The more and more frequent use of recycled materials within the road and railway infrastructures is nowan irreversible trend. In this area the use of Dry Asphalt Rubber Concrete (DARC) in sub-ballast layerseems to be a suitable technique to reach high mechanical and environmental performance even if suchmaterial should be analyzed over a long time horizon.This paper presents the results of experimental research focused on the resistance to fatigue of DryAsphalt Rubber Concrete in sub-ballast layers; the survey has been carried out using four-point bendingtest (4pbt) on mixture samples with different rubber contents. The results of fatigue in DARC have beencompared with the performance of different mixes such as a standard hot mix asphalt without rubber anda rubber-modified asphalt concrete (RUMAC-Dry).It has been found that fatigue performance of Dry Asphalt Rubber Concrete is broadly comparable toother mixes, making it a very attractive material in terms of technical and economic skills.
|Numero di pagine||15|
|Stato di pubblicazione||Published - 2015|