24-10-2014, 09:19 AM
Abstracts: The objective of this work is to study the influence of different percentage of recycled concrete aggregate on concrete properties in order to establish a maximum percentage usable in concrete. The necessity of utilization of recycled aggregate in civil works in due to the great volume of waste materials generated in the world. Recycled concrete in the main component of old concrete and for many reasons there is a need to reuse them. Such recycling operations have the added benefit of reducing landfill disposal, while conserving primary resources and reducing transport costs. And often these materials are use in as road construction, backfill for retaining walls, low –grade concrete production, drainage, road sub-base, brickwork and block work for low cost housing. In the present study we have taken two sample of aggregate concrete, 100% normal aggregate concrete and 30% recycled aggregate and remain normal aggregate concrete with alccofine 0 %, 4% and 8 % replace with cement.