Black Space Rheological Assessment of Asphalt Material Behavior

Black Space diagrams representing rheological data of asphalt materials in the form complex modulus (|G*| or |E*|) versus phase angle (δ) have been successfully used for interpretation material behavior and performance. Previous studies identification testing geometry compliance errors when over multiple temperatures loading times (frequencies), screening “thermo-rheological simplicity” various binders mixtures, detailed evaluation performance balance term “stiffness” “relaxation” needs. This paper provides an overview how can be further to provide a greater understanding concepts damage healing cracking susceptibility fracture, also quantify response alternative binders. In terms assessment, cyclic tests were analyzed using identify additional physical phenomena such as nonlinearity, self-heating, thixotropy. The analysis has included thermal, fatigue, durability well use access mixtures subjected aging rejuvenation with recycled asphalt. Concepts Glover-Rowe parameter that are based around linked other forms indices low-temperature stiffness relaxation rate parameters introduced. results show critical means characterization investigate evaluate properties both mixtures. is particularly relevant at time there concerted move within paving industry toward more sustainable solutions increased demand reuse recycling