| 摘要 |
PROBLEM TO BE SOLVED: To provide an adhesive for adhering newly placed concrete to existing concrete, capable of curing at such a low temperature as 5 deg.C, having an appropriate useful service time, having a low viscosity, therefore excellent in workability and adhesiveness, and further scarcely causing safety problems such as air pollution, because of not using any solvent. SOLUTION: This adhesive for adhering newly placed concrete to existirng concrete is obtained by using an epoxy resin composition comprising a specific heterocyclic ring-containing compound, a polyepoxy compound, and an amino compound having two or more active hydrogen atoms derived from amino groups in a molecule.
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