日本大学生産工学部　研究報告A（理工系）第52巻第1号

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─ 32 ─Biographical Sketches of the AuthorsShohei Masuda is a student of Master Course of Department of Civil Engineering, Graduate School of Industrial Technology, Nihon University, Japan. He was born in Chiba, Japan on December 1, 1995. He received his B. Eng. in Sustainable Engineering from Nihon University in 2018.Mr. S. Masuda is a member of SIMJ (The Soc. Inorganic Materials, Japan)Masami Urawa is a professor of the College of Industrial Technology, Nihon University, Japan. He was born in Tokyo, Japan, on January 2, 1963. He received his M. Sc. from Chuo University, in 1987 and D.Eng. from Nihon University, in 2007.Dr. M. Uzawa has been engaged in the study of cement science, fresh and hardened concrete property, and civil engineering materials. He is a member of JCI, JSCE and SIMJ.