TY - JOUR
T1 - Fracture Evaluation of Multi-layered Precast Reinforced Geopolymer-Concrete Composite Beams by Incorporating Acoustic Emission into Mechanical Analysis
AU - Behnia, Arash
AU - Ranjbar, Navid
AU - Chai, Hwa Kian
AU - Ubagaram Johnson, Alengaram
AU - Jumaat, Mohd Zamin
PY - 2016/11/30
Y1 - 2016/11/30
N2 - Geopolymer concrete derived from industrial wastes has been innovatively used to increase ductility of precast concrete beams in a dual-layer casting approach. Laboratory investigations showed marked improvement of beam samples in toughness, post peak behaviour and ductility. This is also one of the first studies that utilise acoustic emission (AE) measurements in assessing fracture behaviour with good success. This study adds weight to further justifying the effectiveness of geopolymer concrete composites used in standard concrete structural members to achieved sustainability goals without sacrificing cost-performance, and suggesting the usefulness of AE technique for comprehensive fracture mechanics study of brittle materials.
AB - Geopolymer concrete derived from industrial wastes has been innovatively used to increase ductility of precast concrete beams in a dual-layer casting approach. Laboratory investigations showed marked improvement of beam samples in toughness, post peak behaviour and ductility. This is also one of the first studies that utilise acoustic emission (AE) measurements in assessing fracture behaviour with good success. This study adds weight to further justifying the effectiveness of geopolymer concrete composites used in standard concrete structural members to achieved sustainability goals without sacrificing cost-performance, and suggesting the usefulness of AE technique for comprehensive fracture mechanics study of brittle materials.
U2 - 10.1016/j.conbuildmat.2016.09.144
DO - 10.1016/j.conbuildmat.2016.09.144
M3 - Article
SN - 0950-0618
VL - 127
SP - 274
EP - 283
JO - Construction and Building Materials
JF - Construction and Building Materials
ER -