An italian research on mechanical properties on asphalt with tire-rubber

In Palermo a research study was initiated with following objectives: characterisation of the asphalt with tire rubber; study of pavements overlaid with this type of asphalt; cost estimation of asphalt rubber production process.This paper describes the first results achieved in the study concerning the mechanical properties of asphalt with tire rubber for road base and base course.In this research on dry process, more than 400 specimens have been tested at the DIIV laboratory for analysing the influences of crumb rubber modifier and powdered rubber modifier on the Marshall and indirect tensile test.