Abstract
The sealants for construction used for the exterior of buildings deteriorate with progress of time, and cracks generate on the surface of them. Although crack is an important failure which grasps the state of degradation, sensuous evaluation by visual observation has mainly been performed until now. In this study, the new quantification method which is based on fracture mechanics is proposed for estimating damage of sealants. By this quantification, we can compare the difference in the cracks of sealants exposed for various periods and in various exposure sites.
