Effects of incorporating banana skin powder (BSP) and palm oil fuel ash (POFA) on mechanical properties of lightweight foamed concrete

Mohamad, N. and A. Samad, A. A. and Lakhiar, Muhammad Tahir and Mydin, Md Azree Othuman and Jusoh, Suriani and A., Sofia and Efendi, Suaidi Azis (2018) Effects of incorporating banana skin powder (BSP) and palm oil fuel ash (POFA) on mechanical properties of lightweight foamed concrete. International Journal of Integrated Engineering, 10 (9). pp. 169-176. ISSN 2229-838X

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Abstract

This paper presents the effects of agricultural wastes on the mechanical properties of lightweight foamed concrete, LFC. The agricultural wastes utilized in this research are banana skin powder (BSP) and palm oil fuel ash (POFA) as cement and sand replacement, respectively. Physical and chemical tests were conducted to determine the chemical composition and particle size of both BSP and POFA. These chemical and physical properties of the raw materials are important in understanding the effects they have on the mechanical properties of lightweight foamed concrete incorporating BSP and POFA, which is designated as LFC-BSP-POFA. Cube, cylindrical, and prism specimens of LFC-BSP-POFA with density of 1800kg/m³ were cast and tested to determine its compressive strength, tensile strength, modulus of elasticity and flexural strength. Twelve (12) LFC-BSPPOFA mixtures were prepared with content of BSP as cement replacement of 0%, 0.2%, 0.4%, 0.6%, 0.8% and 1% by weight. For each mixture, the content of POFA as sand replacement are 0% and 15%. It was found that BSP and POFA each contain 55.98% and 51.83% silicon dioxide, and 2.71% and 2.32% aluminum oxide, respectively. The particle size for these two materials as obtained from PSA test showed that both materials are considered as fine particles, which is within 0.1μm to 250 μm. These chemical composition and particle size of BSP and POFA contribute to the pozzolanic reaction in LFC. This is proven by the results obtained from the mechanical properties tests which show that the incorporation of both BSP and POFA as cement and sand replacement have some significant effects on the mechanical properties of LFC. The increase percentage of BSP and POFA incorporated in LFC had shown slight increment in its mechanical properties.

Item Type:	Article
Uncontrolled Keywords:	Agricultural waste; lightweight foamed concrete; chemical and physical properties; mechanical properties
Subjects:	T Technology > TH Building construction > TH1000-1725 Systems of building construction. Including fireproof construction, concrete construction
Divisions:	Faculty of Civil Engineering and Built Environment > Department of Civil Engineering : Structural and Materials Engineering
Depositing User:	Miss Afiqah Faiqah Mohd Hafiz
Date Deposited:	22 Nov 2021 03:33
Last Modified:	22 Nov 2021 03:33
URI:	http://eprints.uthm.edu.my/id/eprint/3804

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