再生沥青混合料试验研究
Experimental Study on Recycled Asphalt Mixture
王光明1
作者信息
- 1. 滁州市公路管理服务中心,安徽 滁州 239000
- 折叠
摘要
为提高国省干线公路沥青路面的养护效率并促进环境可持续性发展,文中主要针对就地热再生技术在沥青路面维修中的应用进行研究.结果表明,经过1 000 次循环加载后,混合料的平均车辙深度仅为12 mm.水稳定试验中混合料的破坏强度平均达到了2.5 MPa.在低温弯曲试验中,混合料展现出良好的韧性和抗裂性能,其中,断裂时的平均弯曲应力为3.4 MPa,平均弯曲应变为490 με,其在低温条件下具有较强的耐裂性.
Abstract
In order to improve the maintenance efficiency of asphalt pavement of national and provincial trunk highways and promote environ-mental sustainability,this paper mainly studies the application of geothermal regeneration technology in asphalt pavement maintenance.The re-sults show that the average rut depth of the mixture is only 12 mm after 1 000 cycles of loading.In the water stability test,the average failure strength of the mixture reached 2.5 MPa.In the low temperature bending test,the mixture shows good toughness and crack resistance.The av-erage bending stress at fracture is 3.4 MPa,and the average bending strain is 490 με.It has strong crack resistance at low temperature.
关键词
国省干线公路/沥青路面/养护技术/就地热再生Key words
National and provincial trunk roads/Asphalt pavement/Maintenance technology/Geothermal regeneration引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据