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王銘

（陜西鐵路工程職業(yè)技術學院，陜西 渭南 714000）

摘  要：通過極限氧指數(shù)測試評價了3種復合阻燃劑改性瀝青的阻燃性能，借助室內(nèi)車轍試驗、低溫彎曲試驗、浸水馬歇爾試驗、劈裂疲勞試驗研究了3種復合阻燃劑對OGFC瀝青混合料路用性能及疲勞性能的影響，結果表明：復配阻燃體系阻燃效果明顯優(yōu)于單一無機系阻燃劑，且HL+APP復配的無機膨脹型阻燃體系效果最佳。在保證阻燃性能的同時，3種復配阻燃體系下混合料的路用耐久性能無負面影響，高溫性能、水穩(wěn)定性和疲勞性能有一定提升，低溫性能稍有下降。

關鍵詞：阻燃劑；OGFC；阻燃性能；路用性能；疲勞性能

中圖分類號：U414   

文獻標志碼：A   

文章編號：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

 

 

作者簡介：王銘 (1990—)，男，碩士，講師，主要研究方向：智能建造工程及應用。

收稿日期：2023-09-08