Enunciation of embryonic palm oil clinker based geopolymer concrete and its engineering properties

Bashar, Iftekhair Ibnul and Alengaram, U. Johnson and Jumaat, Mohd Zamin (2022) Enunciation of embryonic palm oil clinker based geopolymer concrete and its engineering properties. Construction and Building Materials, 318. ISSN 0950-0618, DOI https://doi.org/10.1016/j.conbuildmat.2021.125975.

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Enunciation of the embryonic materials from industrial by-products is vital to address the ever-depleting virgin construction materials. The palm oil clinker (POC) is one of the industrial by-products from the palm oil industries available in abundance in Southeast Asia. POC is lightweight, and porous and hence, it is considered as a potential lightweight aggregate that could be used in normal weight and geopolymer concrete. It is imperative to exemplify the mechanical behaviour of a new material before using it in the structural application. This article presents the failure mechanism of POC-based GC (P-GC) and granite-based GC (G-GC) under compression. The compression toughness and energy absorption at elastic and plastic states due to the influence of POC at microlevel crack propagation were investigated. Further, the moment-curvatures of over-reinforced P-GC and G-GC beams were calculated from the compression load-deformation results to comprehend the feasibility of P-GC in structural application. The results show that the ultimate moment of resistances of both beams were comparable for the concretes of similar grade. The elastic limit of P-GC was lower than G-GC, hence, and the first crack initiated in P-GC earlier compared to G-GC. The midspan-deflections varied due to the difference of stiffnesses of P-GC and G-GC.

Item Type: Article
Funders: University of Malaya's Research Grant under the Faculty Programme [Grant No: GPF050A2020]
Uncontrolled Keywords: Palm oil clinker; Geopolymer concrete; Lightweight concrete; Mechanical properties; Ductility; Failure mechanism; Compression toughness
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TH Building construction
Divisions: Faculty of Engineering > Department of Civil Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 21 Jul 2022 01:45
Last Modified: 21 Jul 2022 01:45
URI: http://eprints.um.edu.my/id/eprint/33654

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