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非均匀性是诱发沥青混凝土路面早期损坏的一个重要因素,降低了沥青混凝土路面的服务水平及寿命。离析混合料的级配、沥青含量以及体积特性都发生了变异,沥青混凝土路面性能变异特征值得研究。通过建立现场非均匀性沥青混凝土路面特性和体积参数的离析标准,在室内模拟不同离析程度沥青混合料,并进行汉堡浸水车辙试验,通过定量分析研究离析混合料的高温稳定性以及水敏感性变异水平,为建立定量的非均匀性沥青混凝土路面性能及寿命评价模型提供参数。
Inhomogeneity is an important factor in inducing early damage to asphalt pavement and reduces the service level and life span of asphalt pavement. The gradation, asphalt content and volumetric characteristics of the segregated mixture have all changed. The variation of asphalt pavement performance is worth studying. Through the establishment of on-site heterogeneity asphalt concrete pavement characteristics and volume parameters of the separation criteria, the simulation of different degrees of indoor asphalt mixture, and the Hamburg flooding rut test, through the quantitative analysis of the segregation mixture of high temperature stability and water sensitivity variation Level, in order to establish quantitative non-uniform asphalt concrete pavement performance and life evaluation model to provide parameters.