的に把握することを目的とし,ひび割れを導入した供試体を用いて吸水および水分逸散試験を行った.予備実験の結果,降雨と水中浸漬は概ね同様の吸水挙動を示したことから,水中浸漬による吸水試験を行った.その結果,本実験で設定したひび割れ幅の相違は吸水挙動にほとんど影響を及ぼさず,吸水開始後早期にひび割れ内部の含水率が90%程度まで満たされることがわかった.また逸散試験に関しても,含水率の相違が水分の逸散挙動に及ぼす影響はほとんど確認できず,ひび割れ内部の水分が完全に逸散するには,吸水に比べて相当の時間を要することを確認した.[本要旨はPDFには含まれない]

In this study, in order to understand the behavior of water in the cracks quantitatively, a study conducted water absorption and desiccation test with in cracked concrete specimens. It was found that immersion in water was almost the same as rain exposure when considering the behavior of absorption water. Therefore, the immersion in water was used as a water absorption test. These results found that the difference of crack width set by this experiment hardly influenced the behavior of water absorption and the water content ratio in the cracks immediately exceeded 90%. The water desiccation test showed that the difference of the water content ratio hardly influenced the behavior of water desiccation. The time for water desiccation completely was much longer than water absorption.[This abstract is not included in the PDF]

Journal

  • SEISAN KENKYU

    SEISAN KENKYU 62(4), 327-330, 2010

    Institute of Industrial Science The University of Tokyo

Codes

  • NII Article ID (NAID)
    130000441658
  • NII NACSIS-CAT ID (NCID)
    AN00127075
  • Text Lang
    JPN
  • Article Type
    特集
  • Journal Type
    大学紀要
  • ISSN
    0037-105X
  • NDL Article ID
    10832287
  • NDL Source Classification
    ZM2(科学技術--科学技術一般--大学・研究所・学会紀要)
  • NDL Call No.
    Z14-198
  • Data Source
    NDL  J-STAGE 
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