Research On The Performance And Applied Of Flame-retardant Modified Asphalt Mixture

With the rapid development of highway construction in our country, specially in the high-grade highway, the quantity and construction scale of highway tunnel became larger and larger. However, Concrete pavement as a result of the existence of tunnels poor anti-sliding performance, noise and other shortcomings, the bituminous pavement is becoming the tunnel road surface paving the mainstream, also even its tendency. But the asphalt is the ignitable material, there existented fire hidden danger in the using of asphalt mixture was applied in tunnel surface construction. Much more times accidents because of this reason visted in many countys,which reasulted the research of flame-resistant asphalt became meaningful!In this paper, the use of Cone Calorimeter test method for flame-retardant asphalt cement and asphalt mixtures for combustion analysis of asphalt mortar. By analyzing the combustion process in the time to ignition, heat release rate, mass loss rate, the volume of smoke and other parameters, to evaluate the flame retardant asphalt mixture compared with the non-flame retardant asphalt mixture performance. Flame-retardant mixture of asphalt mix for the design and construction technology research,A rut, flooding Marshall, anti-slide and put the value of dispersion, such as Fort Kent Road, with the technical performance tests, Evaluation of flame-retardant mixture of asphalt on the road performance of applications.Through research and tests showed that asphalt pavement in the tunnel to join with Mixture of flame retardant, its ignition time, heat release rate, mass loss rate, the volume of smoke and other combustion parameters are significantly improved by adding flame retardant asphalt pavement of the road not only their own performance was not affected, but also to improve its fire-retardant effect of asphalt pavement of the tunnel of fire prevention play a good role. Moreover, this paper to study the asphalt mixture to provide the flame-retardant properties of a new type of test methods.