沥青路面夹层动态粘弹性及抗剪性能

摘要

In order to improve the resisting reflective cracking of semi-rigid asphalt pavement and asphalt concrete overlays,the flexible interlayer is intercalated between road base and surface.The viscoelastic property of some flexible interlayer samples such as neat asphalt interlayer and different geotechnical fabrics interlayer is analyzed with dynamic sweep using dynamic shear rheometer(DSR),and then the slippage resistance characteristics of the flexible interlayer is studied.The results indicate that the geotechnical fabrics interlayer which can meet the requirements of pavement resisting slippage has excellent performance.%为提高半刚性沥青路面与沥青加铺层的防反射裂缝的能力,在基面层之间设置了柔性夹层.采用动态剪切流变仪(DSR)对纯沥青夹层、不同土工织物夹层进行了动态扫描,并分析了其动粘弹性,然后对夹层的抗剪性能进行试验分析.研究结果表明,土工织物夹层满足路面抗滑移的要求,具有良好的路用性能.