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Journal of Materials - Volume 2014 2014, Article ID 870247, 6 pages -

Research Article

School of Civil, Environmental and Mining Engineering, The University of Adelaide, Adelaide, SA 5005, Australia

Department of Civil Engineering, Universiti Malaysia Sarawak, Kota Samarahan, Sarawak 94300, Malaysia

Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia

Received 11 December 2013; Accepted 13 February 2014; Published 20 March 2014

Academic Editor: Gang-yu Liu

Copyright © 2014 Habibur Rahman Sobuz et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Conventional building materials are widely used in a developing country like Malaysia. This type of material is costly. Oil palm shell OPS is a type of farming solid waste in the tropical region. This paper aims to investigate strength characteristics and cost analysis of concrete produced using the gradation of OPS 0–50% on conventional coarse aggregate with the mix proportions 1 : 1.65 : 2.45, 1 : 2.5 : 3.3, and 1 : 3.3 : 4.2 by the weight of ordinary Portland cement, river sand, crushed stone, and OPS as a substitution for coarse aggregate. The corresponding w-c ratios were used: 0.45, 0.6, and 0.75, respectively, for the defined mix proportions. Test results indicate that compressive strength of concrete decreased as the percentage of the OPS increased in each mix ratio. Other properties of OPS concrete, namely, modulus of rupture, modulus of elasticity, splitting tensile strength, and density, were also determined and compared to the corresponding properties of conventional concrete. Economic analysis also indicates possible cost reduction of up to 15% due to the use of OPS as coarse aggregate. Finally, it is concluded that the use of OPS has great potential in the production of structural lightweight concrete.





Author: Habibur Rahman Sobuz, Noor Md. Sadiqul Hasan, Nafisa Tamanna, and Md. Saiful Islam

Source: https://www.hindawi.com/



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