Fracture characterization of multi-layer wire mesh rubberized ferrocement composite slabs by means of acoustic emission

This study investigated the fracture behaviour of multi-layer ferrocement composite slabs with partial replacement of tire rubber powder as filler utilizing acoustic emission (AE) technique for characterization. Ferrocement slab specimens prepared using normal-compact cement mortar, self-compact cem...

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Bibliographic Details
Published inJournal of cleaner production Vol. 157; pp. 134 - 147
Main Authors Behnia, Arash, Ranjbar, Navid, Chai, Hwa Kian, Abdullah, Aziz. I., Masaeli, Mahyar
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 20.07.2017
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Summary:This study investigated the fracture behaviour of multi-layer ferrocement composite slabs with partial replacement of tire rubber powder as filler utilizing acoustic emission (AE) technique for characterization. Ferrocement slab specimens prepared using normal-compact cement mortar, self-compact cement mortar, fly ash, and rubberized self-compact cement mortar –with varying steel mesh reinforcement layers– were statically loaded to failure. The inclusion of 10% rubber powder (by weight) was found capable of altering the failure mode of composite slabs from brittle to ductile with a slight reduction in the ultimate flexural strength. Fracture development of the specimens was closely monitored using AE for enhanced characterization. It is seemingly evident that the measured AE parameters could be effectively processed to distinguish different modes of fracture. The collected AE data was utilized to quantify stiffness reduction in the specimens due to progressive damage. •Introduction of rubber powder of tires as a partial replacement of cement in self-compact mortar.•Integrated fracture monitoring system by incorporating acoustic emission in mechanical and micro-structural analysis.•Quantification of stiffness reduction in ferrocement composite by aid of AE parameters.•Source discriminations by using of AE parameters and damage early warning system.
ISSN:0959-6526
1879-1786
DOI:10.1016/j.jclepro.2017.03.192