GFRP-硬質ウレタンフォームサンドイッチ版の含水状態および曲げ性能に関する実験的研究

抄録

There is growing needs to replace damaged and aging wooden floor slabs of pedestrian deck, promenade and so on with lighter and more durable ones for a long-term use and an easy erection. Then focused on in this study is a sandwich composite panel, which consists of GFRP plates as surface material and rigid polyurethane foam as core material integrally and is molded by Vacuume Infusion techinique. Three-point and four-point bending tests of the sandwich panels on dry and wet conditions were conducted. The experimental results revealed that the wet conditions hardly influence on the bending behaviors of the GFRP sandwich panels and the panel can be applied to a span up to 1.2m.