1. Research Scholar, Dept. of Civil Engineering, Government Engineering College, Thrissur, Kerala 680009, India; Research Scholar, Dept. of Civil Engineering, A. P. J. Abdul Kalam Technological Univ., Thiruvananthapuram, Kerala 695016, India (corresponding author).
2. Professor, Dept. of Civil Engineering, Government Engineering College, Thrissur, Kerala 680009, India.
3. Associate Professor, Dept. of Civil Engineering, Government Engineering College, Thrissur, Kerala 680009, India.