Quality evaluation method based on permeability test of concrete structures

摘要

The present invention provides a quality evaluation method based on a water permeability test capable of working in a field where a concrete structure exists. A close contact body having an inner chamber and an outer chamber is brought into contact with a concrete surface, and the inside of the outer chamber is decompressed and brought into close contact. The water permeability test is performed by supplying the water W in the water reservoir 21 into the inner chamber 11 while pressurizing the water W in the water reservoir 21 with the pressurizing means 22. After a predetermined time, the water permeability is calculated, the water permeability index is calculated, and the quality of the concrete structure is evaluated. [Selection] Figure 1