Effect of Mechanical Properties of Recycled Aggregate Concrete Addition with Glass Fibers

Abstract

Recycled Aggregate Concrete (RAC) is a specially developed concrete for concreting under the condition of inaccessibility from heights. Concrete is weak in tension and to make it strong in tension addition of anti-crack high dispersion glass fibers are added. The RAC mix prepared with the addition of discontinuous glass fibers is called Glass Fiber Recycled Aggregate Concrete (GF-RAC). In this research work, an experimental study has been approved to check the effect of anti-crack high dispersion glass fibers on the comp. strength, tensile strength, and flexural strength of RAC. The result shows that, as compared to the RAC, the CS of GFR-RAC increases by 2.80 percent and 12.42 percent, the tensile strength of GF-RAC increases by 4.47 percent and 25.12percent, and the flexural strength of RAC increases by 6.57percentand 14.34percentwhen the Cem-FIL Anti-Crack HD glass fibers were added as 0.25percent and 0.50percentby the weight of total cementitious material contents. The addition of 0.25percentCem-FIL Anti-Crack HD glass fibers to RAC has not much effect on the workability of RAC and 0.50percent Cem-FIL Anti-Crack HD glass fibers reduce the workability of RAC.