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

A large amount of construction waste has been dramatically increased in the last decade andenvironmental concerns on the recycling of waste has been increased. Mostly nowadays developing countriesare demolishing some million tons of concrete wastages from the old buildings. So they are using Recycledaggregates 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 purposeof 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. Sothey 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 thequality of recycled coarse aggregate by using treatment method's. The recycled coarse aggregates are weakin drying of shrinkage and creep. To control the drying of shrinkage and creep by using fly ash etc .Thestrength characteristics of natural coarse aggregate and recycled coarse aggregates. Recycled coarseaggregate are successful utilization in many countries such as European, American and Russia. This paperpresent's the investigation of strength characterstics due to effect of various temperature changes such assulphate attack, acid attack , sea water and normal water.