| 摘要 |
PROBLEM TO BE SOLVED: To provide a composite resin foamed body usable as a construction material, lightweight, excellent in cutting property, water resistance and resistance to load, suitable for recycling and reforming, and usable particularly as a spacer for a sub-floor material, and to provide a construction material using the same. SOLUTION: The composite resin foamed body is characterized in that, on at least one surface of a resin foamed body, preferably a resin foamed body having an average value of 1.1-4.0 as the aspect ratio Dz/Dx of indwelling cells and an expansion ratio of 3-20 times, there is laminated a fiber aggregate which has a binding point density of≥30 points/cm<SP>2</SP>and in which fiber binding parts are present within 0.5 mm from arbitrary points. The construction material using it is also provided. COPYRIGHT: (C)2007,JPO&INPIT
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