摘要：AbstractThe purpose of this study was to evaluate the performance of warm mix asphalt (WMA) mixtures containing different percentages of Cecabase® RT using dynamic modulus (|E*|), tensile strength ratio (TSR), four point beam fatigue, flow number and asphalt pavement analyzer (APA) rutting tests. In this study, 0.2%, 0.35% and 0.5% Cecabase® RT were incorporated in the 5E3 Superpave mixtures prepared at three different temperatures, 100°C, 115°C and 130°C. A Hot Mix Asphalt (HMA) mixture was used as the control mixture. All the mixture samples were prepared using PG 58-34 binder and compacted at 86 gyrations under different temperatures. The rheological and aging property of control HMA and WMA made with 0.2%, 0.35% and 0.5% Cecabase® RT were tested by Dynamic Shear Rheometer (DSR). From the results, it was found that WMA has significantly lower aging factor compare to control HMA results in higher rutting at the early stage of pavement serviceability. It was also noticed that an increment of Cecabase® RT added and the production temperatures used in preparing WMA specimens do not significantly affect the |E*|, fatigue life, TSR and tensile strength of mixtures. Subsequently, the rutting resistance of the WMA reduced when more Cecabase® RT was added and lower mixing/compacting temperatures were used.
