PURPOSE: To make structure simple without the need for dismantlement of forms while making it available for execution of different works simultaneously, and to contribute therewith to shortening of term of works and saving of labor and resources.
CONSTITUTION: A water-impermeable sheet 12 is stuck to one side of a plasterboard 11, and a honeycombed or latticed core member 13 made of metal, plastics or paper is stuck to the sheet 12 on the side opposite to the plasterboard 11, and concrete 15 is placed to the inside of the core member 13. A water- impermeable and concrete-adherent sheet 14 may be stuck to the core member 13 on the side whereon the concrete 15 is placed. Thereby, concrete casting and backing work for interior can be executed simultaneously without the need for dismantlement of forms. As wooden materials are not used, occurrence of industrial waste can be reduced, contributing to the protection of the global environment.
TADANO HIDEKI
NAKANISHI HIROSHI
