| 摘要 |
PROBLEM TO BE SOLVED: To provide a resin concrete composition which yields a high-strength molded product having a small shrinkage ratio and no crack, is excellent in mold-release property and yields a pipe-shaped article excellent in strength against external pressure. SOLUTION: The resin concrete composition comprises a dicyclopentadiene-modified unsaturated polyester (a), (b-1) an unsaturated polyester other than the unsaturated polyester (a) or (b-2) a vinyl ester resin (b), a polymerizable unsaturated monomer (c), an aggregate (d) and a filler (e). Here, a resin composition (1) comprising the dicyclopentadiene-modified unsaturated polyester (a), (b-1) the unsaturated polyester other than the unsaturated polyester (a) or (b-2) the vinyl ester resin (b) and the polymerizable unsaturated monomer (c) has an absorbed energy of 0.8-20 J/cm<SP>3</SP>represented by a stress-strain curve in a tensile test described by JIS-K-7113. A resin concrete pipe is also provided. COPYRIGHT: (C)2005,JPO&NCIPI
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