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<p>The SUPERPAVE mix design requires asphalt binders with performance grades (PG) suited to local climates. In Saudi Arabia, locally produced PG 64 − 22 binders often fail under high temperatures, necessitating polymer modification. This study evaluates polymer-modified asphalts (PMA) made with six polymers including Lucolast 7010, Anglomak 2144, Pavflex 140, SBS KTR 401, EE-2, and Crumb Rubber, based on SUPERPAVE standards. All modifiers improved high-temperature performance, meeting rutting resistance requirements, while reducing creep at low temperatures, remaining compliant with specifications.</p>

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Analysis of Performance Grades for Polymer-Modified Asphalt: A Technical Note

  • 期刊论文

  • 发表日期：

    2025年5月5日

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  • Ali Mohammed Babalghaith,
  • Amr Ali Shokri,
  • Mohammed Benaafi,
  • Nur Izzi Md. Yusoff,
  • Abdalrhman Milad

摘要

The SUPERPAVE mix design requires asphalt binders with performance grades (PG) suited to local climates. In Saudi Arabia, locally produced PG 64 − 22 binders often fail under high temperatures, necessitating polymer modification. This study evaluates polymer-modified asphalts (PMA) made with six polymers including Lucolast 7010, Anglomak 2144, Pavflex 140, SBS KTR 401, EE-2, and Crumb Rubber, based on SUPERPAVE standards. All modifiers improved high-temperature performance, meeting rutting resistance requirements, while reducing creep at low temperatures, remaining compliant with specifications.