In today’s world affordable and mass housing plays a vital role in human development. Due to population growth, economic conditions development in building construction, a deficit in raw material leads to an increase in raw material cost. Concrete structural material that in modern times is made by post-tensioned and prestressed concrete is introduced in modern technology nowadays, In the modern world, we have constructed the R.C.C Framed structures only, for that structure can retain as Strengthening technique used as rehabilitation for the traditional building as it is as per actual strength before and after. This project we carried out for the experimental study on the strengthening of RC member before and after rehabilitation, for what extend level it can by capable to stability on maximum load and crack pattern developing in these sectional properties of structures we have to investigate and carried out the critical load and find analytically and experimentally. In this study, we can analysis of structure theoretical and practically proved by experimental study. The objective of this study is to produce concrete column and beams casting as per the high-performance concrete grade M25 to M40 as per the bonding strength by using raping material with construction chemicals. For this, cast by mold and also done Laboratory tests are conducted to study the behavior of column and beam subjected to critical loading. The load test results showed that the load carrying capacity for this crack paternity stability to carry the critical load for beam and column, we proved as theoretical and practically by using experimental study on strengthening of beam and column.