Effect of Rice Husk Ash Fineness on the Properties of Concrete

Sri Jayanti Dewi; Putra Jaya Ramadhansyah; Abdul Hassan Norhidayah; A. Aziz Md. Maniruzzaman; Mohd Rosli Hainin; Mohd Haziman Wan Ibrahim

doi:10.4028/www.scientific.net/AMM.554.203

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 554Effect of Rice Husk Ash Fineness on the Properties...

Effect of Rice Husk Ash Fineness on the Properties of Concrete

Abstract:

In the present research, the effect of rice husk ash fineness on the properties of concrete was studied. Eight different fineness grades of rice husk ash were examined. A rice husk ash dosage of 15% by weight of binder was used throughout the experiments. The water-to-binder ratio was 0.49 to produce concrete having target strength of 40MPa at 28 d. Workability, compressive strength and gas permeability tests were carried out to identify the properties of concrete. The results revealed that increasing the fineness of RHA by mechanical grinding was found to improve the workability of RHA blended cement concrete. In addition, the use of RHA3 with mean particle size of 9.52μm produces the concrete with good strength. Finally, significant improvement was observed in mixtures incorporating RHA in terms of permeability coefficient.

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Periodical:

Applied Mechanics and Materials (Volume 554)

Pages:

203-207

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.554.203

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Online since:

June 2014

Authors:

Sri Jayanti Dewi, Putra Jaya Ramadhansyah*, Abdul Hassan Norhidayah, A. Aziz Md. Maniruzzaman, Mohd Rosli Hainin, Mohd Haziman Wan Ibrahim

Keywords:

Concrete, Fineness, RHA, Strength, Workability

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