Reclaimed asphalt concretes with high recycling rates: Changes in reclaimed binder properties according to rejuvenating agent

Determining optimum rejuvenator dose for asphalt recycling based on Superpave performance grade specifications

“…The figure also demonstrates that an exponential function can be fitted extremely well on the data points (R 2 > 0.99). The exponential increase in penetration with higher dose of addition of rejuvenator concurs well with the results of a study by Dony et al [26], but does not agree with the results from other studies that have demonstrated somewhat linear change of penetration [27,28].…”

Impact of rejuvenators on aging properties of bitumen

“…It has been shown that the rejuvenators significantly lower the stiffness and improve the cracking resistance [3][4][5]. Hence, it is possible to obtain the same rheological properties of the target virgin binder by mixing the aged binder with a rejuvenator, however, the chemical composition, the ratio of asphaltenes to maltenes, of the rejuvenated binder is significantly different from that of the virgin bitumen [6][7][8] which may affect the long term performance of the RAP mix.…”

Recycled asphalt mixtures produced with high percentage of different waste materials

“…Several techniques are amply developed to incorporate this type of materials and their selection depends on the country and on the materials and methods available [3][4][5][6]. The technological evolution observed in the last years has resulted in an increase of the amount of RA incorporated in the production of new/recycled asphalt mixtures, being possible to include RA percentages in the order of 50% [7][8][9].…”