Study on Strength Characteristics by using Fully Recycled Coarse Aggregate Concrete at Various Atmospheric Conditions

Abstract

A large amount of construction waste has been dramatically increased in the last decade and environmental concerns on the recycling of waste has been increased. Mostly nowadays developing countries are demolishing some million tons of concrete wastages from the old buildings. So they are using Recycled aggregates for future construction. In this paper recycled coarse aggregate used 100%. In our research work, we have collected the demolition waste from our village cement concrete road was demolished for the purpose of renovation. The demolished road is of M20 grade concrete and age of concrete is 8years. Nowadays construction of any concrete structure requires huge amount of natural coarse aggregate. So they are using demolition waste, to reduce the cost of purchasing natural coarse aggregate. Recycled coarse aggregate are separated from the demolished waste by using equipment's. To improve the quality of recycled coarse aggregate by using treatment method's. The recycled coarse aggregates are weak in drying of shrinkage and creep. To control the drying of shrinkage and creep by using fly ash etc .The strength characteristics of natural coarse aggregate and recycled coarse aggregates. Recycled coarse aggregate are successful utilization in many countries such as European, American and Russia. This paper present's the investigation of strength characterstics due to effect of various temperature changes such as sulphate attack, acid attack , sea water and normal water.