摘要
设计模拟燃烧试验方法,考察分析水泥混凝土、AC、SMA和OGFC几种路面材料的防火性能。结果表明:设计制备的OGFC路面逃逸汽油量最大,较水泥混凝土路面,燃烧时间缩短一半,逃逸汽油量高达89%,路表温度控制在200℃以下,空气温度不足50℃,明显优于其他沥青路面材料甚至水泥混凝土路面材料,具有优良的防火性能。高黏度改性沥青配制的OGFC面层路用性能优良,可以有效防止汽油燃烧,适于作为大型公路隧道沥青面层材料。
The paper is to present a simulation of combustion test with its analysis of the fire-retardant properties of the cement concrete, AC, SMA and OGFC. The results of our simulation show that the OGFC prepared by the method proposed in this paper is advantageous over other asphalt pavement materials and even superior to the concrete pavement material in dealing with gasoline, combustion time and high temperatures for its excellent fire-retarding performance. To be exact, it can resist the high temperature of the road surface within 200℃ and escape gasoline over 89%. In addition, the porous asphalt pavement in the highway tunnels is expected to increase its dynamic stability by 8 000 times/ram and its cantabro loss with only 3%, which is considered to be perfect in the road performance. Thus, the author believes that the OGFC prepared by the high viscosity modified asphalt has a good road and fire-retardant performance, which can prevent the gasoline burning effectively. And it is just for this reason and many others that makes it appropriate to be paved in the highway tunnels. The research results of this paper helps to solve the highway tunnel fires and can be taken as a guide and reference to the improvement of our tunneling as well as the other traffic and road construction projects.
出处
《安全与环境学报》
CAS
CSCD
2008年第1期126-129,共4页
Journal of Safety and Environment
基金
国家高技术发展计划(863计划)(2006AA11Z117)
关键词
道路与铁道工程
沥青路面
OGFC
阻燃
隧道
highway ＆ railway engineering
asphalt pavement
OGFC
fire-retardant
tunnel
作者简介
丁庆军．教授，博士，从事高性能混凝土、高性能轻集料混凝土、道路桥梁材料研究，wwwsf5227@163．com。
