Fracture Evaluation of Multi-layered Precast Reinforced Geopolymer-Concrete Composite Beams by Incorporating Acoustic Emission into Mechanical Analysis

Arash Behnia; Navid Ranjbar; Hwa Kian Chai; Alengaram Ubagaram Johnson; Mohd Zamin Jumaat

doi:10.1016/j.conbuildmat.2016.09.144

Fracture Evaluation of Multi-layered Precast Reinforced Geopolymer-Concrete Composite Beams by Incorporating Acoustic Emission into Mechanical Analysis

Arash Behnia (Lead Author), Navid Ranjbar, Hwa Kian Chai, Alengaram Ubagaram Johnson, Mohd Zamin Jumaat

School of Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Pages (from-to)	274–283
Journal	Construction and Building Materials
Volume	127
Early online date	6 Oct 2016
DOIs	https://doi.org/10.1016/j.conbuildmat.2016.09.144
Publication status	Published - 30 Nov 2016

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CONBUILDMAT-D-16-00313R1_Final DraftAccepted author manuscript, 3.3 MB

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title = "Fracture Evaluation of Multi-layered Precast Reinforced Geopolymer-Concrete Composite Beams by Incorporating Acoustic Emission into Mechanical Analysis",

abstract = "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. ",

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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

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EP - 283

JO - Construction and Building Materials

JF - Construction and Building Materials

SN - 0950-0618

ER -

Fracture Evaluation of Multi-layered Precast Reinforced Geopolymer-Concrete Composite Beams by Incorporating Acoustic Emission into Mechanical Analysis

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