Experimental Studies on Strength and Durability Characteritics of Very High Volume Fly Ash Concrete

S Kandasamy¹

¹Professor, Department of Civil Engineering, Teegala Krishna Reddy Engineering College, Hyderabad, India.

Abstract

The demand for concrete as a construction material has increased due to its durability and low cost, the growth of the world’s population and the rapid development of the construction industry. The increased usage of concrete consequently increases the use of Portland cement and leads to high emissions and energy consumption. In consideration of the environmental concerns, the reduction of the use of Portland cement by replacing part of it with supplementary cementitious materials such as fly ash has become extremely important. The research presented here aims to replace 65% of cement with fly ash in the production of very high volume fly ash concrete.The experimental results showed that the compressive strength and split tensile strength were significantly improved when 3g of lime water added. However, after adding of lime water (6g and 12g) the compressive strength and split tensile strength is not increased significantly. But higher than that of reference concrete. The durability aspect of investigation showed that the water absorption and sorptivity values significantly reduced when 3g of lime water added to concrete. In further adding of lime water (6g and 12g) there is no reduction. However it shows that the lower value when compare with reference concrete.

Keywords

• VeryHigh volume fly ash concrete, Strength, Water absorption, Sorptivity

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Cite this Article as Follows

S Kandasamy. Experimental Studies on Strength and Durability Characteritics of Very High Volume Fly Ash Concrete. International Conference on Global Environmental Changes and Sustainable Development (2019): 86. Print.