Recycling of low-value packaging films in bitumen blends: A grey-based multi criteria decision making approach considering a set of laboratory performance and environmental impact indicators

Many road construction and maintenance projects are increasingly using recycled material as pavement material. Most of the times, generic sustainability evaluations ascribed to products without fully considering their performance. The potential environmental benefits various alternatives can be analytically evaluated with Life Cycle Assessment while many performance indicators found through laboratory field tests. However, it is highly uncommon for these two approaches combined in same assessment methodology most analyses rely on one or other. Trading off between advantages durability considered utmost importance when evaluating alternatives, especially large projects. This study utilizes plastic packaging films bitumen modification. polyolefin blend a combination linear low-density polyethylene (LLDPE/LDPE). LLDPE/LDPE was added at dosages (i.e., from 3% 12% by weight bitumen) assess effect binder physio-chemical, rheological thermal In addition tests, an LCA study. Finally, outcomes (laboratory impact assessment) were via grey relational analysis identify best overall alternative. It that storage stability modified blends varied 6 °C 57 whereas value A35P 2 °C. Softening point 44.1 which improved 55.7–104.1 different content LLDPE/LDPE. melting temperature 100.22, 101.44, 101.87 102.49 LLDPE/LDPE-3%, LLDPE/LDPE-6%, LLDPE/LDPE-9% LLDPE/LDPE-12%. highlighted paper easily adapted other scenarios, hence facilitating multi-attribute decision-making processes incorporating materials roads leading better informed decisions.