FLEXURAL STRENGTH MANAGEMENT METHOD USING CUMULATIVE MATURITY AND VERIFICATION FOR CONSTRUCTION CRACK OF “EARLY OPENING TO TRAFFIC” CONCRETE PAVEMENT (ONE DAY PAVE)

早期交通開放型コンクリート舗装（1DAY PAVE）の強度管理および施工ひび割れ照査の検討

This study proposes a flexural strength management system with cumulative maturity concept and verifies for construction crack of “early opening to traffic” concrete pavement (One Day Pave, ODP). ODP employs special mixture proportions with general purpose materials to accelerate strength development and shorten hardening period down to literally one day or less. On the other hand, the time for flexural strength management becomes shorter. Therefore the strength should be precisely and effectively evaluated during the curing period. This study developed a strength evaluation method using cumulative maturity, which is easily estimated by measured concrete temperatures. Also the verification result of construction crack shows that insulated curing is important not only for strength development but also for prevention of construction crack. 早期交通開放型コンクリート舗装（1DAY PAVE）について、積算温度を用いた強度管理方法と施工ひび割れの検討を行った。本舗装は、汎用的な材料を使用しつつも配合の検討により強度発現性を高めた舗装である。この特徴により養生期間を短くし早期の交通開放を可能とするが、一方で短期間に効率的かつ適切に曲げ強度を評価することが必要となる。そこで、積算温度を用いた曲げ強度の評価手法について検討し、その有効性を確認した。また、施工ひび割れの照査を行った結果、適切に保温養生を行うことが強度発現性を確保する為だけでなく施工ひび割れを防止する為にも重要であることが分かった。

• Record URL:
  https://doi.org/10.14250/cement.71.280
• Record URL:
  http://scholar.google.com/scholar_lookup?title=FLEXURAL%20STRENGTH%20MANAGEMENT%20METHOD%20USING%20CUMULATIVE%20MATURITY%20AND%20VERIFICATION%20FOR%20CONSTRUCTION%20CRACK%20OF%20%E2%80%9CEARLY%20OPENING%20TO%20TRAFFIC%E2%80%9D%20CONCRETE%20PAVEMENT%EF%BC%88ONE%20DAY%20PAVE%EF%BC%89&author=H.%20IZUO&author=H.%20NAKAMURA&author=Y.%20TAKINAMI&author=T.%20YOSHIMOTO&publication_year=2017
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09163182
• Authors:
  • IZUO, Hidefumi
  • NAKAMURA, Hironori
  • TAKINAMI, Yuto
  • YOSHIMOTO, Toru
• Publication Date: 2017

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 280-287
• Serial:
  • Cement Science and Concrete Technology
  • Volume: 71
  • 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: Concrete curing; Concrete pavements; Cracking; Cracking of concrete pavements; Flexural strength
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01667543
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Apr 27 2018 12:22PM