Bond behaviour of chemically prestressed textile reinforced concrete
|
|
|||||||||||
Détails bibliographiques
| Auteur(s): |
Katarzyna Zdanowicz
(Institute of Concrete Construction, Leibniz Universität Hannover, Germany)
Boso Schmidt (Institute of Concrete Construction, Leibniz Universität Hannover, Germany) Hubert Naraniecki (Institute of Concrete Construction, Leibniz Universität Hannover, Germany) Steffen Marx (Institute of Concrete Construction, Leibniz Universität Hannover, Germany) |
||||
|---|---|---|---|---|---|
| Médium: | papier de conférence | ||||
| Langue(s): | anglais | ||||
| Conférence: | IABSE Symposium: Towards a Resilient Built Environment Risk and Asset Management, Guimarães, Portugal, 27-29 March 2019 | ||||
| Publié dans: | IABSE Symposium Guimarães 2019 | ||||
|
|||||
| Page(s): | 297-303 | ||||
| Nombre total de pages (du PDF): | 7 | ||||
| DOI: | 10.2749/guimaraes.2019.0297 | ||||
| Abstrait: |
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. |
||||