According to asphalt combustion theory and flame-retardant mechanism, the paper analyzes current feasible flame-retardant methods of tunnel asphalt, carries out a series of comparative tests on the effect of modified asphalt with various flame-retarded agents, analyzes the impact of retarded-agent upon asphalt performance and its flame-retarded effect, and obtains scientific conclusions, which has significant meaning for improving safe driving in tunnel.%根据沥青燃烧理论及阻燃机理,介绍了目前隧道沥青阻燃的可行方式,并且对改性沥青添加不同阻燃剂的效果进行一系列的对比试验,分析了掺加阻燃剂后对沥青性能的影响及其阻燃效果,得出了科学的结论,有助于提高隧道内行车安全。
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