Abstract
Several studies show that properties of Hot Mixture Asphalt (HMA) mix design materials, aggregate gradation and volumetric properties had an influence on their resistance to rutting. However, these properties do not impact in the same way this performance. For a given aggregate type, an infinity aggregate gradation type can be observed, and for each type of HMA several types of bituminous binder can be used. This article aims to measure the evolution of resistance to rutting according to the three main classes of National Cooperative Highway Research Program (NCHRP) aggregate gradation (dense-graded, fine-graded and coarse-graded). To this end, a study was conducted on the measurement of rutting resistance for eight bituminous mixtures manufactured with two bitumen types and two types of manufacturing aggregates. The results showed that there is a priority order of these different parameters on the influence of the resistance to rutting. This highlights a competition between the properties of aggregate and type of granular skeleton. Indeed, for the same type of aggregate, asphalt binder type first impacts resistance to rutting of the HMA followed by aggregate gradation, volumetric properties of the mix and finally by the angularity of the aggregates. However, this order cannot be fixed and can depend of the intensity of each parameter.
Highlights
Rutting generally refers to permanent deformation phenomena of the transverse profile of the roadway, which appear and grow as a result of traffic [1] [2]
Several studies show that properties of Hot Mixture Asphalt (HMA) mix design materials, aggregate gradation and volumetric properties had an influence on their resistance to rutting
A study was conducted on the measurement of rutting resistance for eight bituminous mixtures manufactured with two bitumen types and two types of manufacturing aggregates
Summary
Rutting generally refers to permanent deformation phenomena of the transverse profile of the roadway, which appear and grow as a result of traffic [1] [2]. El-Mamlouk and Basyouny [9] claimed that the coarse-graded HMA with great NMAS is more resistant to permanent deformation than fine-graded asphalt mixture. In this article a first approach to this interaction will be sought through the measurement of the resistance to rutting of bituminous mixtures with eight HMA manufactured with three classes of granularity granular skeletons [5]. These asphalt mixtures are manufactured with two types of aggregates (basalt and quartzite) and two types of asphalt binder (PG76-16 and PG 70-16), having substantially the same zeta potential and different flattening coefficients different fraction 8/16
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
