EXPERIMENTAL STUDY ON STRENGTH CHARACTERISTICS OF CONCRETE WITH RECYCLED AGGREGATES AND ANALYSIS OF ITS EFFECTIVE USES IN ROAD WORKS

Visakh Suthan Pallath, G.Gangha, N.Ganapathy Ramasamy

Abstract: The objective of providing eco-friendly concrete is gaining hike in the global construction industry. The depleting resources have made the researchers to focus on sustainable development in all areas and more particularly in concrete production, due to the high rate of growth of industries and their infrastructure development, which increase the rate of consumption of concrete. The practice of recycling of demolished concrete for use in sub grades has already been set up. However a new concrete that is produced with such a recycled concrete seems to have higher porosity, lower strength and modulus of elasticity when compared to normal conventional concrete. Some of the earlier studies have attempted to improve the recycled material so as to reduce its high porosity. From review of literature it is found that studies under rural roads using recycled aggregates was done. This project deals with the use of recycled aggregates for rigid pavements replacing natural aggregates in rural roads. The tests are conducted for various proportion mix of Recycled aggregates and Natural aggregates.M30 grade of concrete is being used for the design .Aggregates at maximum size of 20mm is taken. The required strength for rigid pavements under recycled aggregates is being evaluated in this project. The ultimate aim is to attain a suitable strength on usage of recycled aggregates for rigid pavements in rural roads thus to implement cost effective nature and durability.

Keywords: sustainable development, rigid pavements, recycled aggregates etc..

DOI: https://doi.org/10.15623/ijret.2015.0403044