Bond behaviour of chemically prestressed textile reinforced concrete

Research output: Contribution to journalConference articleContributedpeer-review

Contributors

  • Katarzyna Zdanowicz - , Leibniz University Hannover (LUH) (Author)
  • Boso Schmidt - , Leibniz University Hannover (LUH) (Author)
  • Hubert Naraniecki - , Leibniz University Hannover (LUH) (Author)
  • Steffen Marx - , Leibniz University Hannover (LUH) (Author)

Abstract

The bond behaviour of concrete specimens with carbon textile reinforcement was investigated in the presented research programme. Pull-out specimens were cast from self-compacting concrete with expansive admixtures and in this way chemical prestress was introduced. The aim of the research was to compare bond behaviour between prestressed specimens and non-prestressed control specimens. During pull-out tests, the pull-out force and notch opening were measured with a load cell and laser sensors. Further, bond - slip and pull-out force - crack width relationships were drawn and compared for prestressed and non-prestressed specimens. Chemically prestressed specimens reached 24% higher bond strength than non-prestressed ones. It can be therefore concluded, that chemical prestressing positively influences the bond behaviour of concrete with textile reinforcement and thus better utilisation of its properties can be provided.

Details

Original languageEnglish
Pages (from-to)297-303
Number of pages7
JournalIABSE symposium report
Volume114
Publication statusPublished - 2019
Peer-reviewedYes
Externally publishedYes

Conference

TitleIABSE Symposium Guimarães 2019
SubtitleTowards a Resilient Built Environment - Risk and Asset Management
Abbreviated titleIABSE 2019
Duration27 - 29 March 2019
Degree of recognitionInternational event
LocationPúblico Centro Cultural Vila Flôr (CCVF)
CityGuimarães
CountryPortugal

External IDs

ORCID /0000-0001-8735-1345/work/142244559

Keywords

Keywords

  • Bond behaviour, Carbon textile reinforcement, Chemical prestressing, Non-metallic reinforcement, Pull-out test