What is it about?
Aggregate packing is the primary determinant of the shear strength, stiffness, and durability of asphalt mixes. We have shown that the significant knowledge embedded in the basic aggregate gradation curve has the potential to improve understanding of asphalt compaction and rut resistance.
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Why is it important?
Based on the well-known Bailey method, the basic aggregate grading curve is used to determine various revised rational Bailey ratios (RBRs) that adhere to the contiguous aggregate fractions. Our work indicates that the revised RBRs can be used to optimize asphalt mix designs via benchmarking methodology.
Perspectives
The work upon which this article is based allowed me the opportunity to collaborate with colleagues who have extensive experience in the research area.
Julius Joseph Komba
University of Pretoria
Read the Original
This page is a summary of: Benchmarking Contiguous Aggregate Ratios with Asphalt Compactability and Rut Resistance, Journal of Testing and Evaluation, January 2026, ASTM International,
DOI: 10.1520/jte20240309.
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