阻燃改性沥青物理性能和阻燃抑烟性能研究  

Study on physical properties and flame-retarded and smoke-suppression properties of flame-retarded modified asphalt

作　　者：张梦茹 王丽丽 周建光 陈小兵[3] 王俊天 文威 梁忠善 吴林 ZHANG Mengru;WANG Lili;ZHOU Jianguang;CHEN Xiaobing;WANG Juntian;WEN Wei;LIANG Zhongshan;WU Lin(Suzhou Transport Investment,Construction and Management Co.,Ltd.,Jiangsu Suzhou 215007 China;Suzhou Sanchuang Pavement Engineering Co.,Ltd.,Jiangsu Suzhou 215124 China;School of Transportation,Southeast University,Jiangsu Nanjing 210096 China;Hangzhou Transportation Development Support Center,Zhejiang Hangzhou 310030 China)

机构地区：[1]苏州交投建设管理有限公司,江苏苏州215007 [2]苏州三创路面工程有限公司,江苏苏州215124 [3]东南大学交通学院,江苏南京210096 [4]杭州市交通运输发展保障中心,浙江杭州310030

出　　处：《山东交通科技》2023年第1期14-17,共4页

基　　金：苏州市科技发展计划(民生科技)项目,项目编号:8521008637。

摘　　要：为了研究阻燃剂对SBS改性沥青物理性能和阻燃抑烟性能的影响,制备了不同阻燃剂用量(10%~50%)的阻燃改性沥青,通过三大物理性能指标试验、黏韧性试验、氧指数试验和烟密度试验对比分析阻燃改性沥青性能变化规律。结果表明:阻燃剂可以增强SBS改性沥青的高温性能,降低沥青的低温性能和温度敏感性。阻燃剂能够提高SBS改性沥青的黏韧性,但阻燃剂用量过大会造成沥青抗断裂能力的降低。阻燃剂用量大于沥青质量的40%时,阻燃沥青具有良好的阻燃性能和抑烟性能。To study the effect of flame retardant on the physical properties and flame-retarded and smoke-suppression properties of SBS modified asphalt,flame-retardant modified asphalt with different flame retardant dosages(10%~50%)was prepared to analysis the performance change law of flame-retarded modified asphalt by physical property tests,toughness and tenacity tests,oxygen index test and smoke density test.The results show that the flame retardant can enhance the high temperature performance of SBS modified asphalt,and reduce its low temperature performance and temperature sensitivity.Flame retardant can improve the toughness and tenacity of SBS modified asphalt,but excessive dosage of flame retardant may reduce the fracture resistance of asphalt.The dosage of flame retardants should be more than 40%,which make the flame-retarded asphalt have good flame-retardant and smoke-suppression performances.

关 键 词：SBS改性沥青 阻燃剂 物理性能 阻燃抑烟性能 

分 类 号：U414[交通运输工程—道路与铁道工程]