This invention is a system which helps in the preparation of cement mortar using recycled construction wastes including abandoned sand, clay bricks, concrete, paper, waste plastics, Rubber and other light materials and scrap metal which make certain the bricks are sturdy whose strength is analyzed in the system to ensure durability of the construction made using these bricks made from the mortar. In the system to identify the strength of the bricks structure created form the mortar, an assembly of sensors including temperature, stress sensor are attached to the structure of the brick and using RF unit outside the aggregation node receives stress detection data sent by a terminal node in a wireless mode, that is connected to a computing system which processes the data and inform the strength of the brick structure to the user.