高流動コンクリート(1)

[V-432] Study on evaluation of material separation resistance of self-compacting concrete requiring vibrational compaction by use of test method for compactability using U-shaped container

〇Hiroshi Takenaka¹, Toshiyuki Nakamura², Hiroshi Hamada³, Syuji Matsumoto⁴, Kosuke Minami⁵, Shinichiro Hashimoto⁶, Hiroshi Nemoto⁷, Jun LIANG⁸, Yoshitaka Kato⁹, Iwao Mimoto¹⁰ (1.TOYO CONSTRUCTION, 2.Oriental Shiraishi Corporation, 3.TOA CORPORATION, 4.KAJIMA CORPORATION, 5.MAEDA CORPORATION, 6.Chiba Institute of Technology, 7.SHIMIZU CORPORATION, 8.TAISEI CORPORATION, 9.TOKYO UNIVERSITY OF SCIENCE, 10.Uchiyama Advance Co.)

Keywords:Self-compacting concrete requiring vibrational compaction, Test method for compactability using U-shaped container, Material separation resistance, Compactability, Fresh concrete

Recently, "self-compacting concrete requiring vibrational compaction," which is expected to spread in order to improve productivity, has the characteristics of higher fluidity and superior workability than slump concrete. This concrete is required to ensure sufficient material separation resistance and to perform appropriate vibration compaction. In this study, the material separation resistance of this concrete was considered by use of test method for compactability using U-shaped container.