Response of oil palm shell concrete slabs subjected to quasi-static and blast loads

Alengaram, UJ; Mohottige, NHW; Wu, C; Jumaat, MZ; Poh, YS; Wang, Z

Response of oil palm shell concrete slabs subjected to quasi-static and blast loads

Alengaram, UJ Mohottige, NHW Wu, C

Jumaat, MZ Poh, YS Wang, Z

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Publication Type:: Journal Article
Citation:: Construction and Building Materials, 2016, 116 pp. 391 - 402
Issue Date:: 2016-07-30

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Field	Value	Language
dc.contributor.author	Alengaram, UJ	en_US
dc.contributor.author	Mohottige, NHW	en_US
dc.contributor.author	Wu, C https://orcid.org/0000-0001-6786-7934	en_US
dc.contributor.author	Jumaat, MZ	en_US
dc.contributor.author	Poh, YS	en_US
dc.contributor.author	Wang, Z	en_US
dc.date.issued	2016-07-30	en_US
dc.identifier.citation	Construction and Building Materials, 2016, 116 pp. 391 - 402	en_US
dc.identifier.issn	0950-0618	en_US
dc.identifier.uri	http://hdl.handle.net/10453/122734
dc.description.abstract	© 2016 Elsevier Ltd. All rights reserved. A series of quasi-static and blast tests was conducted to investigate resistance capacity of concrete slabs in which conventional crushed granite aggregates were wholly replaced with oil palm shell (OPS) as a coarse aggregate. A control specimen using Normal Concrete (NC) using conventional aggregate of similar strength was also prepared and tested for comparison. Two types of OPS concrete (OPSC) slabs were developed-with and without steel fibres (SF) and tested. LVDTs, pressure transducers and accelerometers were used to record data of response of the slabs subjected to quasi-static load and blast loads of 1, 5 and 10 kg TNT. The recorded data were then analysed and compared and conclusions were made on the effectiveness of OPS as a coarse aggregate. It has been found that OPSC outperformed NC slab when subjected to 10 kg TNT as the ductile OPSC panel was intact and had no shrapnels. Through the ductility behaviour of OPSC, it exhibited multiple cracks and the impact resistance of OPS through its energy absorption due to fibrous content within OPS itself was visible both in crack pattern and in its propagation. Though OPS is of organic nature, its resistance to blast waves was observed as the huge fire ball created due to blast had no or little effect on the OPSC panels. The OPS Fibre Reinforced Concrete (OPSFRC) also exhibited blast resistance characteristics, but uneven distribution of fibres and harsh mix with 3% of steel fibres resulted in larger crack width and fibre pull-out failure. Overall, the behaviour of OPSC in blast resistance characteristics is noteworthy and further tests are required to envisage the use of appropriate fibre content in OPSC.	en_US
dc.relation.ispartof	Construction and Building Materials	en_US
dc.relation.isbasedon	10.1016/j.conbuildmat.2016.04.103	en_US
dc.subject.classification	Building & Construction	en_US
dc.title	Response of oil palm shell concrete slabs subjected to quasi-static and blast loads	en_US
dc.type	Journal Article
utslib.citation.volume	116	en_US
utslib.for	0905 Civil Engineering	en_US
utslib.for	1202 Building	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	116	en_US

Abstract:

© 2016 Elsevier Ltd. All rights reserved. A series of quasi-static and blast tests was conducted to investigate resistance capacity of concrete slabs in which conventional crushed granite aggregates were wholly replaced with oil palm shell (OPS) as a coarse aggregate. A control specimen using Normal Concrete (NC) using conventional aggregate of similar strength was also prepared and tested for comparison. Two types of OPS concrete (OPSC) slabs were developed-with and without steel fibres (SF) and tested. LVDTs, pressure transducers and accelerometers were used to record data of response of the slabs subjected to quasi-static load and blast loads of 1, 5 and 10 kg TNT. The recorded data were then analysed and compared and conclusions were made on the effectiveness of OPS as a coarse aggregate. It has been found that OPSC outperformed NC slab when subjected to 10 kg TNT as the ductile OPSC panel was intact and had no shrapnels. Through the ductility behaviour of OPSC, it exhibited multiple cracks and the impact resistance of OPS through its energy absorption due to fibrous content within OPS itself was visible both in crack pattern and in its propagation. Though OPS is of organic nature, its resistance to blast waves was observed as the huge fire ball created due to blast had no or little effect on the OPSC panels. The OPS Fibre Reinforced Concrete (OPSFRC) also exhibited blast resistance characteristics, but uneven distribution of fibres and harsh mix with 3% of steel fibres resulted in larger crack width and fibre pull-out failure. Overall, the behaviour of OPSC in blast resistance characteristics is noteworthy and further tests are required to envisage the use of appropriate fibre content in OPSC.

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http://hdl.handle.net/10453/122734