STRUCTURAL PROPERTIES OF POLYPROPYLENE FIBER REINFORCED CONCRETE

Abstract

In this paper, the structural properties are studied for Compressive Strength of polypropylene fiber in concrete with natural sand. Different cut length of 20mm to 30mm with an increment of 5 and different volume fractions of polypropylene fiber 0.0% to 1% with an increment of 0.25% by weight of cement are used. Concrete mix prepared with locally available Natural sand as a normal mix is used. Concrete mixes are designed for infrastructural development industry. It has a capacity to enhance its property with the help of other suitable materials like Polypropylene Fiber. Currently man-made micro fibers and natural fibers have been incorporated into concrete. Initially natural fibers were used in concrete but it has some drawbacks mainly in durability hence man-made fibres are preferred. Man Made Polypropylene fiber is adaptable thermoplastic material which is formed by polymerizing monomer units of polypropylene molecule into very long polymer molecules or chains in the presence of channel under carefully controlled heat & pressure. Concrete mixes are designed for M20 and M30 grades for the experimentation. Mechanical, thermal and other properties are studied. There is improvement in compressive strength by addition of Polypropylene fiber in concrete.