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Advances in Materials Science and Engineering
Volume 2014 (2014), Article ID 626425, 7 pages
http://dx.doi.org/10.1155/2014/626425
Research Article

Effect of Fly Ash on Mortar Mixes with Quarry Dust as Fine Aggregate

1Department of Civil Engineering, National Institute of Technology, Patna, India
2Department of Civil Engineering, Birla Institute of Technology, Patna, India

Received 22 October 2013; Accepted 12 February 2014; Published 27 March 2014

Academic Editor: Sridhar Komarneni

Copyright © 2014 Baboo Rai et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper presents the results of an experimental investigation carried out to evaluate the compressive strength and transverse strength of 1 : 3 mortar mixes in which natural sand was replaced with 20%, 50%, and 100% quarry dust by weight which were further modified by partially replacing cement with four percentages (15%, 20%, 25%, and 30%) of low calcium fly ash. The compressive strength was determined at 3, 7, 28, and 50 days of age while transverse strength was determined at 28 and 50 days age. Test results revealed that the combined use of quarry rock dust and fly ash exhibited excellent performance due to efficient microfilling ability and pozzolanic activity.