Experiment and Study on Optimization of Retarding Characteristics of Flame-Retardant Asphalt Binder

In order to investigate the influence of flame retardant species and dose on flame retardant effect of asphalt binder,by using experimental scheme of mathematical optimization and regarding limiting oxygen index as assessment index,the study has experimented 9 kinds of flame retardant asphalt binder.The result shows that,under the α=0.05 significance level,the species and dose of flame retardant and the type of asphalt binder have significant effects on limiting oxygen index,in which flame retardant dose is the most important influencing factor.