公路隧道反光沥青路面  

Glistening asphalt pavement structure of highway tunnel

作　　者：史小丽[1] 王选仓[1] 刘昆[1] 

机构地区：[1]长安大学公路学院,陕西西安710064

出　　处：《长安大学学报（自然科学版）》2009年第3期19-22,共4页Journal of Chang’an University(Natural Science Edition)

基　　金：河北省交通科技项目(Y-060249)

摘　　要：为了提高隧道沥青路面亮度,利用玻璃珠的回复反光特性,在开级配沥青磨耗层（OGFC）中掺加高强度玻璃珠 分析了不同掺加比例及不同粒径玻璃珠的5种组合方案对OGFC混合料路用性能的影响,并给出了最佳的掺加方案。结果表明：在OGFC中掺入玻璃珠会使马歇尔稳定度略有下降,沥青混合料的抗车辙能力、抗滑、降噪和反光性能与玻璃珠在沥青混合料表面的覆盖率有关 在OGFC-13混合料面层中掺加10%~15%、粒径为2~3 mm的玻璃珠可以满足路用性能各项技术指标的要求。In order to increase the illumination of tunnel pavement, through appending glass bead into OGFC mixes owing to the retro-reflective performance of glass bead, this paper analyzed the influence on pavement performance when different rates and diameter glass bead appended into OGFC mixes, and put forward the optimal appending proportion and diameter of glass bead into OGFC. The test results show that Marshall stability is slightly lower than those without glass bead, and the performances of resistance of rutting, anti-skidding, noise-reduction and retro- reflective performance relate to the coverage rate of glass bead; the specifications of pavement performance could be meet by 10%-15% quantity and 2-3 mm diameter of glass bead mixed to OGFC-13. 4 tabs, 9 figs, 11 refs.

关 键 词：道路工程 开级配沥青磨耗层 玻璃珠 反光强度 隧道路面 

分 类 号：U454.1[建筑科学—桥梁与隧道工程]