Presentation Information
[VI-1064]Development of spraying concrete for preventing collapse accident with flexible switching between high strength at very young age and normal strength
*Ayanori Sugiyama1, Satoru Inoue1, Nobuhiro Taniguchi2, Kenji Akiyoshi2, Tomohiro Nishimura2 (1. Taiheiyo Materials Corporation, 2. Obayashi Corporation)
Keywords:
collapse accident,tunnel face stabilized spraying method,powder accelerator,high additive ratio,strength properties,constructability
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