Concrete structures are always externally exposed to the natural environment like the rain, beating hot sun and wind. These natural elements cause the structure to be weathered over a certain period. Maintaining the structure prevents the building from deteriorating easily and makes it durable in the long run Proper maintenance includes regular inspection of buildings which helps to identify the deteriorated elements so that they can be timely fixed on time. Consequently, the need for repair and rehabilitation has grown considerably in recent years.