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Anchorage of Textile Reinforcement in High-Performance Concrete
RISE - Research Institutes of Sweden, Safety and Transport, Safety. (Mechanics Research)
RISE - Research Institutes of Sweden, Safety and Transport, Safety. (Mechanics Research)
RISE - Research Institutes of Sweden, Built Environment, CBI Swedish Cement and Concrete Research Institute.
RISE - Research Institutes of Sweden, Built Environment, CBI Swedish Cement and Concrete Research Institute.
2017 (English)Conference paper, Published paper (Refereed)
Abstract [en]

The mechanical properties of textile reinforced high-performance concrete (TRHPC) applied in innovative lightweight sandwich elements has been investigated in the framework of EC supported FP7 project, H-House (Healthier Life with Eco-innovative Components for Housing Constructions). TRHPC offers new possibilities for architects and engineers to create thinner and more durable concrete façade elements. Textile reinforcement grids are typically woven from non-metallic rovings usually consisting of continuous glass, rock or carbon fibres. The most promising performing textile reinforcement alternative in terms of mechanical and durability performance consists of carbon fibres. Carbon fibres do however have an inherent smooth surface which is unfavourable concerning its bond to the cement paste, which is often improved by polymer-based coatings. The bond behaviour, being a critical design parameter, should be investigated for TRHPC in order to understand limitations regarding required anchorage lengths for use in applications such as façade elements. The aim of this study was to quantify and verify the required anchorage length for a selected epoxy impregnated carbon textile reinforced TRHPC combination. To achieve this aim, the bond behaviour, leading to a suitable anchorage length (or overlap), was firstly studied by means of pull-out tests. Thereafter, the ultimate strength of the composite material was measured via uniaxial tensile testing with and without an overlap splice according to the findings from the pull-out tests. Optical measurements during the pull-out tests were performed using a video extensometer technique and by Digital Image Correlation (DIC) for the uniaxial tensile tests. Results indicated that the required anchorage length to yield rupture of the textile reinforcement in pull-out was deemed appropriate as an overlapping length when tested in tension. The combination of these two experimental methods on the composite level was useful for determining the overlapping length required for the TRHPC which could be applied in larger scale applications.

Place, publisher, year, edition, pages
2017. No. 36
Keyword [en]
Textile reinforced concrete, high-performance concrete, pull-out testing, bond, uniaxial tensile testing
National Category
Building Technologies
Identifiers
URN: urn:nbn:se:ri:diva-29214OAI: oai:DiVA.org:ri-29214DiVA: diva2:1087056
Conference
Eleventh High Performance concrete (11th HPC) and the Second Concrete Innovation Conference (2nd CIC,)Tromsø 6-8 March 2017
Projects
H-House
Funder
EU, FP7, Seventh Framework Programme, 608893
Available from: 2017-04-05 Created: 2017-04-05 Last updated: 2017-04-05Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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  • text
  • asciidoc
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