Abstract
Asphalt concrete layers deteriorate by traffic, environmental conditions, and material-related properties. While there have been studies on asphalt crack performance, research on fatigue life is still limited since they are mostly based on laboratory experiments. The main objective of this study is to assess the life span and crack performance of an innovative base layer material containing 40% RAP. It is accomplished by analysing the data collected from a constructed test pavement using a full-scale accelerated traffic load simulator MLS10. Significant instrumentation was embedded in the surface and base layers. Experimental campaigns were conducted with around 1 100 000 cumulative load passes applied to the base course under different climatic conditions. Based on the findings, the fatigue life and the crack position are determined for the base layer. Base course material with a recycled binder ratio of 40% survived 800 000 load cycles in severe thermal conditions before crack initiation.
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