STUDY ON THE PROCESS OF THE CORROSION- INDUCED CRACK, DELAMINATION AND SPALLING ON RC WALL WITH MORTAR FINISH

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  • TSUCHIYA Naoko
    Material and Components Standards Division, Dept. of Building, National Institute for Land and Infrastructure Management
  • NAKADA Kiyofumi
    Dept. of Building Materials and Components, Building Research Institute
  • IKAWA Norihiro
    Hachiyo consultant Co.,Ltd.
  • YOKOYAMA Hiroshi
    Hachiyo consultant Co.,Ltd.
  • MISHIMA Naoki
    Material and Components Standards Division, Dept. of Building, National Institute for Land and Infrastructure Management
  • MATSUZAWA Koichi
    Dept. of Building Materials and Components, Building Research Institute
  • KAGE Tadatsugu
    Dept. of Building Materials and Components, Building Research Institute
  • TANANO Hiroyuki
    Dept. of Building Materials and Components, Building Research Institute

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Other Title
  • モルタル仕上げのあるRC壁部材表面において確認される鉄筋腐食を原因とするひび割れ，浮き・剥離の顕在化過程に関する研究

Abstract

<p>For the purpose to study about the characteristics of the process of the corrosion-induced deterioration detected on surface of RC wall with mortar finish, RC wall specimens were electrified and measured the amount of the deteriorations as crack, delamination and spalling by hammer and visual examination periodically. From the results, in the case the cover thickness was small, the delamination increased with the progress of the rebar corrosion, which behavior were not liner but agogics. And in the case the cover thickness was large, the cracks along the rebar increased on mortar surface with the progress of the rebar corrosion.</p>

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