Abstract
During road maintenance, a large volume of milling materials is produced, including asphalt pavement milling mixtures (AMM) and cement-stabilized base-course milling mixtures (CMM). AMM has been widely used in the hot recycling and cold recycling for asphalt pavements. CMM is mainly used in the cold recycling with asphalt and cement for the base-course, while it is not always appropriate for all grades of highways because of high cost of asphalt materials. The cold recycling using CMM with pure cement, namely the cement-stabilized cold recycling mixtures (CSCRM), is alternative considering a high utilization of CMM and relatively low construction costs. However, there are few studies on this recycling technique, especially on fatigue behaviour and the effects of recycled aggregate (RA) composition. Therefore, the effects of RA content, RA composition, and stress level on the fatigue life of the CSCRM using CMM with pure cement were revealed via 40 sets of the splitting fatigue tests in this study. Finally, a fatigue equation considering RA content, RA composition, and stress level was established to predict the fatigue life of the CSCRM under different cement contents.
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