玻璃纤维增强杨木混凝土模板用胶合板研究.PDF

2支到(F哥去军 玻璃纤维增强杨木混凝土模板用胶合板研究 梅长彤，周定国 (南京林业大学木材工业学院，南京 210037) 摘 要:以玻璃纤维为增强材料，盼酶树脂为胶粘剂，研究了浸胶玻璃纤维布的配置层数和配置模式对杨木混凝 土模板用胶合板静曲强度和弹性模量的影响。结果表明:浸胶玻璃纤维布对杨木胶合板的顺纹和横纹静曲强度及 弹性模量均具有明显的增强效果，且随玻璃纤维布层数增加，产品的静曲强度和弹性模量均呈现上升趋势。增加 玻璃纤维布数量对产品静曲强度的增强效果优于弹性模量;玻璃纤维层数相同而配置模式不同的杨木胶合板静曲 强度和弹性模量差异较大，将玻璃纤维配布靠近于表层配置可以发挥更好的增强效果。 关键词:玻璃纤维;杨木;混凝土模板;胶合板 Study on Glass Fiber Reinforced Poplar Plywood Used for Concrete Form//MEI Chang-tong , ZHOU Ding-guo Abstract: Several type of poplar plywood reinforeced with PF impregnated glass fiber was made in laboratory. Effects of lay- er number and arrangement of glass fiber in the mat on MOR and MOE of the poplar plywood were discussed in this paper. Result shows that , PF impregnated glass fiber have a great reinforcement effect on MOR and MOE of the product whether in the parallel to grain direction or in the perpendicular direction. As layer number of glass fiber increases in the mat , MOR and MOE of poplar plywood trend to increase. But it was more effective on MOR than MOE by increasing layer numer of glass fiber. Different arrangement of glass fiber in the mat lay-up sequence was also of influence on the strength properties of the product. Test result showed that there was more reinforcement effect by arranging the PF impregnated glass fibers to close to the surface layer of poplar plywood. Key words: Glass fiber; Poplar wood; Concrete form; Plywood Author s address: College of Wood Industry , Nanjing Forestry University , 210037 Nanjing , China 松生产胶合板模板。目前水泥模板用胶合板产品已 建筑模板是混凝土结构工程施工的重要工具，在 现浇混凝土结构工程中，模板工程一般占混凝土结构