| 摘要 |
A floor construction material is provided to increase soundproofing and thermal insulating effects and durability by forming a frame having a hollow by blow molding and forming synthetic resin foam in the hollow of the frame by cellular molding. The floor construction material(100) comprises a frame(110) formed by blow molding and composed of an upper plate(112) provided with projected parts and retreated parts and a lower plate(114) formed on the bottom integrally to form a hollow(116) inward, and synthetic resin foam(120) formed in the hollow of the frame integrally by cellular molding. The floor construction material forms an inside bottom of a building by installing the bottom of the frame on a foundation of the building and installing a hot water pipe on the top using a holder(50), and then placing concrete. |
