Experimental Investigations of the Bond Behavior between Carbon Rebars and Concrete in Germany

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Alexander Schumann - , CARBOCON GmbH, IU International University of Applied Sciences (Author)
  • Sebastian May - , CARBOCON GmbH (Author)
  • Maximilian May - , CARBOCON GmbH (Author)
  • Elisabeth Schütze - , CARBOCON GmbH (Author)
  • Frank Schladitz - , Chair of Concrete Structures (Author)
  • Daniel Ehlig - , Leipzig University of Applied Sciences (Author)

Abstract

In this paper, we address the relatively underexplored topic of the bond behavior between various carbon rebars and high-strength concrete. This research aims to bridge the knowledge gap in understanding how different manufacturing processes and surface profiles of carbon fiber rods influence their bond strength with concrete. Through experimental bond tests comparing different carbon fiber rebars with varied surface profiles and manufacturing methods, we observed that the achievable bond stresses are significantly influenced by these factors. One carbon rebar variant was selected based on preliminary investigations for detailed analysis. Extensive investigations were conducted on the preferred carbon rebar. Factors such as concrete strength, bond length, and testing speed were experimentally explored. The results not only corroborate many findings from traditional reinforced concrete construction but also reveal new phenomena unique to carbon rebars. These insights are crucial for advancing the application of carbon rebars in modern construction, offering a potential solution to challenges faced in conventional concrete construction.

Details

Original languageEnglish
Article number2932
JournalBuildings
Volume13
Issue number12
Publication statusPublished - Dec 2023
Peer-reviewedYes

External IDs

ORCID /0000-0002-4351-8585/work/171552914

Keywords

Keywords

  • bond, carbon rebars, non-metallic reinforcement, pull-out tests, textile reinforcement