摘要
如果隧道工程中混凝土的抗渗性能较差,可能会导致液体、气体进入混凝土结构,致使结构使用寿命快速缩减,对工程安全产生极大的负面影响。为提升混凝土结构的抗渗性能,强化其在隧道工程中的应用效果,探究了掺入聚丙烯纤维、玻璃纤维、钢纤维后混凝土抗渗性能的改良效果,并分析了抗渗性能提升机制。结合隧道工程二衬结构应用案例,评价聚丙烯纤维混凝土的抗渗性能,以期推动纤维混凝土在隧道工程中得到有效应用。
Poor impermeability of concrete in tunnel engineering may lead to liquid and gas entering the con⁃crete structure,which rapidly reduces the service life of the structure and has a great negative impact on en⁃gineering safety.In order to improve the impermeability of concrete structure and strengthen its application effect in tunnel engineering,the improvement effect of concrete's impermeability after adding polypropylene fiber,glass fiber and steel fiber was explored,and the mechanism of improving the impermeability was ana⁃lyzed.The impermeability of polypropylene fiber reinforced concrete is evaluated according to the applica⁃tion case of tunnel lining structure,in order to promote the effective application of fiber reinforced concrete in tunnel engineering.
作者
邹旭君
ZOU Xu-jun(Gansu Yuanlong Road and Bridge Mechanized Highway Engineering Co.,Ltd.,Lanzhou 730000,Gansu,China)
出处
《合成纤维》
2024年第1期74-77,共4页
Synthetic Fiber in China
关键词
纤维混凝土
抗渗性能
室内试验
隧道
应用
fiber reinforced concrete
impermeability performance
indoor testing
tunnel
application
