Advancements in Materials, Vol. 2, Issue 4, Aug  2018, Pages 75-88; DOI: 10.31058/j.am.2018.24003 10.31058/j.am.2018.24003

Characteristics of Palm Kernel Shell-Concrete

Advancements in Materials, Vol. 2, Issue 4, Aug  2018, Pages 75-88.

DOI: 10.31058/j.am.2018.24003

Augustine Uchechukwu Elinwa 1*

1 Department of Civil Engineering, Faculty of Engineering and Engineering Technology, Abubakar Tafawa Balewa University, Bauchi, Bauchi State, Nigeria

Received: 31 July 2018; Accepted: 20 September 2018; Published: 22 October 2018

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Abstract

An experimental investigation on the use of palm oil shell (PKS) as partial replacement by wt. % of crushed aggregate has been evaluated. A mix ratio of 1: 1.5: 3 with a cement content of 382 kg/m3, and water-cement (w/c) ratio of 0.55, was used for concrete specimen. Four concrete mixes labeled M-00 to M-30, at replacement intervals of 10 %, were used to fabricate concrete specimens that were cured above the conventional age of 28 days (i.e. up to 90 days), before testing. The microstructure results showed that PKS used had acceptable qualities within the specified limits of lightweight aggregate, and both the workability and compressive strength of the PKS-concrete decreased as the percentage replacement was increased. It was observed that curing above the conventional age of 28 days, additional improved the strength of the concrete specimens. The optimum replacement level was at 10 %., and a linear regression model that was significant with good correlations of the statistical data was developed.

Keywords

Palm Kernel Shells, Aggregates, Compressive Strength, Microstructure, Statistical Interpretations

Copyright

© 2017 by the authors. Licensee International Technology and Science Press Limited. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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