Title: Effect of corrosion on flexure, shear & torsional strength of reinforced concrete member

Biography:

Sudhir P. Patil is working as a Professor in Dr. Vishwanath  Karad, MIT-World Peace University, Pune-Maharashtra-India. He is having teaching and industrial  experience of  20 years. He  has completed  bachelor  and master’s degrees in Civil and structural  Engineering from Government College of Engineering ,Karad,   PhD from  VJTI- University of Mumbai. He is published more than 35 research papers in International and national journals and conferences. He is a member of various national technical organizations.

Abstract

With the increase in demand for construction materials, man has improved a lot in the construction techniques of structures. Reinforced concrete beams are normally designed as under reinforced to provide ductile behavior such as the moment of resistance. In coastal environment reinforcement corrosion is an obvious cause of deterioration of concrete structure, which affects the durability and service of reinforced concrete structure. Torsional strength is a measure of the shear strength of concrete, in other words it is a measure of a resistance against failure in twisting. The main aim of experimental study is to analyze the flexural, shear & torsional strength of corroded beams using Ordinary Portland Cement (OPC). The experimental accelerated corrosion technique is adopted to corrode the beam. The varying percentages of corrosion are used such as 0%, 2.5%, 5% and 7.5%. The change in strength of Reinforced Concrete beams is studied for varying percentage of corrosion.   Beam specimens are prepared using M20 grade concrete for OPC. Beam specimens are tested for flexure, shear, and torsional strength.

Bending moment decreases by 10.2%, 18.8%, 26.7% for 2.5%, 5%, 7.5% respectively as compared to 0% corrosion. Shear capacity decreases by 14.5%, 23.3%, 30.5% for 2.5%, 5%, 7.5% respectively compared to 0% corrosion. Maximum torque is decreases by 5.8%, 9.7%, 17.7% for 2.5%, 5%, 7.5% respectively as compared 0% corrosion.