ALCパネルに施工する防水層機械固定工法におけるアンカー固定方法の提案

概要

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As waterproofing membrane is anchored to the substrate only partially, it is important to confine the wind resistance of the mechanically anchored waterproofing system. Especially in case of ALC panels as substrate of which strength is lower than concrete, it is necessary to pay attention to this issue. In this research, we studied pullout strength, shear strength as well as fiacture mode of anchors installed to the ALC panel substrate. Investigated parameters were, effect of epoxy resin injection, size of in advance predrilled hole diameter and anchors length. As a result of specimens with epoxy resin injected, pullout strength was enhanced but after reaching maximum strength it declined extremely, moreover ALC substrate fracture became evident. To improve this weakness, we proposed the mechanically anchored system with elastic adhesive injection. In this case, as the pullout strength decrease was not dramatic, moreover fracture of ALC substrate did not occur, and we obtained high adhesiveness anchored system.
2004-11-30