The linear amplitude sweep (LAS) test is considered a useful tool for evaluating fatigue of asphalt binders. It has been confirmed that a good correlation exists between fatigue performance of binders and mixtures in a few studies. While the change in binder fatigue with load or strain level is well studied and modeled, the effects of oxidative aging remain difficult to explain or to model in a simple format. In this paper, the combined effects of strain and aging are investigated and a method for estimating binder fatigue behavior after different aging durations from limited measurements is introduced. LAS tests were conducted on eight binders at three different aging periods in the PAV. It is found that binder fatigue damage parameters C₁ and C₂ have a good linear relationship with aging level when using the dissipated pseudo-strain energy approach. The results also show that LAS parameters A and B at different aging duration maintain a linear relationship with the binder complex modulus (G*) measured at corresponding aging conditions. Therefore, a new fatigue life (Nf) model accounting for strain level and aging effect is proposed using a power function of the binder G*. To verify the model, its parameters are fitted using test data at first two aging conditions and used to extrapolate and predict the fatigue life at extended aging conditions. This study findings offer a simpler and reliable method to predicted values of fatigue life at new aging condition using both 35% damage level and maximum stress failure criteria that are recommended in AASHTO TP101-12 and AASHTO TP101-14, respectively. The new model will allow use of the LAS procedure to a wider range of aging and strain level conditions for which binders could be subjected to in the pavement.

线性振幅扫描（LAS）测试被认为是评估沥青粘合剂疲劳的有用工具。已经证实，在一些研究中，粘合剂和混合物的疲劳性能之间存在良好的相关性。尽管已经很好地研究和建模了粘合剂疲劳随载荷或应变水平的变化，但是氧化老化的影​​响仍然难以解释或无法以简单的形式建模。本文研究了应变和时效的综合影响，并介绍了一种通过有限的测量来估算不同时效后的粘结剂疲劳行为的方法。在PAV中三个不同的老化时期对八种粘合剂进行了LAS测试。发现粘合剂疲劳损伤参数C ₁和C ₂当使用耗散伪应变能方法时，与老化水平具有良好的线性关系。结果还表明，在不同的老化时间下，LAS参数A和B与在相应的老化条件下测得的粘合剂复数模量（G *）保持线性关系。因此，利用粘合剂G *的幂函数，提出了一种新的考虑了应变水平和老化效应的疲劳寿命（Nf）模型。为了验证模型，使用前两个老化条件下的测试数据拟合其参数，并用于推断和预测延长的老化条件下的疲劳寿命。这项研究发现使用35％的损伤水平和AASHTO TP101-12和AASHTO TP101-14中推荐的最大应力破坏标准，提供了一种新的老化条件下的疲劳寿命预测值的简便，可靠的方法，分别。新的模型将允许在更宽范围的老化和应变水平条件下使用LAS程序，使粘合剂可以在路面上使用。