Repair of corrosion damaged concrete beams without shear reinforcement using carbon fiber reinforced polymer sheets

Abdullah Al-Saidy*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Strengthening/repair of existing reinforced concrete structures has become one of the important issues in the field of civil engineering. Corrosion of reinforcement in Oman and the Middle East region is a serious problem and is the main cause of concrete structures deterioration costing millions of dollars even though the majority of such structures are at the early age of their expected service life. This paper presents the experimental results of damaged/repaired reinforced concrete beams. The experimental program consisted of reinforced concrete rectangular beam specimens reinforced with flexural reinforcement only without shear reinforcement and exposed to accelerated corrosion. The corrosion rate was varied between 5 to 7.5% which represents loss in cross sectional area of the steel reinforcement in the tension side. Damaged beams were repaired by bonding Carbon Fiber Reinforced Polymer (CFRP) U-straps and in some by CFRP sheets to the tension side to restore the strength loss due to corrosion. Test results showed that it is possible to use external shear reinforcement to enhance the strength of damaged concrete beams. In addition, combining U-straps and CFRP sheets is very effective to restore the lost strength in corrosion damaged beams.

Original languageEnglish
Title of host publicationComposites in Civil Engineering, CICE 2006
EditorsAmir Mirmiran, Antonio Nanni
PublisherInternational Institute for FRP in Construction (IIFC)
Pages597-600
Number of pages4
ISBN (Electronic)0615135862, 9780615135861
Publication statusPublished - 2020
Externally publishedYes
Event3rd International Conference on Composites in Civil Engineering, CICE 2006 - Miami, United States
Duration: Dec 13 2006Dec 15 2006

Publication series

NameComposites in Civil Engineering, CICE 2006

Conference

Conference3rd International Conference on Composites in Civil Engineering, CICE 2006
Country/TerritoryUnited States
CityMiami
Period12/13/0612/15/06

Keywords

  • Advanced composite materials
  • CFRP sheets
  • Corrosion
  • Rehabilitation
  • Retrofitting
  • Strengthening

ASJC Scopus subject areas

  • Surfaces and Interfaces

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