Mechanical properties of old concrete—UHPFC interface

Author(s): Bassam A. Tayeh, B.H. Abu Bakar, M.A. Megat Johari
Paper category: Conference
Book title: Concrete Repair, Rehabilitation and Retrofitting III (ICCRRR)
Editor(s): M.G. Alexander, H.-D. Beushausen, F. Dehn, P. Moyo
Print ISBN: 978-0-415-89952-9
Publisher: Taylor & Francis Group
Pages: 373- 374
Total Pages: 2
Language: English

Abstract: 
This investigation was aimed at assessing the bond strength between Ultra-High Performance Fiber Concrete (UHPFC) as a repair material and Normal Concrete (NC) substrate as a mature concrete in existing structures. Splitting tensile strength and slant shear tests were performed to quantify the bond strength in indirect tension and shear, respectively. The correlation between splitting tensile strength and slant shear was assessed. It is found that UHPFC gives high bond strength at the early age of the repair process, and interacts strongly with the surface of the substrate; as a result, the failure occurred mostly in the substrate. A good correlation was obtained between the slant shear strength and the splitting tensile strength.

Online publication: 2014
Publication Type: abstract_only
Public price (Euros): 0.00