| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for adhesively bonding a waterproof sheet comprising a polyolefin resin or an olefin thermoplastic elastomer to a concrete structure, which requires no pretreatment, exhibits excellent adhesive bonding force and good applicability and prevents the peeling of the waterproof sheet after applying it to the concrete structure. SOLUTION: In a method for adhesively bonding a waterproof sheet comprising a polyolefin resin or an olefin thermoplastic elastomer to a concrete structure, the method comprises coating, as a primer, a solution having 3-15% solids content which is prepared by blending 100 pts.wt. epoxy resin having an epoxy equivalent of 200±50 g/eq into 100 pts.wt. chlorinated polypropylene having a chlorine content of 15-40 wt.% or a solution having 3-15% solids content which is composed mainly of a brominated product of an isobutylene and p- methyl styrene copolymer on the surface of the waterproof sheet and on the other hand, applying an amine- or amide-cured epoxy adhesive to the surface of the concrete structure to thereby adhesively bond the primer coated surface of the waterproof sheet to the adhesive surface of the concrete structure.
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