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王铭

（陕西铁路工程职业技术学院，陕西 渭南 714000）

摘  要：通过极限氧指数测试评价了3种复合阻燃剂改性沥青的阻燃性能，借助室内车辙试验、低温弯曲试验、浸水马歇尔试验、劈裂疲劳试验研究了3种复合阻燃剂对OGFC沥青混合料路用性能及疲劳性能的影响，结果表明：复配阻燃体系阻燃效果明显优于单一无机系阻燃剂，且HL+APP复配的无机膨胀型阻燃体系效果最佳。在保证阻燃性能的同时，3种复配阻燃体系下混合料的路用耐久性能无负面影响，高温性能、水稳定性和疲劳性能有一定提升，低温性能稍有下降。

关键词：阻燃剂；OGFC；阻燃性能；路用性能；疲劳性能

中图分类号：U414   

文献标志码：A   

文章编号：1005-8249（2024）02-0027-04

DOI:10.19860/j.cnki.issn1005-8249.2024.02.006

WANG Ming

(Shaanxi Railway Institute,Weinan 714000, China)

Abstract:The flame retardancy of modified asphalt with three kinds of composite flame retardants was evaluated by limiting oxygen index test. The influence of three kinds of composite flame retardants on the road performance and fatigue performance of OGFC asphalt mixture was studied by means of indoor rutting test, low temperature bending test, and the inorganic intumescent flame retardant system composed of HL + app has the best effect. The high-temperature performance, water stability and fatigue performance of the three composite flame retardant systems were improved to some extent, and the low-temperature performance was slightly decreased.

Keywords: flame retardant; OGFC；flame retardant performance; road performance；fatigue performance

 

 

作者简介：王铭 (1990—)，男，硕士，讲师，主要研究方向：智能建造工程及应用。

收稿日期：2023-09-08