International Journal of Advanced Research in IT and Engineering ISSN: 2278-6244 Vol. 2 | No. 2 | February 2013 www.garph.co.uk IJARIE | 1 EFFECT OF DIFFERENT ASPECT RATIO OF WASTE PLASTIC FIBRES ON THE PROPERTIES OF FIBRE REINFORCED CONCRETE-AN EXPERIMENTAL INVESTIGATION Prahallada M.C* Prakash K.B** Abstract: The 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 not only improve the tensile strength of concrete but also increase in the compressive strength, flexural strength, 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’ 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. In this paper an attempt has been made to study the properties of waste plastic fibre, in the concrete, which is causing environmental pollution. The plastic is a non bio-degradable material. Hence plastic do not decay. Thus they cause the air watered ground pollution. In this experimentation the study of waste plastic plastic fibre reinforced concrete is taken up with different aspect ratios like 0, 30, 50, 70, 90, and 110. Thus the strength and workability characteristics of waste plastic fibre reinforced concrete are found in this experimentation. Keywords: Fibre reinforced concrete, Waste plastic fibres, Aspect ratio, Strength and workability characteristics *Professor, Department of Civil Engineering, Christ University Faculty of Engineering, Bangalore, Karnataka, India **Principal, Government College of Engineering, Davalagiri, Haveri, Karnataka, India