Environmental Loads of Pavement Recycling Methods in Japan

In this study, the environmental loads of pavement recycling methods were estimated for three cases using virgin aggregates, plant recycling aggregates, or in-place recycling. The results showed that the environmental loads when using recycled aggregates were less than when using virgin materials, and were far less in the case of in-place recycling, although the environmental loads sometimes increase when the machines for the in-place recycling need to be transported long distances. Thus, recycling methods should be selected in consideration of environmental loads.