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Rehabilitation of Deteriorated Bridge Deck Slab by Adhesion of Precast Panels

Research Project

Project/Area Number 05650431
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 土木材料・力学一般
Research InstitutionGifu University

Principal Investigator

KOYANAGI Wataru  Gifu University, Department of Civil Engineering, Professor, 工学部, 教授 (30025928)

Co-Investigator(Kenkyū-buntansha) UCHIDA Yuichi  Gifu University, Dept. of Civil Engineering, Assistant Professor, 工学部, 助教授 (20213449)
栗原 哲彦  岐阜大学, 工学部, 助手 (50262746)
Project Period (FY) 1993 – 1994
Project Status Completed (Fiscal Year 1994)
Budget Amount *help
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1994: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1993: ¥1,400,000 (Direct Cost: ¥1,400,000)
KeywordsConcrete slab / Rehabilitation / Precast panel / Epoxy resin / Gluing / Strength / Deformation capacity
Research Abstract

Experimental studies were made on the rehabiltation method of deteriorated bridge deck slab where thin precast panels were glued on the reinforced concrete slab deck with epoxy resin.Beam and slab type model specimens were made and loaded to the ultimate collapse and the utility of this developed method was examined. Principal conclusions derived are as follows ;
1) The method, which consists of two sheets of slate plates glued on the surface of concrete slab, is cocluded to be very effective in rehabilitation of bridge deck. The reason is that the glued layrs play the roll of not only physical strengthening but also water proof coating. Fatigue life of bridge deck becomes longer largely by the effect from the latter.
2) Specimens with this rehabilitaion method largely increased their strength and ductility under static loading. The increase of deformation capacity was remarkable in comparison with the ordinary reinforced concrete specimen of the same dimension.
3) In the tests of partial bonding, static strength decreased when the glued area in each plate became less than 25%. However, it did not seem to be affected when it was over 50%.
4) The strength reduction by high temperature was observed when the temperature was higher than 60 C.
5) Moisture content of the glued surface affected largely on the deformation property. The surface must be kept as dry as possible in the course of gluing operation.

Report

(3 results)
  • 1994 Annual Research Report   Final Research Report Summary
  • 1993 Annual Research Report
  • Research Products

    (3 results)

All Other

All Publications (3 results)

  • [Publications] 小柳 洽 他3名: "D-RAP工法と小型はり試験(発表予定)" コンクリート工学年次論文報告集. 17. (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] Wataru KOYANAGI et. al.: "Experimental Studies on Rehabilitation Method of Deteriorated Bridge Deck" Proc. of The Japan Concrete Institute. 17. (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1994 Final Research Report Summary
  • [Publications] 小柳 洽 他3名: "D-RAP工法と小型はり試験" コンクリート工学年次論文報告集. 17(発表予定). (1995)

    • Related Report
      1994 Annual Research Report

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Published: 1993-04-01   Modified: 2016-04-21  

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