The disposal of construction and demolition (C&D) waste requires huge land and also creates lot of environmental problems that are related to air, water and ground pollution. On the other side, the demand of aggregates is increasing and estimated to be about 5.5 billion tonnes by this year. The thesis work aims to facilitate 100% recycling of waste concrete as aggregates and fines, and consists of three phases: (i) Development of the recycling process, (ii) Performance evaluation of recycled aggregates in concrete, and (iii) Characterisation of concrete fines and its application. The presentation will focus on the development of the thermo-mechanical beneficiation process and performance of coarse aggregates in concrete. The properties of beneficiated recycled coarse aggregates were found comparable to the pristine aggregates, and better than the conventional crushed recycled aggregates. Further, the mechanical characterisation and durability tests indicate that, even at 100% replacement ratio, the compressive, flexural and fracture responses are comparable to the reference concrete with pristine aggregates. However, there is a marginal reduction in the workability. Interestingly, the durability of concrete improved with high replacement of pristine aggregates with recycled aggregates. The results show generally indicate the suitability of recycled coarse aggregates for the production of structural concrete.