Typical concrete has high compressive strength, low tensile strength, low resistance to cracks, and low elasticity. For tensile strength, concrete is strengthened by steel, but the tensile strength of concrete in itself does not improve. Alkaliresistant CEM-FIL glass fiber, a high tensile strength thin glass fiber material, is blended with a concrete mixture at a weight ratio of 0 to 3%. Specimen sample of concrete grade of M20, was developed and cast for post-testing. After seven and twenty-eight days, compression and flexural experiments were performed after the concrete was reinforced. Compared with the control specimen, we found a substantial improvement in compressive and flexural strength in the glass fiber reinforced sections after seven and twenty- eight days. By adding 3.0 percent glass fiber to the concrete, optimum results were achieved. Our analysis proposes reinforcing concrete with glass fiber with the ability to optimize concrete properties.