沥青混合料受压结构力链组成特征分析

doi:10.11896/cldb.24030044

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Abstract To quantitatively evaluate the contribution of components in asphalt mixture under compression, a high-precision 3D model construction met-hod was proposed based on the discrete element method. Uniaxial compression simulation at room-temperature was achieved, visualizing the strength distribution of force chains. The concept of strong-weak force chains was proposed to characterize the force characteristics, and using statistical methods for force chain analysis. The results show that under uniaxial compression mode, the internal contact force of SMA13 is 61.9% provided by aggregates, while AC13 is only 24.9%. Aggregates only take effect under compression, and asphalt mortar can resist compression and tension. The proportion of asphalt mortar affects the stress distribution, with a strength chain accounting for 35%—45% and evenly distributed. The strength of the force chain gradually decreases as the angle approaches the horizontal direction, and the amplitude of change in the strength of the interface force chain is small. Asphalt mixture design should be based on the mechanical characteristics of each component.

Key words： asphalt mixture discrete element method uniaxial compression force chains

Published: 10 January 2026 Online: 2026-01-09

CLC number:

U414

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	WANG Wei

Cite this article:

WANG Wei. Characteristics of Force Chain Composition in Asphalt Mixture Under Compression[J]. Materials Reports, 2026, 40(1): 24030044-6.

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https://www.mater-rep.com/EN/10.11896/cldb.24030044 OR https://www.mater-rep.com/EN/Y2026/V40/I1/24030044

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