Investigation of rutting potential of Open Graded Friction Course (OGFC) mixes using asphalt pavement analyzer

Abstract

This study presents a laboratory evaluation on rutting resistance of Open Graded Friction Course (OGFC) mixes made with different polymer modifiers and coarse aggregate sizes. For this research work, six mix designs for three polymer modifiers (3% SBS modified, 6% LDPE modified, and 12% rubber modified) and two aggregate sizes (13 mm and 10 mm) were carried out to determine the optimum asphalt contents. The OGFC specimens were fabricated using the Superpave gyratory compactor at a compaction level of 50 gyrations. The air void contents and final rut depths of the mixtures were measured by the Corelok system and the Asphalt Pavement Analyzer (APA), respectively. In general, the results indicated that the polymer modifier plays an important role in the rutting resistance of the OGFC mixes used in this study. With respect to the coarse aggregate size, it was found to have little effect on the rutting potential.

Influence of Type of Modified Binder on Stiffness and Rutting Resistance of Low-Noise Asphalt Mixtures

“…The resulting permanent deformations prevent the proper drainage of water from the road surface, which significantly affects road safety and reduces driving comfort. Therefore, many research centers are looking for effective methods of counteracting the initiation of this type of damage [ 14 , 15 , 16 , 17 ]. The resistance of asphalt mixtures designed by the Superpave method with the use of a gyratory compactor and AC depends on the effectiveness of aggregate wedging [ 18 , 19 ].…”

Structural contribution of open-graded friction course mixes in mechanistic–empirical pavement design

“…Through laboratory asphalt pavement analyser (APA) tests, Jeong et al found that the polymer modifier plays an important role in the rutting resistance of the OGFC mixes, but the coarse aggregate size does not (Jeong et al 2011). Based on laboratory testing and numerical modelling, Roque et al (2009) found that the use of polymer-modified bonding agent between the OGFC and its underlying layer can significantly enhance its cracking resistance.…”