Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering
Online ISSN : 1884-7242
Print ISSN : 1882-2789
ISSN-L : 1882-2789
Role of Ashes From Oil-Palm Waste in Concrete
Zakaria HOSSAINAbdul AWAL
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JOURNAL FREE ACCESS

2007 Volume 2007 Issue 252 Pages 609-616,a1

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Abstract

It is evident that the oil-palm wastes and its product, such as, the ashes obtained after burning the oil-palm fi bers and oil-palm kernel shells are becoming a serious environmental problem, especially, in Malaysia and tropical region in the globe. These ashes, which are not only thrown away without any commercial return but also a huge amount of money is being spent for its disposal, have been investigated in the production of concrete. This paper highlights some test results on the performance behavior of concrete incorporating palm oil fuel ash (POFA) as a partial replacement of ordinary Portland cement (OPC). It is demonstrated that the use of POFA in concrete not only improved workability but also reduced bleeding significantly. Result on compressive strength reveals that it has been possible to replace cement by 30% POFA without any loss of strength. Along with strength, some durability performance data of concrete in aggressive chemical environments are also presented and discussed. It was observed that the concrete with POFA exhibited better resistance against acid, sulphate and chloride attacks at all periods of immersion than the concrete with OPC. Experimental investigations, based on short and long-term study suggest that palm oil fuel ash can suitably be used as a prospective cement replacement material in concrete construction.

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