RADICAL-CURABLE RESIN COMPOSITION, COATING MATERIAL AND CIVIL ENGINEERING BUILDING STRUCTURE EACH USING RADICAL-CURABLE RESIN COMPOSITION, AND METHOD FOR CONSTRUCTING CIVIL ENGINEERING BUILDING STRUCTURE

摘要

A radical-curable resin composition comprising a urethane methacrylate resin (A), a polyester methacrylate resin (B), and an ethylenically unsaturated monomer having a (meth)acryloyl group (C), characterized in that the urethane methacrylate resin (A) is obtained by reacting a polyisocyanate (a) with a polyether polyol (b) and then reacting the resulting product with a hydroxyalkyl methacrylate, the polyester methacrylate resin (B) is obtained by using 40 mol% or more of adipic acid as an acid component and has a number average molecular weight of 2000 to 4000, and a dicyclopentadiene unsaturated polyester resin (D) as a compatibilizer is contained in an amount of 5 to 25 parts by mass with respect to 100 parts by mass of the total amount of the resin (A) and the resin (B).