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Study on the long term durability of continuous fiber reinforcement and sheet reinforcement

Research Project

Project/Area Number 21360209
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Civil engineering materials/Construction/Construction management
Research InstitutionPublic Works Research Institute

Principal Investigator

NISHIZAKI Itaru  独立行政法人土木研究所, 材料資源研究グループ, 上席研究員 (80355792)

Co-Investigator(Kenkyū-buntansha) SASAKI Iwao  独立行政法人土木研究所, 材料資源研究グループ, 主任研究員 (00355794)
TOMIYAMA Tomonori  独立行政法人土木研究所, 材料資源研究グループ, 主任研究員 (50370721)
Project Period (FY) 2009 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥16,510,000 (Direct Cost: ¥12,700,000、Indirect Cost: ¥3,810,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2010: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
Fiscal Year 2009: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Keywords複合材料 / ケーブル / シート / 補強材料 / 耐久性 / 連続繊維補強材 / 連続繊維シート / CFRP / AFRP / 暴露試験 / 土木材料 / 複合材料・物性 / 土木資料 / 複合材料・特性
Research Abstract

Long term durability of the continuous fiber reinforcement materials & sheet reinforcement materials was studied using specimens recovered from outdoor exposure tests for ten to twenty years. The results of the relaxation ratio after 17 years exposure were about 20% for two CFRP cables and two AFRP cables. No remarkable influence of the initial load was observed even the maximum case was 0.8 of the strength. The recovered cable specimens also showed almost same mechanical properties as the initial. Two types of CFRP sheet specimens recovered from ten years exposure showed no remarkable changes in tensile properties, however slight reduction of in-plane shear properties was observed (about 80% for strength and about 60 % for modulus). This result suggests that the fiber itself has a good durability however the interface between fiber and resin shows slight deterioration in some cases.

Report

(5 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (19 results)

All 2013 2012 2011 2010

All Journal Article (2 results) (of which Peer Reviewed: 1 results) Presentation (13 results) Book (4 results)

  • [Journal Article] 赤外線顕微鏡による連続繊維補強材の劣化観察2011

    • Author(s)
      西崎到
    • Journal Title

      赤外線顕微鏡による連続繊維補強材の劣化観察

      Volume: Vol.55. No.1 Pages: 52-53

    • Related Report
      2012 Final Research Report
  • [Journal Article] Evaluation of the durability of CFRP sheets after climatic exposure2011

    • Author(s)
      I.Nishizaki, P.Labossiere, K.Neale, M.Demers, T.Tomiyama
    • Journal Title

      Proceedings of the fourth International Conference on Durability and Sustainabilitv of FRP Composites

      Volume: 1 Pages: 91-99

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Presentation] ensile load relaxation of FRP cable system during long-term exposure tests2012

    • Author(s)
      Iwao Sasaki, Itaru Nishizaki
    • Organizer
      Proceedings of the 6th International Conference on FRP Composites in Civil Engineering,
    • Related Report
      2012 Final Research Report
  • [Presentation] 炭素繊維シート巻立て補強コンクリートの屋外耐久性に関する検討2012

    • Author(s)
      冨山禎仁、ピエール・ラボシエール、ケニス・W・ニール、マーク・ドメス、西崎到
    • Organizer
      第4回FRP複合構造・橋梁に関するシンポジウム講演概要集 Vol.4
    • Related Report
      2012 Final Research Report
  • [Presentation] FRPケーブル材料の長期曝露後の残存強度特性2012

    • Author(s)
      佐々木厳、西崎到
    • Organizer
      第4回FRP複合構造・橋梁に関するシンポジウム講演概要集 Vol.4
    • Related Report
      2012 Final Research Report
  • [Presentation] TENSILE LOAD RELAXATION OF FRP CABLE SYSTEM DURING LONG-TERM EXPOSURE TESTS2012

    • Author(s)
      佐々木 巌
    • Organizer
      6th International Conference on FRP Composites in Civil Engineering
    • Place of Presentation
      ローマ
    • Related Report
      2012 Annual Research Report
  • [Presentation] 炭素繊維シート巻立て補強コンクリートの屋外耐久性に関する検討2012

    • Author(s)
      冨山 禎仁
    • Organizer
      第4回FRP複合構造・橋梁に関するシンポジウム
    • Place of Presentation
      東京
    • Related Report
      2012 Annual Research Report
  • [Presentation] FRPケーブル材料の長期曝露後の残存強度特性2012

    • Author(s)
      佐々木 巌
    • Organizer
      第4回FRP複合構造・橋梁に関するシンポジウム
    • Place of Presentation
      東京
    • Related Report
      2012 Annual Research Report
  • [Presentation] コンクリート補強用連続繊維シート(CFRP)の長期耐久性2011

    • Author(s)
      冨山禎仁、西崎到
    • Organizer
      第9回複合・合成構造構造の活用に関するシンポジウム
    • Place of Presentation
      東京(土木学会)
    • Year and Date
      2011-11-10
    • Related Report
      2011 Annual Research Report
  • [Presentation] 長期屋外暴露試験における連続繊維補強材のリラクセーション2011

    • Author(s)
      佐々木厳、西崎到
    • Organizer
      土木学会第66回年次学術講演会
    • Place of Presentation
      愛媛大学
    • Year and Date
      2011-09-08
    • Related Report
      2011 Annual Research Report
  • [Presentation] Evaluation of the durability of CFRP sheets after climatic exposure2011

    • Author(s)
      I. Nishizaki, P. Labossiere, K. W. Neale, M. Demers and T. Tomiyama,
    • Organizer
      Proceedings of the fourth International Conference on Durability and Sustainability of Fibre Reinforced Polymer (FRP) Composites for Construction and Rehabilitation (CDCC 2011)
    • Related Report
      2012 Final Research Report
  • [Presentation] 長期屋外暴露試験における連続繊維補強材の見かけのリラクセーション2011

    • Author(s)
      佐々木厳、西崎到
    • Organizer
      土木学会年次講演会、論文番号5-184
    • Related Report
      2012 Final Research Report
  • [Presentation] コンクリート補強用連続繊維シート(CFRP)の長期耐久性評価2011

    • Author(s)
      冨山禎仁、西崎到
    • Organizer
      第9回複合・合成構造の活用に関するシンポジウム
    • Related Report
      2012 Final Research Report
  • [Presentation] Long-Term Durability of FRP Cables under Maritime Conditions2010

    • Author(s)
      Itaru Nishizaki
    • Organizer
      5th International Conference on FRP Compositesin Civil Engineering (CICE2010)
    • Place of Presentation
      中国、北京
    • Year and Date
      2010-09-29
    • Related Report
      2010 Annual Research Report
  • [Presentation] Long-Term Durability of FRP Cables under Maritime Conditions2010

    • Author(s)
      Itaru Nishizaki and Iwao Sasaki
    • Organizer
      Proceedings of the 5th International Conference on FRP Composites in Civil Engineering (CICE2010)
    • Related Report
      2012 Final Research Report
  • [Book] 次世代自動車(EV・HV)に向けた自動車材料の樹脂化による車体軽量化(共著、分担執筆:第2章第17節 屋外で使用するFRPの耐候性試験、寿命予測)2013

    • Author(s)
      西崎到他(共著)
    • Publisher
      (株)技術情報協会
    • Related Report
      2012 Final Research Report
  • [Book] 次世代自動車(EV・HV)に向けた自動車材料の樹脂化による車体軽量化(共著、分担執筆:第2章第17節 屋外で使用するFRPの耐候性試験、寿命予測)2013

    • Author(s)
      西崎 到(共著)
    • Total Pages
      798
    • Publisher
      (株)技術情報協会
    • Related Report
      2012 Annual Research Report
  • [Book] CFRPの樹脂含浸性向上と信頼性評価(分担執筆:第7章第2節 屋外で使用するFRPの耐候性試験、寿命予測)2010

    • Author(s)
      西崎到他(共著)
    • Publisher
      (株)技術情報協会
    • Related Report
      2012 Final Research Report
  • [Book] 土木研究所資料「被覆系コンクリート補修補強材料の耐久性に関する研究 -連続繊維シートの耐久性およびその評価手法の検討-」2010

    • Author(s)
      西崎到、佐々木厳
    • Total Pages
      30
    • Publisher
      独立行政法人 土木研究所
    • Related Report
      2009 Annual Research Report

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Published: 2009-04-01   Modified: 2019-07-29  

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