耐久性一般(1)

[V-362] Influence of concrete finishing time on surface quality-ultrasonic velocity distribution and SEM image examination

〇Kazumasa Morihama¹, Daisuke Sawaki², Takehiro Sawamoto³, Masanori Higuchi⁴, Dai Akiyoshi⁵ (1.Institute of Technologists, 2.Taiheiyo Consultant, 3.Institute of Technologists, 4.Sumitomo Mitsui Construction, 5.Sumitomo Mitsui Construction)

Keywords:Slab, finishing time, Surface Quality, Scanning electron microscope(SEM), Ultrasonic Method (DOKEN Method), Distribution of Ultrasonic Velocity