EMPIRICAL RESEARCH ON PERFORMANCE EVALUATION OF HIGHLY DURABLE RC ROAD BRIDGE DECK AT CONSTRUCTION PROCESS

• SAKAKIBARA Naoki

  NIHON UNIVERSITY, Civil Engineering Course（1, Nakakawara Koriyama-shi Fukushima 963-8642, Japan）

• TANAKA Yasushi

  KANAZAWA INSTITUTE OF TECHNOLOGY（7-1, Ogigaoka Nonoiti-shi Ishikawa 921-8812, Japan）

• SATO Kazunori

  NIHON UNIVERSITY, College of Engineering（1, Nakakawara Koriyama-shi Fukushima 963-8642, Japan）

• IWAKI Ichiro

  NIHON UNIVERSITY, College of Engineering（1, Nakakawara Koriyama-shi Fukushima 963-8642, Japan）

Bibliographic Information

Other Title

• 高耐久道路橋RC床版の施工段階における各種性能評価に関する実証研究

Abstract

Since deicing salt is sprayed on the reinforced concrete（RC）road bridge decks in the cold regions in winter season, complex deterioration of salt damage, freezing damage under a salt environment and alkali silica reaction（ASR）is often found on bridge decks in recent years, even in areas with low traffic. Therefore, it has been pointed out that it is necessary to enhance the durability of the RC road bridge decks by introducing new concept in durability design. In this study, the performance of casted concrete was evaluated at the stage of the construction process in order to ensure the durability of casted RC road bridge deck. Multiple defense concept was introduced by applying anti-rust coating rebar and high durability concrete against salt damage, freezing damage and ASR. The construction plan was made carefully referring to the laboratory tests and trial construction with site mock up. Then, actual RC road bridge deck was constructed. It was confirmed that the RC road bridge deck achieved the performance expected in the durability design by various non-destructive tests and investigations at construction site. Consequently, the effectiveness of the proposed performance evaluation procedure at the stage of the construction process for RC bridge deck is demonstrated.

Journal

• Cement Science and Concrete Technology

  Cement Science and Concrete Technology 72 (1), 277-284, 2019-03-29

  Japan Cement Association

Keywords

• RC slab deck
• Durability
• Multiple defense
• Fly ash
• Deicing salt

Details

• CRID: 1390001288141261056
• NII Article ID: 130007626851
• DOI: 10.14250/cement.72.277
• ISSN: 21873313
• ISSN: 09163182
• Web Site: https://www.jstage.jst.go.jp/article/cement/72/1/72_277/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed