• Akshay Doble
• Dr. Prashant Y. Pawade
• Dr.Rashmi Bharatey

Non-destructive evaluation of existing structures is an important part and an active area of research in the civil engineering industry. Whenever a modification to a structure or its use is proposed the process begins with an evaluation of the current situation. Testing on concrete is essential because evaluating its quality is to ensure that it is of sufficient strength and durability to stand for years to come. NDT helps us monitor the health of concrete and it is very much needed to check the concrete structure. Generally, due to aging, weathering effects, overload, chemical attacks, temperature variations, the structure deteriorates and fails to provide hassle-free service throughout its life, with or without little maintenance, hence its life is shortened. This paper is a case study of various NDTs carried out on an residential building that was 30 years old and located in nearby chemical plants. Various NDT techniques have been used, such as ultrasonic pulse speed testing, carbonation testing, rebound hammer testing, and half-cell potential testing to reach the quality of the structure. These tests were performed to find voids and cracks in structural elements. The carbonation depth was checked to ensure that the cover is less than concrete or not to ensure that the reinforcement does not corrode. Finally, based on the results, structural elements requiring repair were identified.

Non Destructive Test, Rebound Hammer Test, Ultrasonic Pulse Velocity, Carbonation Test, Half Cell Potential Test, Concrete Cover Meter Test.

"RCC STRUCTURE WITH THE HELP OF NON DESTRUCTIVE TESTING AND RETROFITTING TECHNIQUES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 6, page no.1031-1036, June-2020, Available :http://www.jetir.org/papers/JETIR2006146.pdf

"RCC STRUCTURE WITH THE HELP OF NON DESTRUCTIVE TESTING AND RETROFITTING TECHNIQUES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 6, page no. pp1031-1036, June-2020, Available at : http://www.jetir.org/papers/JETIR2006146.pdf