Scholarlink

This study compares conventional thermal aging (RTFOT, PAV) with simulated environmental aging (UV-vis, moisture, heat) to evaluate two innovative bio-based binders benchmarked in comparison to a conventional 70/100 bitumen. The first is a semi-vegetal binder (bitumen 20/30 with Tall Oil Pitch, TOP), while the second is a clear binder (TOP, rosin ester, SBS). Results highlight that the two aging methods impact bio-binders differently: Under thermal aging, the clear binder exhibit performances that seem to be maintained while the bitumen ages and sees its modulus increase, a well-known phenomenon. However, under environmental aging, both bio-based materials, particularly the clear binder show high sensitivity to UV-vis and moisture-induced degradation. Conversely, the fossil bitumen displays consistent trends. These findings emphasize the need to adapt laboratory aging procedures to better reflect the durability of bio-based binders in service.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Different Aging Behaviors of Conventional Bitumen and Bio-Based Tall Oil Pitch Binders Under Conventional and Environmental Aging

  • 会议论文

  • 发表日期：

    2026年

查看全文
  • Justine Cantot,
  • Inès Charradi,
  • Elio Ziade,
  • Aurelia Nicolaï,
  • Emmanuel Chailleux

摘要

This study compares conventional thermal aging (RTFOT, PAV) with simulated environmental aging (UV-vis, moisture, heat) to evaluate two innovative bio-based binders benchmarked in comparison to a conventional 70/100 bitumen. The first is a semi-vegetal binder (bitumen 20/30 with Tall Oil Pitch, TOP), while the second is a clear binder (TOP, rosin ester, SBS). Results highlight that the two aging methods impact bio-binders differently: Under thermal aging, the clear binder exhibit performances that seem to be maintained while the bitumen ages and sees its modulus increase, a well-known phenomenon. However, under environmental aging, both bio-based materials, particularly the clear binder show high sensitivity to UV-vis and moisture-induced degradation. Conversely, the fossil bitumen displays consistent trends. These findings emphasize the need to adapt laboratory aging procedures to better reflect the durability of bio-based binders in service.