Hot-Mix Asphalt Overlay Design Concepts for Rubblized Portland Cement Concrete Pavements:

摘要: The Illinois Department of Transportation's (IDOT's) first interstate rubblization project was constructed in 1990 on I-57 near Pesotum as part a rehabilitation study. Hot-mix asphalt overlays (HMA OL) were over rubblized jointed reinforced concrete pavement (JRCP) with granular subbase. Excellent performance achieved the project, which had accommodated 7.5 million equivalent single-axle loads through 1998. Periodically collected falling weight deflectometer (FWD) data indicate sections have retained their structural capacity and integrity. HMA fatigue distress has not developed. success prompted IDOT to consider portland cement (PCCP) OL viable cost-effective option. Rubblization is particularly appropriate for eliminating reflective cracking use when PCCP patching quantities are high or deterioration an advanced stage. considerations control thickn...