Enunciation of embryonic palm oil clinker based geopolymer concrete and its engineering properties
Document Type
Article
Publication Date
2-7-2022
Abstract
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.
Keywords
Palm oil clinker, Geopolymer concrete, Lightweight concrete, Mechanical properties, Ductility, Failure mechanism, Compression toughness
Divisions
sch_civ
Funders
University of Malaya's Research Grant under the Faculty Programme [Grant No: GPF050A2020]
Publication Title
Construction and Building Materials
Volume
318
Publisher
Elsevier Science Ltd
Publisher Location
THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND