Abstracts eBook 1: FYP - Civil Engineering by harimi1@yahoo.fr - HTML preview

Nurul Shahhadahtul Afizah Asman

Metric No: BK10110230

Topic: Effect of Silica Fume on Palm Oil Fuel Ash (POFA) Reinforced Concrete Beams

Abstract: Palm Oil Fuel Ash (POFA) is an agrowaste ash that contains a large amount of silicon dioxide and has high potential to be used as a cement replacement. POFA can be used as a pozzolanic material where it improves the durability, reduces cost due to less use of cement and improve the strength. It will also be beneficial for the environment with respect to reducing the waste disposal volume of landfills. Previous research had showed that silica fume admixtures improve compressive strength of concrete. Percentages of silica fume added by weight of cement in POFA concrete can cause poor workability on concrete. So superplasticizer is combined in the mixtures to improve the workability. In this study, the control sample used is POFA concrete with 30-μm fineness contains 20% POFA as a cement replacement with 1% of superplasticizer. While others samples contain concrete POFA with different percentages of 5%, 10% and 15% of silica fume. POFA-1%SP without SF and POFA-1%SP with silica fume carried out several tests including compression test, flexural strength test, the test load on the beam and on the beam bending test. In conclusion, Silica fume added to POFA-1%SP will improve the concrete strength and load capacity on beams. The addition of silica fume by 5% of cement is the optimum usage.