The presence of aged bitumen in reclaimed asphalt pavement (RAP) materials leads to potential cracking-related issues, thereby limiting the quantity of RAP that can be incorporated in a bituminous mix. To address the same, recycling agents are added to facilitate modification of the chemical composition of the aged binder such that the recycled binder meets the target rheological properties. Altogether, the binder in the hot-recycled bituminous mixture constitutes a blend of the aged binder, virgin bitumen and recycling agent. The rheological response of this recycled blend is influenced by the constituent material characteristics. In addition, the influence of a specific recycling agent is expected to vary depending on the age of the RAP binder. Therefore, the design of recycled blends necessitates fundamental characterisation, such as insights into the aging phenomenon of bitumen and the changes brought about by adding recycling agents. In this research proposal seminar, the following aspects will be discussed. (i) Formulation of binder aging procedures to obtain binders aged to different extents, (ii) Ascertaining the influence of recycling agents on binders aged to different extents by comparing the recycled RAP binders with the base binder used for aging, and (iii) Proportioning of the recycled blend constituents by applying material characterisation augmented with statistics.