Thermou, G. orcid.org/0000-0002-9569-0176, de Felice, G., De Santis, S. et al. (4 more authors) (2018) Mechanical characterization of multi-ply steel reinforced grout composites for the strengthening of concrete structures. In: Ferrier, E., Benzarti, K. and Caron, J.-F., (eds.) CICE 2018. 9th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, 17-19 Jul 2018, Paris, France. IIFC , pp. 298-305.
Abstract
The use of externally bonded Steel-Reinforced Grout (SRG) composites, comprising Ultra High Tensile Strength Steel (UHTSS) textiles embedded in an inorganic mortar matrix, has been shown to provide an effective and costefficient solution for the repair and strengthening of existing structures. Although several studies have been carried out in the last decade to investigate the SRG-to-concrete bond behaviour, most of the existing literature examines the use of systems with a single layer of steel textile and only limited information is available on multi-ply SRG composites, which are often required for applications to large structural elements. This paper presents the preliminary results of an experimental study on SRG systems comprising multiple layers of galvanized UHTSS textiles within a geopolymer mortar. The investigation comprises three stages: 1) direct tensile tests on SRG coupons to characterize the tensile properties of the composite system; 2) lap-splice tests (for overlap length ranging from 100 mm to 300 mm) to develop an improved understanding of the textile-to-textile load transfer capacity; 3) single-lap bond tests to examine the effect on bond behaviour of number of steel textile plies (one, two or three) and steel cord density (4 and 8 cord/in) on concrete substrates. Digital Image Correlation (DIC) was used to obtain full-field displacement measurements and map crack development.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Editors: |
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Copyright, Publisher and Additional Information: | © 2019 IIFC. |
Keywords: | New composite materials, systems and strengthening techniques; Experimental study; Bond and interfacial stresses; Bond and interfacial stresses; Steel-Reinforced Grout (SRG); Digital Image Correlation (DIC) |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Civil and Structural Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 29 Jul 2019 15:18 |
Last Modified: | 29 Jul 2019 15:18 |
Published Version: | http://www.iifc.org/wp-content/uploads/2010/06/CIC... |
Status: | Published |
Publisher: | IIFC |
Refereed: | Yes |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:148973 |