Abstract
To address the continuous attenuation of skid resistance in ultra-thin wearing courses during long-term service, this study, based on the principle of differential abrasion of aggregates, analyzes the intrinsic relationship between the evolution of pavement macro- and microtexture and aggregate abrasion, and explores the effects of replacing diabase with equal masses of limestone of different particle sizes on the skid resistance of asphalt mixtures. A wheel abrasion tester was used to simulate the long-term abrasion process of pavement aggregates under repeated vehicle loading. Macro- and microtexture data of the mixtures were collected through the sand patch texture depth test, British pendulum test, and PATT- Ⅱ pavement skid-resistant texture tester. The variations in texture depth, pendulum value, and surface texture distribution characteristics with the number of abrasion cycles were analyzed for different aggregate blending schemes, and the skid resistance of each mixture over its full life cycle was evaluated to determine the optimal aggregate blending scheme. The results show that the skid resistance indices of asphalt mixtures with all aggregate blending schemes exhibit consistent variation trends. The texture depth and pendulum value decrease most rapidly at the initial stage of abrasion (0‒1 000 cycles ), while the rates of decrease gradually slow down in the middle and later stages, showing an overall trend of rapid early-stage attenuation followed by relative stability. Among them, the S 2.36 mixture exhibits the best skid resistance. After long-term abrasion, the pendulum value remains at 56 BPN, and the attenuation rate of texture depth is only 30.36%, indicating significantly better skid resistance durability than the other mixtures. The surface texture distribution density of the S 2.36 mixture remains stable, its dispersion remains moderate, and the diversity of texture morphology is significantly enhanced, thus effectively suppressing the attenuation of skid resistance. Overall, the aggregate proportion designed based on differential abrasion of aggregates can effectively improve the skid resistance durability of asphalt mixtures for ultra-thin wearing courses. The S 2.36 blending scheme can simultaneously ensure the initial skid resistance and long-term service stability of the pavement, providing a reliable theoretical basis and technical support for material proportion optimization and practical engineering application of ultra-thin wearing courses.
Publication Date
8-16-2026
DOI
10.14048/j.issn.1671-2579.2026.04.006
First Page
51
Last Page
61
Submission Date
August 2026
Recommended Citation
Jianguo, Wei; Junting, Hu; Ping, Li; Jing, Mao; Xiaohui, Yuan; and Chengxi, Yi
(2026)
"Skid resistance of asphalt mixtures based on differential abrasion,"
Journal of China & Foreign Highway: Vol. 46:
Iss.
4, Article 6.
DOI: 10.14048/j.issn.1671-2579.2026.04.006
Available at:
https://zwgl1980.csust.edu.cn/journal/vol46/iss4/6
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