TY - JOUR
T1 - Crumb Rubber in cold recycled bituminous mixes
T2 - Comparison between Traditional Crumb Rubber and Cryogenic Crumb Rubber
AU - Dondi, Giulio
AU - Tataranni, Piergiorgio
AU - Pettinari, Matteo
AU - Sangiorgi, Cesare
AU - Simone, Andrea
AU - Vignali, Valeria
PY - 2014
Y1 - 2014
N2 - Today recycling is one of the most innovative and interesting techniques for the rehabilitation of destressed road pavements. In recent years the increased interest in this process, has led to the development of various alternative methods for the recovery and the reuse of road bituminous materials. Cold recycling is, among the recycling techniques, certainly the most studied and developed: it allows the recovering of bituminous material from an existing pavement without the addition of heat, whilst ensuring the creation of high quality bound base layers. A wide range of materials have been tested together with Reclaimed Asphalt Pavement (RAP) and, consequently, there is a large number of variables that can be considered in the mix-design process of new eco-friendly Cold Recycled Mixes. In particular, the present research involves the use of Crumb Rubber within a mixture containing 100% Reclaimed Asphalt Pavement, cold recycled with bitumen emulsion and cement. Two different Crumb Rubbers were adopted: one from the ambient production method, and one produced with the cryogenic process. The goal of this research project was to analyze and evaluate the different physical and mechanical characteristics induced by the shared use of two different types of Crumb Rubber in the Cold Recycled Mixes.
AB - Today recycling is one of the most innovative and interesting techniques for the rehabilitation of destressed road pavements. In recent years the increased interest in this process, has led to the development of various alternative methods for the recovery and the reuse of road bituminous materials. Cold recycling is, among the recycling techniques, certainly the most studied and developed: it allows the recovering of bituminous material from an existing pavement without the addition of heat, whilst ensuring the creation of high quality bound base layers. A wide range of materials have been tested together with Reclaimed Asphalt Pavement (RAP) and, consequently, there is a large number of variables that can be considered in the mix-design process of new eco-friendly Cold Recycled Mixes. In particular, the present research involves the use of Crumb Rubber within a mixture containing 100% Reclaimed Asphalt Pavement, cold recycled with bitumen emulsion and cement. Two different Crumb Rubbers were adopted: one from the ambient production method, and one produced with the cryogenic process. The goal of this research project was to analyze and evaluate the different physical and mechanical characteristics induced by the shared use of two different types of Crumb Rubber in the Cold Recycled Mixes.
KW - Cold Recycled Mixes
KW - Reclaimed Asphalt Pavement
KW - Cryogenic Crumb Rubber
KW - Ambient Crumb Rubber
KW - Rubberized mixture
KW - Fatigue life
KW - Workability
U2 - 10.1016/j.conbuildmat.2014.06.093
DO - 10.1016/j.conbuildmat.2014.06.093
M3 - Journal article
VL - 68
SP - 370
EP - 375
JO - Construction and Building Materials
JF - Construction and Building Materials
SN - 0950-0618
ER -