STUDY ON THE EFFECTS OF CHEMICAL AND PHYSICAL PROPERTY OF CONCRETE ON THE BEHAVIOR OF WATER

コンクリート中の液状水挙動に与える物理的ならびに化学的性質の影響に関する検討

In evaluation of durability of the concrete structures, it is important to understand the behavior of liquid water in pores in order to predict the deterioration caused by water. In this paper, it is discussed how mix proportion and curing condition affect the behavior of liquid water in concrete, using the apparent contact angle as a chemical indicator and the threshold radius as a physical indicator. As a result, it is indicated that the difference of chemical property by the kind of admixture affect scarcely the behavior of liquid water in concrete and physical property such as pore structure dominates the behavior of liquid water.コンクリート構造物の耐久性能評価において、空隙中での液状水挙動を把握することは、水分が要因となる劣化進行を精密に予測する上で重要である。本研究では、コンクリートの化学的性質を表す指標として見かけの接触角に、物理的性質としてしきい細孔径に着目し、化学的性質と物理的性質の両方の観点から、配合や養生がコンクリート中の液状水挙動に与える影響を検討した。その結果、混和材の有無による化学的性質の差異が毛管張力に与える影響はわずかであり、圧力勾配を駆動力とする流速を伴った液状水挙動において、空隙構造という物理的性質が支配的である可能性を示した。

• Record URL:
  • https://doi.org/10.14250/cement.66.444
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=STUDY+ON+THE+EFFECTS+OF+CHEMICAL+AND+PHYSICAL+PROPERTY+OF+CONCRETE+ON+THE+BEHAVIOR+OF+WATER&author=C.+NAKAMURA&author=Y.+SAKAI&author=T.+KISHI&publication_year=2012
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09163182
• Authors:
  • NAKAMURA, Choji
  • SAKAI, Yuya
  • KISHI, Toshiharu
• Publication Date: 2012

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References; Tables;
• Pagination: pp 444-451
• Serial:
  • Cement Science and Concrete Technology
  • Volume: 66
  • Issue Number: 1
  • Publisher: Japan Cement Association
  • ISSN: 0916-3182
  • EISSN: 2187-3313
  • Serial URL: https://www.jstage.jst.go.jp/browse/cement/-char/en
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Admixtures; Concrete curing; Concrete structures; Deterioration; Moisture content; Pores
• Subject Areas: Bridges and other structures; Construction; Highways; Materials; I32: Concrete; I50: Construction and Supervision of Construction;

Filing Info

• Accession Number: 01522950
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Apr 24 2014 11:45AM