Evaluating the Rutting and Cracking Resistance of Asphalt Mixes Subjected to Different Silo Storage Times

• DOI: 10.1520/jte20220326
• Publication Date: 2022-11-19T07:22:41Z
• Authors: Mohamed Elkashef; John T. Harvey; David Jones; Liya Jiao
• Keywords: Asphalt pavement

Abstract Plant-produced asphalt mixes can be stored in the silo for a few hours prior to being transported construction site. The undergo additional aging during storage because of high temperature silo. This is not accounted mix design process and could greatly influence properties. Additional blending between virgin recycled binder also take place containing reclaimed pavement or shingles. In this study, four were collected from different regions within California before after storage. plant-produced sampled at hot drop point directly plant discharge, as well 5–16 h. rutting cracking behavior was assessed using Hamburg wheel tracking (HWT) test, repeated load triaxial (RLT) indirect tensile test (IDEAL-CT). rut depth HWT flow number cycles 5 % permanent strain unconfined RLT CTindex IDEAL-CT determined results clearly show that has notable effect on both resistance, even short durations (i.e., 5–6 h). given by results, increased three out storage, whereas resistance decreased all mixes.