Towards sustainable repairs: substrate-repair interface mode-I fracture analysis
by Cristina Zanotti; Nemkumar Banthia; Giovanni Plizzari
International Journal of Sustainable Materials and Structural Systems (IJSMSS), Vol. 1, No. 3, 2014

Abstract: An experimental programme for the optimisation of concrete structural and non-structural repair was performed. The programme focused on the development of sustainable durable repairs throughout the enhancement of substrate-repair bond and compatibility, as well as the development of efficient solutions for crack control. As part of the programme, mode-I fracture characterisation of a substrate-repair interface was addressed. The repair material was a mortar reinforced with polyvinyl alcohol (PVA) fibres. Experimental tests, crack growth resistance analysis and major results are presented and discussed in this paper. Mode-I crack growth resistance tests were performed by means of the contoured double cantilever beam (CDCB) test. Tensile fracture analysis was supported by splitting (indirect) tension tests.

Online publication date: Sat, 26-Jul-2014

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