Abstract: In this experiment the study on strength characteristics of M20 grade concrete using manufactured fly ash coarse aggregate as a partial replacement of natural granite coarse aggregate is conducted along with the use of quarry dust as a replacement of conventional natural river sand. The aggregates were manufactured using cement in lesser quantities and fly ash in excess quantity various trail mixes were conducted and finally a suitable mix is selected for large quantity production. Mix design for fly ash aggregate concrete is done by calculating the specific gravity and water absorption of the manufactured fly ash aggregate and quarry dust since both have lower specific gravity nominal mix M20 mix design cannot be used hence design mix is done. Since the specific gravity of the fine aggregate and coarse aggregate is less the obtained concrete is lighter in weight. Cubes, beams and cylinders were casted by partial replacing natural coarse aggregate by 25%, 30%, 35%, 40%, 45% and 50% of manufactured fly ash aggregate and using quarry as fine aggregate. The strength parameters such as compressive strength, flexural strength and split tensile strength of the casted cubes, beams and cylinders were tested respectively.
Keywords: Flash aggregate, Quarry dust, compressive strength, flexural strength, tensile strength.
Title: EXPERIMENTAL STUDY ON STRENGTH CHARACTERISTICS OF CONCRETE USING FLYASH AGGREGATE AND QUARRY DUST
Author: Vinay M, Dr. V Ramesh, Geena George
International Journal of Civil and Structural Engineering Research
ISSN 2348-7607 (Online)
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