Mr. Tokumu Azeyanagi won the Best Presentation Award at the international conference on sustainable civil engineering and architecture (ICSCEA) 2019 held on 24-26 October, 2019 in Ho Chi Minh City. Vietnam. This award praised for his excellent presentation on the paper entitled “Influence of Molar Concentration of Sodium Hydroxide Solution on High Temperature Resistance of Geopolymer Paste".