Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effect of Reclaimed Asphalt Pavement Content and Binder Grade on Fatigue-Resisting Performance of Asphalt Mixtures in Georgia
AbstractThis paper examines the effects of reclaimed asphalt pavement (RAP) content and binder grade on the fatigue resistance of Georgia asphalt concrete mixtures. The asphalt concrete mixtures were prepared based on two job mix formulas used in northern and southern Georgia and were composed of 12.5-mm nominal maximum aggregate size aggregate and three asphalt binders (PG 64-22, PG 67-22, and PG 76-22). Dynamic modulus and controlled crosshead cyclic tension fatigue tests were performed using the laboratory-prepared specimens. A simplified viscoelastic continuum damage (S-VECD) model was characterized for each mixture using the dynamic modulus and fatigue test results. The layered viscoelastic pavement analysis for critical distresses (LVECD) program was used to investigate the effects of RAP content and binder grade on the fatigue performance of pavements. The S-VECD model and LVECD program analyses showed that the addition of RAP up to 30% using corrected optimum asphalt content (COAC) method significantly improved the mixtures’ fatigue resistance, especially for the mixtures with PG 64-22 and PG 67-22 binders.
Effect of Reclaimed Asphalt Pavement Content and Binder Grade on Fatigue-Resisting Performance of Asphalt Mixtures in Georgia
AbstractThis paper examines the effects of reclaimed asphalt pavement (RAP) content and binder grade on the fatigue resistance of Georgia asphalt concrete mixtures. The asphalt concrete mixtures were prepared based on two job mix formulas used in northern and southern Georgia and were composed of 12.5-mm nominal maximum aggregate size aggregate and three asphalt binders (PG 64-22, PG 67-22, and PG 76-22). Dynamic modulus and controlled crosshead cyclic tension fatigue tests were performed using the laboratory-prepared specimens. A simplified viscoelastic continuum damage (S-VECD) model was characterized for each mixture using the dynamic modulus and fatigue test results. The layered viscoelastic pavement analysis for critical distresses (LVECD) program was used to investigate the effects of RAP content and binder grade on the fatigue performance of pavements. The S-VECD model and LVECD program analyses showed that the addition of RAP up to 30% using corrected optimum asphalt content (COAC) method significantly improved the mixtures’ fatigue resistance, especially for the mixtures with PG 64-22 and PG 67-22 binders.
Effect of Reclaimed Asphalt Pavement Content and Binder Grade on Fatigue-Resisting Performance of Asphalt Mixtures in Georgia
Kim, S. Sonny (Autor:in) / Norouzi, Amirhossein / Kim, Y. Richard / Yang, Jidong
2017
Aufsatz (Zeitschrift)
Englisch
BKL:
56.45
Baustoffkunde
Lokalklassifikation TIB:
535/6520/6525/xxxx
| British Library Online Contents | 2017
Effect of Reclaimed Asphalt Pavement (Proportion and Type) and Binder Grade on Asphalt Mixtures
| British Library Online Contents | 2008
| British Library Online Contents | 2016
| British Library Online Contents | 2012