运营期高速公路排水沥青路面力学及渗水性能测试  

Mechanical and water permeability testing of drainage asphalt pavement on highways during operation period

作　　者：陶飞 李强 TAO Fei;LI Qiang(Sichuan Suiguang Suixi Expressway Co.,Ltd.,Chengdu 610000,China)

机构地区：[1]四川遂广遂西高速公路有限责任公司,四川成都610000

出　　处：《四川建材》2024年第10期187-189,192,共4页Sichuan Building Materials

摘　　要：遂广遂西高速排水沥青路面服役已达7年。为开展透水沥青路面的可靠性和耐久性研究,以铺设的6 km排水沥青路面为研究对象,对主车道及应急车道分别进行了现场调查及试验。试验主要包括力学指标及渗水指标测试两部分。针对摩擦系数、路面构造深度、飞散质量损失率、劈裂强度、渗水系数和孔隙率进行了现场及室内测试。试验结果表明:透水沥青路面服役7年后,道路不同行车部位的力学性能具有较大差异,但仍均处于规范允许范围内,且路面堵塞严重,渗水指标不合格率较高。建议运维期加强对沥青路面的清洗处理,保证透水沥青路面的孔隙率和渗水能力。试验结果对排水沥青路面运营期中的状态及维护措施具有一定的参考意义。The service time of the Suiguang Suixi Expressway drainage asphalt pavement has reached 7 years.To conduct research on the reliability and durability of permeable asphalt pavement,a 6-kilometer drainage asphalt pavement was used as the research object,and on-site investigations and experiments were conducted on the main lane and emergency lane respectively.The experiment mainly includes two parts:mechanical index and water permeability index testing.On site and indoor tests were conducted on friction coefficient,pavement structure depth,scattering mass loss rate,splitting strength,water permeability coefficient,and porosity.The experimental results show that after 7 years of service,the mechanical properties of different driving parts of the permeable asphalt pavement have significant differences,but they are still within the allowable range of the specifications.The road surface is severely blocked,and the failure rate of water seepage indicators is relatively high.It is recommended to strengthen the cleaning treatment of asphalt pavement during the operation and maintenance period to ensure the porosity and water permeability of permeable asphalt pavement.The experimental results have certain reference significance for the state and maintenance measures of drainage asphalt pavement during the operation period.

关 键 词：排水沥青路面 遂广高速 耐久性 测试 

分 类 号：U416.2[交通运输工程—道路与铁道工程]