According to WPB, In the ever-evolving field of asphalt technology, recent investigations published on 5 November 2025 have demonstrated a highly promising strategy to significantly enhance the mechanical, thermal, and oxidative properties of bitumen through the incorporation of recycled industrial polymers, particularly EPDM (ethylene propylene diene monomer), both independently and synergistically with styrene-butadiene-styrene (SBS). The study employed a systematic approach to modifying 70/100 penetration-grade bitumen, exploring a variety of concentrations and combinations of these polymers to identify optimal performance parameters. Experimental observations revealed that the inclusion of EPDM alone improved thermal stability and softening point modestly; however, when combined with SBS, the resultant bitumen exhibited a markedly enhanced performance profile. Notably, the elastic recovery increased by approximately 130%, rutting resistance by up to 25%, and oxidative stability by nearly 70%, indicating a robust material capable of enduring extreme mechanical stresses and varying environmental conditions, including temperature fluctuations, heavy traffic loads, and prolonged aging.
The underlying mechanism is attributed to the formation of an integrated polymeric network within the bitumen matrix, where EPDM provides elasticity and resilience, while SBS contributes structural reinforcement and viscoelastic behavior. This synergistic interaction not only enhances the physical properties but also facilitates the distribution of applied loads, thereby reducing permanent deformation and cracking over the lifespan of the asphalt. From an industrial perspective, these improvements translate directly into pavements that require less frequent maintenance, experience fewer failures, and offer extended service life, which is of paramount importance for urban infrastructure and major highway systems.
Moreover, the environmental implications of this approach are profound.
By utilizing recycled EPDM, an otherwise discarded industrial material, the study provides a sustainable alternative that mitigates landfill accumulation and reduces the environmental footprint of pavement construction. This aligns with global initiatives to promote circular economy practices, emphasizing resource efficiency and the responsible management of industrial waste. The dual benefits of enhanced performance and environmental stewardship highlight the strategic value of polymer-modified bitumen for contemporary and future road engineering.
This research underscores the potential of integrating recycled polymers into asphalt technology as a feasible, scalable, and environmentally conscious approach to infrastructure development. The findings encourage further exploration of polymer combinations, optimization of additive concentrations, and long-term field testing to fully realize the advantages of modified binders in diverse climatic and loading scenarios. Ultimately, the study demonstrates that sustainable materials engineering, when carefully designed and implemented, can achieve a convergence of performance excellence and ecological responsibility, thereby laying the groundwork for durable, resilient, and environmentally responsible asphalt pavements.
By WPB
News, Bitumen, Bitumen Performance, EPDM, SBS, Asphalt
If the Canadian federal government enforces stringent regulations on emissions starting in 2030, the Canadian petroleum and gas industry could lose $ ...
Following the expiration of the general U.S. license for operations in Venezuela's petroleum industry, up to 50 license applications have been submit ...
Saudi Arabia is planning a multi-billion dollar sale of shares in the state-owned giant Aramco.
