Recycled aggregates RA are consists of crushed concrete, inorganic particles developed from the materials that have been already used in the structural constructions and demolition C and D debris. The aim of this thesis is to determine the strength characteristics of the recycled aggregates for application in the high strength structural concrete, which will provide a improved understanding on the properties of concrete with recycled aggregates, as an unconventional material to coarse aggregate i.e. natural aggregate in structural concrete. The aim of this thesis is to determine and compare the strength of concrete by using different percentage of the recycled aggregates. Recycled aggregate is moreover the type of artificial aggregate which is obtained from the Construction and demolition C and D wastes. The Constructions and demolitions are processes that go one after the other. The demolished building aggregate in India generally goes to waste in land filling operation. Recycling of these waste materials from building demolition can provide a better solution to this problem. The research investigation was carried out using the sieve analysis test, Specific gravity test, Water absorption test, Aggregate Impact Value AIV test, Crushing value test, Workability test Slump cone test and compressive strength test. There were total of five batches of concrete mixes, consisting of every 25 increment of recycled aggregate replacement, from 0 to 100 i.e. 0 , 25 , 50 , 75 and 100 . Bhupendra Kirar | K G Kirar "Experimental Investigational Study on the Physical Properties of a new Concrete Mixture Prepared with Recycled Aggregate" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-3 , April 2018, URL: https://www.ijtsrd.com/papers/ijtsrd10864.pdf