An experimental study of the effect of mineral hardness contrast in aggregates on long-term pavement friction
Source abstract
Abstract
This study emphasises the significance of aggregate hardness contrast in influencing long-term pavement friction. Eight types of aggregates with varying quartz content were tested. Mosaics built with the selected aggregates, representing pavement layers, underwent polishing tests to evaluate their long-term friction. The results revealed a parabolic variation, peaking at 50% quartz, confirming that the Aggregate Hardness Parameter is crucial for long-term pavement friction. Consequently, long-term pavement friction relies on significant hardness variation among aggregate minerals, rather than solely their average hardness. This finding contradicts the well-established view that a higher quartz content in aggregates consistently enhances their long-term friction retention.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Asphalt Pavement Performance Evaluation · Adhesion, Friction, and Surface Interactions · Surface Roughness and Optical Measurements
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Goodyear
Université Gustave Eiffel
References (29)
Show source-provided references
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