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Home List of Titles Investigation into bond behaviour of a new CFRP anchorage system for concrete utilising a mechanically strengthened substrate
Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/85995
- Investigation into bond behaviour of a new CFRP anchorage system for concrete utilising a mechanically strengthened substrate
- Kalfat, R.; Al-Mahaidi, R.
- Failure of CFRP strengthening systems when applied to concrete structures is usually typified by de-lamination of the CFRP from the concrete substrate. To prevent this type of failure, current standards and design guidelines impose strict limitations on the maximum strain level of the composite material which may be utilised in design. Emerging research has shown that anchoring the ends of the CFRP plates or sheets can result in a significantly higher load/stress being reached before de-bonding occurs. This paper investigates a method of anchoring CFRP laminates by utilisation of a mechanical chase cut into the concrete over the anchorage length. Experiments have shown this to be an effective way to improve the strength of the concrete substrate, resulting in higher CFRP bond strength and improvements in maximum elongations, bond stress, slip and load carrying capacity of the CFRP to concrete joint.
- Publication type
- Journal article
- Research centre
- Swinburne University of Technology. Faculty of Engineering and Industrial Sciences
- Composite Structures, Vol. 92, no. 11 (Oct 2010), pp. 2738-2746
- Publication year
- FOR Code(s)
- 0905 Civil Engineering; 0915 Interdisciplinary Engineering
- Anchorage systems; Bond behaviour; CFRP; Mechanical chase; Substrate strengthening
- Publisher URL
- Copyright © 2010 Elsevier Ltd.
- Peer reviewed