To provide a recyclable plastic form for concrete placement, which can prevent the deformation of sheathing boards by the tightening force of placed concrete and fastening metal fittings, and be excellent in workability and durability.
A form 10 is provided with a plurality of rails 11 and a sheathing board 13 connecting the rails 11 and contacting placed concrete by its one side surface. The sheathing board 13 is a hollow panel made in one with a plurality of long vertically extending reinforcement ribs that connect two plates 16 and fill their internal space. The sheathing board 13 consists of vertical reinforcement ribs 18 located at the center 17 between each two rails 11 and perpendicular to the placed concrete surface, and slanting ribs 19 formed at other parts to be slanting to the placed concrete surface.
HOSONO TOSHIHIKO
JP2003221927A | 2003-08-08 | |||
JPH0726494U | 1995-05-19 |
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama