http://www.iaeme.com/IJCIET/index.asp 470 editor@iaeme.com International Journal of Civil Engineering and Technology (IJCIET) Volume 8, Issue 2, February 2017, pp. 470–486 Article ID: IJCIET_08_02_049 Available online at http://www.iaeme.com/IJCIET/issues.asp?JType=IJCIET&VType=8&IType=2 ISSN Print: 0976-6308 and ISSN Online: 0976-6316 © IAEME Publication Scopus Indexed STUDY OF DAMAGED RC BEAMS REPAIRED BY BONDING OF CFRP LAMINATES T.P. MEIKANDAAN Research Scholar, Dept of Civil Engineering, Bharath University, Chennai, Tamilnadu, India Dr. A. RAMACHANDRA MURTHY *Senior Scientist CSIR -Structural Engineering Research Centre Taramani, Chennai-113, Tamil Nadu, India ABSTRACT This paper summarizes the results of experimental studies of damaged reinforced concrete beams repaired by bonding of carbon fibre reinforced polymer (CFRP) composite laminates to the beam. Two sets of beams have to be test in this study: control beams (without CFRP laminates) and damaged and then repaired beams with different amounts of CFRP laminates by varying different parameters (damage degree, CFRP laminate width, concrete strength class).All beams have to be tested under simply supported condition .The test has to be done under two point loading using the Universal testing machine over a span of 1500 mm. The tests were carried out under displacement control. The most investigated parameter in this experimental study is damage degree (ratio between pre-cracked load and load capacity of control beam). To evaluate the strength of damaged RC beams with externally bonded CFRP laminates have the target of this project. The experimental failure modes are peeling off and interfacial de-bonding. These failure modes depend only on the laminate width. Key word: Carbon Fibre Reinforced Polymer, Concrete Beams, Flexural Strengthening, Deflection. Cite This Article: T.P. Meikandaan and Dr. A. Ramachandra Murthy, Study of Damaged RC Beams Repaired by Bonding of CFRP Laminates. International Journal of Civil Engineering and Technology, 8(2), 2017, pp. 470–486. http://www.iaeme.com/IJCIET/issues.asp?JType=IJCIET&VType=8&IType=2 1. INTRODUCTION 1.1. General The maintenance, rehabilitation and upgrading of structural members, is perhaps one of the most crucial problems in civil engineering applications. Moreover, a large number of structures constructed in the past using the older design codes in different parts of the world are structurally unsafe according to the new design codes. Since replacement of such deficient elements of structures incurs a huge amount of public money and time, strengthening has become the acceptable way of improving their load carrying capacity and extending