Evaluation of partial Replacement of Fine Aggregate by Quarry Dust in Fiber Reinforced Concrete

Evaluation of partial Replacement of Fine Aggregate by Quarry Dust in Fiber Reinforced Concrete

K. Pradeep1, P. Lavanya Devi2, Sarella Chakravarthi3

1M. Tech Student, Department of Civil Engineering, Srinivasa Institute of Engineering and Technology

2Assistant Professor, Department of Civil Engineering, Srinivasa Institute of Engineering and Technology

3Associate Professor, Department of Civil Engineering, Srinivasa Institute of Engineering and Technology

Abstract - The present study investigates the possible utilization of Quarry dust in the Fiber Reinforced Concrete (FRC) as a fine aggregate using mechanical properties of hardened concrete. Further, the mechanical properties and life cycle assessment is compared with the conventional concrete. The fine aggregates are replaced with quarry dust by 10%, 20% and 30% and evaluated in terms of compressive strength, split tensile strength and flexural strength for M30 grade of concrete at 7 and 28 days of curing period. From the results, the there is a significant improvement in the strength of the FRC when fine aggregate is replaced with QD in terms of compressive strength, split tensile strength and flexural strength. The workability of the concrete is also improved with the addition of the QD in the FRC due to presence of smooth surfaces with the addition of the QD. The addition of QD in the FRP saves the environment and it is a eco-friendly process. However, the cost of the manufacturing of FRP is almost same as that of the nominal concrete.

Key Words:  Concrete, Fiber, Quarry dust, cost analysis