AN INVESTIGATION ON FRESH AND HARDENED PROPERTIES OF M30 CONCRETE WITH PLASTIC FIBRES AND M – SAND

The Construction industry has got several emoluments in terms of materials used as raw materials. All the materials that used as an alternative should be such that it should not affect of alter the properties of concrete such as workability, strength, durability etc., and also to contribute to the economy of the project. The usage of plastics has been increased to a greater extent in all fields, which leads to the generation of large quantum of plastic wastes. These non-degradable wastes can be recycled and reused in the field of civil engineering. Also in recent past, m-sand is popularly used in several projects as an alternative for river sand which reduces the cost and also helps in achieving uniform grain size. This article focuses on the use of plastic fibres and m-sand as replacement materials in concrete. In this work, an attempt has been made to replace the coarse aggregate with plastic fibres and m-sand with river sand to study the behavioral changes in concrete with varying proportions. The fresh properties of concrete are studied to ensure that the workability of concrete is not affected or reduced. Specimens such as cubes, cylinders and prisms has been casted and tested at the age of 28 days to study the strength of concrete with and without replacement materials. The study has been extended to analyze the structural behavior of concrete beams with optimum mix proportion