Volume 13 Issue 1 - March 2019

  • 1. Experimental study on properties of quartzite as unconventional material for coarse aggregate

    Authors : G. S. V. Brahmaji Rao, B. Subhan Ramji

    Pages : 15-21

    DOI : http://dx.doi.org/10.21172/1.131.04

    Keywords : Quartzite, Coarse Aggregate, Compressive Strength, Acid Exposure, Temperature Effect, High Performance Concrete.

    Abstract :

    Concrete is most commonly and widely used material in infrastructure development. Coarse aggregate is major ingredient of concrete which constitutes to about 60 to 70% in terms of volume of Concrete. The cost of coarse aggregate is increasing day by day due to its limited availability and large demand. In the present work, Quartzite is used as an alternate material to coarse aggregate and has studied various engineering and mechanical properties. Experimental studies were performed on plain cement concrete by replacing coarse aggregate up to 100% and durability studies were performed by 100% replacement of coarse aggregate. The mix design and test methods are followed in accordance with the Bureau of Indian Standards. The optimum percentage of quartzite replacement to coarse aggregate is found at 20%.The compressive strength increased at 20% and compressive strength at 100% replacement was found to be 53.2 N/mm2 and 48.8 N/mm2.The concrete made with quartzite performed well in terms of compressive strength and showed higher performance for 28,60,90,120 days than conventional concrete when exposed to sea water, acid exposure and temperature effect and showed satisfactory performance when exposed to sulphate exposure. The overall performance of quartzite is reasonably good when exposed to various weathering conditions and the same can be replaced as coarse aggregate in concrete.

    Citing this Journal Article :

    G. S. V. Brahmaji Rao, B. Subhan Ramji, "Experimental study on properties of quartzite as unconventional material for coarse aggregate", Volume 13 Issue 1 - March 2019, 15-21