건설재료시공학연구실

Building material & construction lab.

Abstract

The accident of water leakage in sealed joint between building components has been increasing because of adhesion failure. In this study, with a goal to improve water-tightness and durability of sealed joint, the performance of sealed joint was evaluated by proposing different cross-section of sealant in order to decrease stress concentration on adhesion area of sealed joint. Five types of sealed joint cross sections with rectangle or circular shape, in combination with five adhesion types of sealed joint with different adhesion area ratio or its pattern were tested. As a result, the specimens of concave cross-section had good performance to decrease tensile stress on adhesion area of sealed joint.