| Summary: | Structures' costs continue to rise in lockstep with raw material prices. As a result, finding a sustainable source of building materials should be a top priority. Synthetic fibre was once more commonly used in concrete reinforcement, but natural fibre is gradually gaining popularity. These were used to develop low-cost materials as well as environmentally friendly structures. In recent years, natural fibres have been used in construction for thin parts such as roofing, cladding, and internal and exterior partitioning walls. Aside from that, enforcing a policy encouraging the use of natural fibre as a micro reinforcing composite in lightweight concrete structures is an effective way to reduce environmental damage. The purpose of this research is to determine the flexural and split tensile strength of concrete with 0%, 2%, or 3% coconut coir by weight of cement. Its purpose is to determine whether the fiber-reinforced concrete can withstand the applied load. A three-point bending test and a splitting tensile test (UTM) were also performed on natural fiber-reinforced concrete using a Universal Testing Machine. The addition of fibre to concrete increases its strength when compared to ordinary concrete. © 2024 Author(s).
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