桥梁阻燃拉索护套复合材料性能影响研究  

Research on Effects of Flame-retardant Cable Sheath Composites on Bridges

作　　者：叶子明 李文献 黄日金 王瑜 黄颖 Ye Ziming;Li Wenxian;Huang Rijin;Wang Yu;Huang Ying

机构地区：[1]柳州工学院土木建筑工程学院,广西柳州545616 [2]柳州市预应力结构工程技术研究中心,广西柳州545616 [3]柳州欧维姆机械股份有限公司,广西柳州545005

出　　处：《重庆建筑》2022年第10期66-68,共3页Chongqing Architecture

基　　金：柳州工学院科研基金“桥梁阻燃拉索研究”(2019LSKY04);广西高校中青年教师科研基础能力提升项目“红黏土裂隙演化的温度效应研究”(2021KY1708)。

摘　　要：目前桥梁拉索体系锚固技术已经很成熟,防水防腐技术也不断提高,但在阻燃防火技术方面是滞后的。该文以桥梁阻燃拉索护套材料为研究对象,对桥梁阻燃拉索护套复合材料性能进行研究。结果表明,当复合材料的配比为80%HDPE和20%阻燃母粒时,拉伸强度达到了18.7MPa,冲击强度为18.2 k J/m~2,弯曲强度为19.2MPa,氧指数为26%,桥梁阻燃拉索护套复合材料的技术性能和阻燃效果都达到了最好。At present,the anchoring technology of the bridge cable system is very mature,and the waterproof and anti-corrosion technology has been continuously improved,but the flame-retardant and fire-proof technology is lagging behind.In this paper,the bridge flame-retardant cable sheathing material is taken as the research object,and the properties of the bridge flame-retardant cable sheathing composite material are studied.The results showed that when the ratio of the composite material is 80% HDPE and 20% flame retardant master batch,the tensile strength reaches 18.7MPa,the impact strength is 18.2 k J/m2,the bending strength is 19.2MPa,and the oxygen index is 26%.The technical performance and flame retardant effects of the bridge flame-retardant cable sheath composite material have reached the best.

关 键 词：拉索 HDPE 阻燃母粒 材料性能 复合材料 

分 类 号：TU411[建筑科学—岩土工程]