| 摘要 |
PROBLEM TO BE SOLVED: To provide a repair method of a concrete structure capable of visually observing the progress of degradation such as a crack present on a surface of the concrete structure even after attaching a fiber sheet to the concrete structure, improving workability during construction, more stably holding the fiber sheet on the surface of the concrete structure and performing highly reliable repair in a long term. SOLUTION: In a repair method of a concrete structure, a fiber sheet is attached to a surface of the concrete structure with a 2-liquid main agent type acrylic resin adhesive comprising a primer and a fiber adhesive. The viscosity of the primer at 20°C and 20 rpm measured according to JIS K 7117-1 is 200-2,000 mPa s, the viscosity of the fiber adhesive at 20°C and 20 rpm measured immediately after mixing 2 liquids thereof is 2,500-5,000 mPa s, and the viscosity of the mixed liquid at 20°C and 20 rpm measured after leaving it still for five minutes is 15,000-30,000 mPa s. COPYRIGHT: (C)2012,JPO&INPIT |
