STUDIES ON EFFECT OF SEWAGE WATER ON NATURAL CONCRETE AND RECYCLED CONCRETE

Concrete is the premier construction material across the world and the most widely used in all types of Civil engineering works, including infrastructure, low and high-rise buildings, defense installations, environment protection and local/domestic developments. However, in recent years the wisdom of our continued wholesale extraction and use of aggregates from natural resources has been questioned at an international level. This is mainly because of the depletion of quality primary aggregates and greater awareness of environmental protection. In light of this, the availability of natural resources to future generations has also been realized. In fact many governments throughout the world have now introduced various measures aimed at reducing the use of primary aggregates and increasing reuse and recycling, where it is technically, economically, or environmentally acceptable .The project explores a theme on the need for recycled aggregates and highlights its potential use as aggregate in new concrete construction. Research comprises of studies on effect of sewage water on normal concrete and recycled concrete for which concrete cubes of natural aggregate and recycled aggregate were casted and immersed in plain water and sewage water for 28 days in order to know the detoriation in concrete due to sewage water for which comparison of compressive strength of both normal concrete and recycled concrete is done. Studies on effect of sewage water on normal concrete and recycled concrete gave a result that strength of recycled concrete as compared to normal concrete is lower but it has sufficient strength which can be used for sewage construction like manholes, chambers, carriage ways, sewer pipes etc.