Experimental Evaluation Of Compressive Strength Of Fiber-Reinforced Concrete Using Destructive And Non-Destructive Testing Methods

Abstract

This study investigates the impact of integrating several types of fibers—glass, carbon, polypropylene, and crimped steel—into standard concrete to create Fiber Reinforced Concrete (FRC) with improved mechanical qualities and durability. This study examines both destructive (compressive strength) and non-destructive (rebound hammer, core strength) test to determine the impact of each fiber type on conventional concrete at various curing times (7, 28, 90, and 360 days). The testing findings demonstrate that crimped steel fibers improved compressive strength the most, reaching 44.00 MPa after 360 days, followed by polypropylene, carbon, and glass fibers.  Rebound Hammer tests indicate the better density and surface hardness of FRC made with steel and polypropylene fibers.The study emphasizes the importance of optimizing fiber type and dosage, revealing that a 1.5% content for steel and polypropylene fibers, and 1% for glass and carbon fibers, provides the best performance. This research supports the application of Non-Destructive methods in predicting the long-term strength, quality, and structural integrity of concrete in diverse construction environments.