AbstractThe inherent weakness of concrete is its less tensile strength. To improve this inherent weakness many techniques came into picture. Among them one of the best techniques is to introduce the fibres in the concrete mass. Thus fibre reinforced concrete (FRC) is a concrete in which the fibres are dispersed uniformly throughout the mass of the concrete. The fibre reinforced concrete is, playing an important role in the construction industry. The even distribution of fibres improve the tensile strength of concrete, impact strength, wear and tear resistance etc. The fibre reinforced concrete has already found a wide range of practical application and has proved reliable in construction and is a material having superior performance characteristics compared to the conventional concrete. Many types of fibres can be used for the production of fibre reinforced concrete. Many types of fibres like steel, carbon, GI, glass, asbestos fibres can be used for the production of fibre reinforced concrete. Many natural fibres and mineral fibres are also being used. Fiber Reinforced Concrete (FRC) is a composite material consisting of cement based matrix with an ordered or random distribution of fiber which can be steel, nylon, polythene, plastic fibers etc. A number of papers have already been published on the use of various fibres in concrete and a considerable amount of research has been directed towards studying the various properties of concrete as well as reinforced concrete due to the addition of fibres. Hence, an attempt has been made in the present investigations to study the influence of addition of plastic (PET bottles) fibers at a dosage of 0.5% by volume. The properties studied include the compressive strength, tensile strength and impact resistance of the standard and plastic fiber concrete. The studies were conducted on a M25 mix and tests have been carried out as per recommended procedures of relevant codes. The results are compared and conclusions are made.