コンクリート部材及びその打設方法とセグメント

Japanese Patent JP7424875

B2

To improve a compressive force and increase a strength even under a condition where a high compressive force acts.SOLUTION: A segment 2 includes a high-strength concrete portion 15 that includes a reinforced frame 16 and is made of concrete, an ultra-high strength concrete portion 14 that includes joint surfaces 7 disposed on both sides of the high-strength concrete portion 15 and having a higher strength than the high-strength concrete portion 15 and includes a main reinforcement 18 of the reinforced frame 16 extended inside. A wire mesh 17 is disposed between the high-strength concrete portion 15 and the ultra-high strength concrete portion 14. The reinforced frame 16 is disposed in a frame, and the coarse wire meshes 17 are disposed on both ends thereof. Concrete C is installed and hardened in a space between the wire meshes 17 in the frame, and the high-strength concrete portion 15 is manufactured. Thereafter the concrete C with a large proportion of cement than the space on both sides of the high-strength concrete portion 15 is installed and the ultra-high strength concrete portion 14 is manufactured.SELECTED DRAWING: Figure 4

Ryuichi Yamaguchi
Ryoichi Shimizu
Kazuhiro Kobayashi

JP2020044574A

January 30, 2024

March 13, 2020

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Ihi Building Materials Industry Co., Ltd.

E21D11/08

JP2007321518A
JP2005194743A
JP2010030157A
JP2003269095A

Kazuzumi Nishizawa
Yuichiro Shimizu
Hisanori Takahashi
Takuto Tanno

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