ANCHORING AGENT FOR FIXING ANCHOR BOLT AND CAPSULE FOR FIXING ANCHOR BOLT

PROBLEM TO BE SOLVED: To produce an anchoring agent that has excellent anchoring force capable of withstanding loads due to repeated loading and does not cause performance deterioration induced by an alkali contained in concrete by constituting its main components of a diester oligomer, an unsaturated polyester resin or the like and a reactive monomer. SOLUTION: An anchoring agent is produced by using 50-100 pts.wt. diester oligomer represented by the formula, 0-30 pts.wt. resin selected from an unsaturated polyester resin, an epoxy acrylate resin, a polyester acrylate resin and a urethane acrylate resin and 0-50 pts.wt. reactive monomer. In the formula, R1 denotes H or 1-3C alkyl; and m+n=2.4 to 6.0. The diester oligomer is a diester of a dihydric alcohol component and an unsaturated carboxylic acid which constitute an ethylene oxide adduct of bisphenol A, and is used the diester oligomer of the formula wherein m and n are each different, which is produced by esterification of a mixture of an ethylene oxide adduct of bisphenol A.