ISSN(Online) : 2319-8753 ISSN (Print) : 2347-6710 International Journal of Innovative Research in Science, Engineering and Technology (An ISO 3297: 2007 Certified Organization) Website: www.ijirset.com Vol. 6, Issue 6, June 2017 Copyright to IJIRSET DOI:10.15680/IJIRSET.2017.0606011 10200 Properties of Polypropylene Fiber Reinforced Concrete and Structural Behaviour of Beam Mr.Ashish Kumar Yadav 1 , Dr.Brajkishor Prasad 2 , Dr.Virendra Kumar 3 and Meenu Mohan 4 P.G. Student, Department of Civil Engineering, NIT Jamshedpur, Jharkhand, India 1, 4 Associate Professor and Head of Department, Department of Civil Engineering, NIT Jamshedpur, Jharkhand, India 2 Associate Professor, Department of Civil Engineering, NIT Jamshedpur, Jharkhand, India 3 ABSTRACT: Concrete offers many advantages regarding mechanical characteristics and economic aspects of the construction, the brittle behaviour of the material remains a larger handicap for the seismic and other applications where flexible behaviour is essentially required. Polypropylene fiber-reinforced concrete (PFRC) has provided a technical basis for improving these deficiencies.Polypropylene is one of the cheapest and abundantly available polymers. Chemical inertness makes the polypropylene fibers resistant to most chemicals. Its melting point is high ranges between 159 ฀ - 179 ฀. So that it can withstand a working temperature of 100 ฀ for short periods without detriment to fiber properties. In the present research work the mix design of grade M25 was calculated to prepare the concrete specimens for the different proportion of polypropylene fiber such as 0 kg/m 3 , 3 kg/m 3 , 4 kg/m 3 and 5 kg/m 3 (i.e. 0%, 0.12%, 0.16% and 0.2%). For each grade of concrete, cube specimen was cast, cured and tested at 7 & 28 days to assess the compressive strength of the concrete. Cylinder and prism were cast cured and tested for each grade of concrete for 28 days maturity to assess the split tensile strength and flexural strength of the concrete. Behaviour of structural member (RCC beam) has also been studied in the present research work with different proportion of polypropylene fiber. Finally the results of specimens of various percentages of fibers in concrete have been compared and the result of the project is explained. KEYWORDS: Polypropylene fiber-reinforced concrete (PFRC), Compressive strength, Split tensile strength, Flexural strength and RCC beam. I. INTRODUCTION The capability of durable structure to resist weathering action, chemical attack, abrasion and other degradation processes during its service life with the minimal maintenance is equally important as the capacity of a structure to resist the loads applied on it. Although concrete offers many advantages regarding mechanical characteristics and economic aspects of the construction, the brittle behaviour of the material remains a larger handicap for the seismic and other applications where flexible behaviour is essentially required. Recently, however the development of PFRC has provided a technical basis for improving these deficiencies. PP fibers affects the various properties of concrete in fresh and hardened state such as compressive strength, tensile strength, flexural strength, workability, bond strength, fracture properties, creep strain, impact, crack prevention and chloride penetration. II. RELATED WORK O Kayali et al., [1] in this paper, the effect of polypropylene and steel fibers on high strength lightweight aggregate concrete is investigated. Sintered fly ash aggregates were used in the lightweight concrete; the fines were partially replaced by fly ash. The research results show that addition of steel fibers appreciably increased the ductility of light weight aggregate concrete but did not significantly affect the value of compressive strength. The value of the indirect