Experimental study of Compression-Tension asymmetry in asphalt matrix under Quasi-static and dynamic loads via an integrated DMA-based approach

This research presents an experimental approach to study the mechanics of asphalt matrix, a crucial component in concrete, consisting binder, fine aggregates and filler. Understanding its response is essential guide improve new designs advanced concrete. The proposed makes use dynamic mechanical analysis (DMA) execute variety quasi-static tests under tension compression. Uniaxial reveal remarkable compression-tension asymmetry matrix terms stiffness strength. peak stress can be 5 3 times, respectively, larger compression than tension. Both properties strongly depend on strain rate, albeit are more sensitive A straightforward equation for creep rupture envelop derived by performing at different levels. Amplitude frequency sweep fatigue-recovery test performed explore inherent self-healing capabilities room temperature. Doubling regularity resting periods significantly helps regain it leads 4-times extension fatigue life.