Fracture evaluation of multi-layered precast reinforced geopolymer-concrete composite beams by incorporating acoustic emission into mechanical analysis
Document Type
Article
Publication Date
1-1-2016
Abstract
In this study, a multi-layered steel reinforced composite beams which are composed of geopolymer concrete section at tensile zone and Portland cement based concrete at compression are investigated. The beams were tested to failure to compare the toughness, post peak behaviour and failure mode based on the variation of the depth of layers. The mechanical analysis incorporated into acoustic emission technique showed that the geopolymer beam endured more deflection than the ordinary Portland cement based beams, however their ultimate load carrying capacities were quite similar. Further, the composite beams, resulted in transition of failure mode of shear to a flexural.
Keywords
Multilayers beam, Composite, Geopolymer, Reinforced concrete beam, Fly ash, Acoustic emission, Damage, horizontal shear crack
Divisions
sch_civ
Funders
Ministry of Higher Education of Malaysia: High Impact Research Grant (HIRG) No. UM.C/HIR/MOHE/ENG/02/D000002-16001 (synthesis of blast resistant structures)
Publication Title
Construction and Building Materials
Volume
127
Publisher
Elsevier