ABSTRACT
ABSTRACT: Pavement life cycle stages include materials, construction, maintenance and rehabilitation, use, and End-of-Life (EOL). The least studied stage in pavement Life Cycle Assessment (LCA) studies has been the EOL stage. Currently the options for EOL are recycling (in-place and in-plant) and landfilling. Recycling has always been closely linked to environmental stewardship and this, added to the scarcity of virgin materials resources in parts of California, has resulted in Caltrans aggressively pursuing recycling in their pavement projects. However, there are limited and unreliable data for quantifying the environmental impacts of EOL treatments. This paper provides benchmarking of alternative EOL treatments in California by developing locally-representative models for material production and simulating state of the practice construction activities in the state through field investigations and communication with contractors and experts.
