Mix Design for Full-Depth Reclaimed Asphalt Pavement with Cement as Stabilizer

摘要

A rational rehabilitation design should base on the understanding and knowledge of the existing pavement distress/condition. The purpose of this research was to investigate the effects of reclaimed asphalt pavement (RAP) content and cement content on the strength of Full-Depth Reclamation (FDR) base. FDR for asphalt pavement with cement as the stabilizer was used as the base course. The full-factorial experimental design included: (1) five RAP contents, and (2) five cement contents. To ensure the reproducibility, there were three replicates for each specimen. The 7 days unconfined compressive strength (UCS) was used as the control parameters. The five RAP contents consisted of 0%, 25%, 50%, 75% and 100%. The five cement blending content included 0.5%, 1.0%, 1.5%, 2.0% and 2.5%. The test results indicate that the optimum design was 50% RAP and 2% cement.