One other project that I undertook was titled “Establishing a correlation between California Bearing Ratio (CBR) and Resilient Modulus (MR) for subgrade soil “. It is recently in India that the Resilient Modulus value is being considered for the design of pavements, in lieu of the CBR value. This Modulus is usually determined in the laboratory by conducting tests as per AASHTO T 307-99(2003) (1). Since the repetitive triaxial testing facility is not widely available and is expensive, few generally accepted correlations, as mentioned in IRC: 37-2012, are used. As these general correlations are prone to errors because of the difference in the conditions prevailing in India and in the United States of America, it was necessary to determine correlations that suit the Indian conditions. Various soil samples with different soil properties were taken and their Index properties, proctor density, CBR value and Resilient Modulus values were determined. Based on these, a correlation was established. This project was carried out under the guidance of the Highway Research Station (H.R.S), Chennai, too.
1. What did I learn creating this work?
This project was my final year thesis work where I worked at the Highway Research Station. I got to know more about how real-time research work is done and how it is applied to various aspects of life to make things better and easy.
2. How can the skills I used creating this work be used in other areas of my life?
Since this was a team project, I learned how to work with people and how to accommodate different ideas and opinions. I also learned how to stick to deadlines and developed time efficiency. In addition, I also learned how to present a project in front of an audience.
Working at the Highway Research Station, taught me how to be a professional and how to interact with professionals.
3. What areas of my life (curricular and co-curricular) are connected in this work?
As mentioned, this project was the driving factor for me having chosen Transportation Engineering. This project was done during my undergraduate studies.
4. What lessons have I learned? What would I have done differently? Why?
This project taught me how to be a better engineer. Since I was actively involved in other extracurricular activities like debating, oration etc. during my undergraduate studies, this project taught me how to manage time better and how to balance both academics and extracurricular activities.
When asked what I would have done differently, I wish I had started working on research even earlier. This would have helped me work on this project better and would have helped me have a deeper understanding of research.
5. How did this project help me become a better professional/student?
Given how this is the area of engineering that I want to work on, it gave me a better insight into the field of Transportation Engineering. I believe only having such hands-on experience and practical training helps a student be ready for the corporate world.
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