Study on Cold Recycled Asphalt Mixtures with Emulsified/Foamed Asphalt in the Laboratory and On-Site

Millions of tons reclaimed asphalt pavement (RAP) and aggregate or inorganic binder stabilized (RAI) is produced every year in China. The cold recycled mixture (CRM) technology reduces fuel consumption, emissions, cost utilizes the high content RAP. In this paper, six types CRM with varying RAP/RAI composition binders were investigated. laboratory tests included strength indicators, temperature stability, low crack resistance, water dynamic modulus. A full-scale trial section was constructed after tests. Except for failure strain without secondary compaction design, test results illustrated that performances different CRMs met specifications. cement addition limited thermo-viscoelastic behavior CRM. RAI contents had reduced sensitivity CRM, emulsified better performance than foamed samples cored from field specifications lower laboratory. curing conditions not as effective method should simulate to guide selection design.