Study on the influence of aggregate strength and shape on the performance of asphalt mixture

Hassan, Hafiz Muhammad Zahid; Wu, Kuanghuai; Huang, Wenke; Chen, Sihang; Zhang, Qiran; Xie, Jiawen; Cai, Xiaodan

doi:10.1016/j.conbuildmat.2021.123599

Cited by 34 publications

(7 citation statements)

References 42 publications

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“…Hassan et al analyzed the internal structure of asphalt mixture prepared by three aggregates with different shape properties, and tried to establish the relationship between the internal structure of asphalt mixture and pavement performance. Results show that the shape and strength of aggregate have a significant effect on the internal structure of asphalt mixture, and then affect the high-temperature and low-temperature performance of asphalt pavements [17].…”

Section: Introductionmentioning

confidence: 99%

Aggregate Geometrical Features and Their Influence on the Surface Properties of Asphalt Pavement

et al. 2022

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Aggregate geometrical features directly affect asphalt pavement surface properties, which further affect the resistance to skidding of a road surface. In order to establish a relationship between the aggregate geometrical features and pavement surface properties, this paper employs an aggregate geometric characteristic evaluation system (AGCES) to describe the form property, angularity, and surface texture of aggregate particles. The geometrical feature parameters of 15 different aggregates were examined by AGCES and the corresponding surface properties of asphalt pavement prepared from the mentioned aggregates were evaluated by sand patch method, 2-Dimension Image-based Texture Analysis Method (2D-ITAM) and Walking Friction Tester (WFT), respectively. The relationships between the pavement surface property parameters and the aggregate geometric characteristic parameters studied were developed by the Levenberg-Marquarat and universal global optimization (LM-UGO). The results show that the calculated geometric characteristic parameters are in agreement with traditional manual measurement results. The pavement surface properties are significantly influenced by aggregate angularity and aggregate surface texture. Regression relationships were established to predict pavement surface properties from the aggregate geometrical features.

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Section: Introductionmentioning

confidence: 99%

Aggregate Geometrical Features and Their Influence on the Surface Properties of Asphalt Pavement

et al. 2022

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“…Asphalt pavement is paved with asphalt mixture composed of asphalt, mineral aggregates and filler [5], the service life of asphalt pavement is closely related to the mechanical strength and shape of aggregates [6]. Aggregates ensure the stable structural strength of the asphalt mixture [7], so there are higher requirements for aggregates in the design of asphalt pavement. Aggregates design includes two aspects.…”

Section: Introductionmentioning

confidence: 99%

Microwave heating mechanism and self-healing performance of asphalt mixture with basalt and limestone aggregates

Zhu

Shu

et al. 2022

Construction and Building Materials

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“…In particular, the aggregate skeleton can significantly influence the rutting resistance of asphalt mixtures. A stable skeleton with good interlocking effects and load transfer ability is necessary to resist deformation during loading [ 1 , 2 ]. The strong and stable skeleton usually relies on high-quality aggregates.…”

Section: Introductionmentioning

confidence: 99%

Crushing Characteristics of Coarse Aggregates for Asphalt Mixtures under Simulated Laboratory Compaction Loads and Repeated Traffic Loads

Jiang

2022

Materials

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The crushing characteristics of coarse aggregates for asphalt concrete were investigated under static and dynamic aggregate crushing value tests (ACVTs). The effect of various compaction loads was also examined by using a Marshall hammer, gyratory compactor and steel roller. Six types of coarse aggregates were tested, including basalt aggregate, steel slag, limestone aggregate, marble aggregate, recycled concrete aggregate and slightly weathered limestone aggregate. Test results indicate that static ACVT failed to reflect the crushing behavior of coarse aggregates under traditional traffic and compaction loads. The type of aggregate strongly influenced the crushing resistance, independent of type of load. The compaction loads simulated by using a Marshall hammer, gyratory compactor and steel roller resulted in a high aggregate breakage ratio and can distinguish the coarse aggregates with high crushing susceptibility. The crushing resistance was evaluated by using various crushing parameters and the corresponding critical value of these parameters was established. Gyratory compactor compaction resulted in more serious aggregate crushing when compared to Marshall hammer and steel roller compaction. Finite element modelling results on roller compaction and Marshall hammer compaction are in agreement with the aggregate crushing results. The aggregate crushing mechanism was found to be controlled by the fracture mode; the contribution of the attrition and abrasion modes was relatively small. When coarse aggregates with low crushing resistance are considered for the use for asphalt mixture, proper compaction is proved to be vital to prevent excessive aggregate breakage during mixture preparation and construction.

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Study on the influence of aggregate strength and shape on the performance of asphalt mixture

Cited by 34 publications

References 42 publications

Aggregate Geometrical Features and Their Influence on the Surface Properties of Asphalt Pavement

Aggregate Geometrical Features and Their Influence on the Surface Properties of Asphalt Pavement

Microwave heating mechanism and self-healing performance of asphalt mixture with basalt and limestone aggregates

Crushing Characteristics of Coarse Aggregates for Asphalt Mixtures under Simulated Laboratory Compaction Loads and Repeated Traffic Loads

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