THE CHANGE IN RESISTANCE TO MASS TRANSFER OF REPAIR MATERIALS UNDER CYCLIC ACCELERATED ENVIRONMENTAL CONDITIONS

• PARK Dongcheon

  Dept. of Arch., Graduate School of Eng., The Univ. of Tokyo

• KANEMATSU Manabu

  Dept. of Arch., Graduate School of Eng., The Univ. of Tokyo

• NOGUCHI Takafumi

  Dept. of Arch., Graduate School of Eng., The Univ. of Tokyo

Bibliographic Information

Other Title

• 温湿度の繰返し変化によるコンクリート用断面修復材の物質移動抵抗性の変化に関する研究
• オン シツド ノ クリカエシ ヘンカ ニ ヨル コンクリートヨウ ダンメン シュウフクザイ ノ ブッシツ イドウ テイコウセイ ノ ヘンカ ニ カンスル ケンキュウ

Abstract

The damaged RC structures due to corrosion of embedded steel bars are usually repaired by such repair materials as polymer modified cement mortar (PCM). Compatibility in dimension, permeability, and chemical and electrochemical properties with existing concrete are required for repair materials in optimal repair system. There is, however, little information about performance of repair materials over time. In this paper changes of such properties as air permeability, water penetration and capillary water suction in PCM were investigated under cyclic accelerated environmental condition, i.e. wetting-and-drying and high-and-low temperature. The experimental results are discussed based on the change of micro-pore size distribution. The patterns of degradation of PCM are classified into two types, i.e. the deterioration in PCM matrix and the damage in surface polymer film.

Journal

• Journal of Structural and Construction Engineering (Transactions of AIJ)

  Journal of Structural and Construction Engineering (Transactions of AIJ) 70 (592), 27-34, 2005

  Architectural Institute of Japan

Keywords

• Repair Materials
• Cyclic High-and-low-temperature and Wetting-and-drying Conditions
• Resistance to Mass Transfer
• Micro-pore Size Distribution
• Polymer Film

Details

• CRID: 1390001205637490304
• NII Article ID: 110004839713
• NII Book ID: AN10438559
• DOI: 10.3130/aijs.70.27_1
• ISSN: 18818153
• ISSN: 13404202
• NDL BIB ID: 7390167
• Web Site: http://id.ndl.go.jp/bib/7390167
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7390167
• Web Site: https://www.jstage.jst.go.jp/article/aijs/70/592/70_KJ00004392798/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed