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Analysis of Tensile Strain Variation in Asphalt Layer of Long-life Pavements
Pages: 22-25
Year: Issue:  1
Journal: Journal of Zhengzhou University(Engineering Science)

Abstract: 基于陕蒙高速长寿命路面结构组合形式,借助弹性层状体系理论分析沥青层内水平拉应变的变化规律,提出消除或缓和沥青层内水平拉应变曲线驼峰现象的措施.结果表明:当沥青联结层与沥青基层的模量比≥1.5时,沥青层内应变曲线驼峰出现,并且随模量比的增大,驼峰现象加剧.高模量层的存在是沥青层内驼峰现象出现的根本原因.只有当沥青联结层与沥青基层的模量比较接近时,沥青层内应变曲线的驼峰现象才有明显改善.分析结果为长寿...
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