| 摘要 |
PROBLEM TO BE SOLVED: To provide a floor structure of a storehouse, a parking lot, etc., which is excellent in stationary steering resistance and weighting deformation resistance. SOLUTION: This floor structure comprises a surface layer (A), a fiber-reinforced thermosetting resin-hardened material layer (B), a hardened material layer (C), and a substrate (D). The hardened material layer (C) includes an unsaturated resin composition (c1) which contains a vinylester resin (C-1), an air-dryable vinylester resin (C-2) and a polymerizable unsaturated monomer (C-3) and in which a tensile elongation percentage based on JIS K 6301 in the case of the composition (c1) as a hardened material is 30% or more, and silica sand (c2). In the volume of the hardened material layer (C), the volume of the silica sand (c2) is in the range of 25-80 vol.%. The hardened material layer (C) has a loading deformation of 0.3 mm or less. COPYRIGHT: (C)2009,JPO&INPIT
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