Abstract
Water proofness of reinforced concrete walls is deteriorated by formation of cracks. In order to recover water proofness, some injection methods are used to seal cracks. However, reinforced concrete walls which have water leakage are usually exposed to driving rain, water pressure and movement, and effectiveness of injection methods is difficult to be evaluated.In this paper, a water permeability test and a deformabikity test for estimating injection methods are proposed. The former is to confirm permeability and injectability for small cracks. An injection method which was said to recover water proofness and to have deformability was tested.