Experimental Investigation of High-Strength Concrete Reinforced with Different Types of Fibers

Abstract

Concrete is a popular building material because it is strong, lasts long, and can be used in many different ways. It is not very good at withstanding pulling forces and can break easily, which can cause cracks. These cracks can hurt how well concrete structures work over time. Adding fibres to concrete has become a way to make it better. Fibres can help prevent cracks, make concrete more flexible, and improve how well it works. This study looks at concrete with two types of fibres: steel and glass. The study tested samples with different amounts of these fibres. The samples were made using a composition and tested after they had cured. The tests checked how strong the concrete was when squeezed, pulled, and bent. The results showed that adding both types of fibres made the concrete stronger in all the ways tested. The best mix, called Mix M3, was 17% stronger when squeezed than regular concrete. It also did better when pulled and bent. The fibres worked well together. The steel fibres stopped cracks from forming and helped the concrete hold its load even after it had cracked. The glass fibres stopped cracks from forming and spreading. Together they made the concrete tougher, more flexible, and better at absorbing energy. This means that concrete with both steel and glass fibres could be a choice for building things that need to be strong and last a long time. It could be used for buildings and roads. The findings of this study suggest that hybrid fibre-reinforced concrete can serve as a durable construction material for structural applications requiring enhanced mechanical performance and improved resistance to cracking.