【摘要】 基于直剪疲劳试验，研究了不同掺量下RAP对微表处混合料抗疲劳特性的影响。结果表明：利用三参数Weibull分布评价再生料微表处混合料的抗疲劳特性，表现为k值随RAP掺量的增加不断增大，说明RAP掺量的增加使再生料微表处混合料的抗疲劳特性提高；在失效概率相同的条件下，n值随RAP掺量的增加而增大，说明随着RAP掺量的增加，再生料微表处混合料疲劳寿命对应力变化更敏感；RAP旧料的掺入可显著提高微表处混合料的抗疲劳特性。该研究成果为合理利用RAP旧料提供了一个新的技术方法。更多还原

【Abstract】 Based on the direct shear fatigue test, the influence of reclaimed asphalt pavement(RAP) with different dosage on the fatigue resistance performance of micro-surfacing are studied. The results show that the k value of the fatigue resistance characteristics of RAP of micro-surfacing evaluated by Weibull distribution increases with the increase of RAP content, which indicating that the increase of RAP content improves the fatigue resistance of the micro-surfacing; Under the same failure probability, n value increases with the increase of RAP content, which indicating the increase of RAP content makes the fatigue life ofthe recycled material of the micro surfacing more sensitive to stress changes; The addition of RAP can significantly improve the fatigue resistance of the micro surfacing. The research results provide a new technological method for rational utilization of RAP.更多还原