To solve the following problem: foamed resin heat insulation materials doubling as internal and external forms, do not allow the operator to check a finished state of poured concrete, and defective construction can be concealed due to insufficient experience of the operator: and to provide a concrete form made of a foamed resin only for an external wall side of external insulation, which allows the operator to check a concrete placement surface, and does not employ plywood in the entire work, to thereby shorten a construction period and reduce construction costs.
The concrete form for the external wall is formed of: an external form 2 which doubles as the outside insulation material, and is formed by successively fitting side edges of a plurality of foamed polystyrene plates 21 into a plurality of plastic connectors 22; and an internal form 3 which is obtained by successively tying hollow panels 3a formed of a plastic translucent material, to each other, and can be repeatedly used in disassembly.
HIRAFUNE YASUMI
NISHIZAWA MASAAKI
Junzo Ogawa