Journal article
High-strength rice husk ash concrete incorporating quarry dust as a partial substitute for sand
SN Raman, T Ngo, P Mendis, HB Mahmud
Construction and Building Materials | Published : 2011
Abstract
Quarry dust is a by-product from the granite crushing process in quarrying activities. This paper presents the findings from experimental work undertaken to evaluate the suitability of quarry dust as a partial substitute for sand in high-strength concrete (HSC) containing rice husk ash (RHA). Two grades of HSC mixes, to achieve 60 MPa and 70 MPa at 28 days, were designed with and without the incorporation of RHA. Quarry dust was then used in the mixes containing RHA as a partial substitute for sand, in quantities ranging from 10% to 40%. The slump of the fresh concrete and the compressive strength development were monitored up to 28 days. Based on the results obtained, the mixes containing 2..
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Funding Acknowledgements
This research was partly supported by the University of Malaya Vot-F Research Grant. The contribution of Mr. C.H. Lee and Mr. S.L. Low who performed a significant part of the experimental work reported in this paper is duly acknowledged. The first author is grateful to the Ministry of Higher Education of Malaysia and Universiti Kebangsaan Malaysia for providing the scholarship for his Doctoral studies at The University of Melbourne, Australia. The assistance provided by Ms. Samantha Yee in proof reading this article is also duly acknowledged.