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“Promoting excellent eco-friendly concrete of Korea to the world”
Choi Se-jin, Professor at Wonkwang University Eco-friendly Convergence Construction Materials Research Institute 

The Wonkwang University Eco-friendly Convergence Construction Materials Research Institute opened its door in 2015 under the leadership of Professor Choi Se-jin with the goal to promote eco-friendly concrete of Korea to meet the ever increasing demand for unharmful materials in the construction industry. Choi is received as an authority in the field of eco-friendly concrete. He obtained a PhD from Chungnam National University and engaged himself in U.C. Berkeley, Sampyo Technical Institute, Pohang Research Institute of Industrial Science & Technology, and POSCO Architecture Research Group before taking the current professor’s position at Wonkwang University since 2015. He published around 170 academic papers domestic and abroad, obtained 20 patents and NET(New Excellent Technology Authentication), listed his name in IBC (International Biographical Centre) and Marquis Who’s Who for 5 years in a row. “Cement is one of the core materials of concrete taking up 10~20% of the whole volume and plays the role to increase bonding strength of aggregate. The problem is that it produces considerable amount of carbon dioxide, one of the main causes of green house effect, during the manufacturing process. That’s why I’ve spent years of my research on research and development of eco-friendly concrete” says Choi. He used blast furnace slag and fly ash to minimize carbon dioxide and attracted a great attention from the industry officials by developing eco-friendly concrete with enhanced strength and durability. “I and my team raised the alternative ratio to 50% as opposed to the current 20 to 30% and our recent development raised it even further to 70 to 80% with better intensity and durability.” The technology also is proved to effectively reduce green-house gas emission and is received as a good alternative for using industrial by-products effectively. Based on these achievements, Choi and his team are pushing forward ‘Research on Low Cement Type Industrial By-Products Concrete’ and ‘Converged Research on Eco-friendly New Materials-Applied High Performance Concrete’; the researches are divided into various sub research projects relating to concrete and all research projects are backed up by continuous attendance in conferences home and abroad as well as regular seminars and workshops. Some of the team members proved their research capabilities by winning the grand prize at the Construction Recycled Resources Digital Poster Competition for twice in a row in 2015 and 2016. In recognition, Choi also was awarded the leadership prize. “I and my team will do our best until the eco-friendly concrete technology of Korea is recognized in the world.” 

Note: <Power Korea> “rewrites” the Korean article in English “concisely” for native English speakers and staff of foreign missions in Korea.


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