Fatigue damage evolution rule of cement stabilized macadam used in pavement’s base course at different curing time

Zhang, Jun; Bai, Jinxiao; Wang, Shouxin

doi:10.1016/j.conbuildmat.2022.126827

Cited by 9 publications

(2 citation statements)

References 29 publications

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“…Asphalt pavement, as a common pavement form of high-grade highway, is usually composed of a bed course, subbase course, base course and asphalt concrete surface. Among them, the base assumed the role of drainage, pollution prevention and insulation, and it provided the bearing capacity of asphalt pavement together with the roadbed (Cui et al, 2018;Zhao et al, 2023;Moreno-Navarro et al, 2022;Dong et al, 2022;Zhang et al, 2022a;Said Hicham Boukhalkhal et al, 2019;Katkhuda et al, 2017). However, in the actual project, the base is generally loose granular type and the side of the road shoulder cannot directly discharge the roadbed due to slope rain erosion, resulting in the drainage function into water storage function.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Study on the design and laboratory investigation of permeable semi-rigid base material with large air voids

Li,

Xiao,

Zhao

et al. 2024

IJSI

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PurposeTo explore the economical and reasonable semi-rigid permeable base layer ratio, solve the problems caused by rainwater washing over the pavement base layer on the slope, improve its drainage function, improve the water stability and service life of the roadbed pavement and promote the application of semi-rigid permeable base layer materials in the construction of asphalt pavement in cold regions.Design/methodology/approachIn this study, three semi-rigid base course materials were designed, the mechanical strength and drainage properties were tested and the effect and correlation of air voids on their performance indexes were analyzed.FindingsIt was found that increasing the cement content increased the strength but reduced the air voids and water permeability coefficient. The permeability performance of the sandless material was superior to the dense; the performance of the two sandless materials was basically the same when the cement content was 7%. Overall, the skeleton void (sand-containing) type gradation between the sandless and dense types is more suitable as permeable semi-rigid base material; its gradation is relatively continuous, with cement content? 4.5%, strength? 1.5 MPa, water permeability coefficient? 0.8 cm/s and voids of 18–20%.Originality/valueThe study of permeable semi-rigid base material with large air voids could help to solve the problems of water damage and freeze-thaw damage of the base layer of asphalt pavements in cold regions and ensure the comfort and durability of asphalt pavements while having good economic and social benefits.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study on the design and laboratory investigation of permeable semi-rigid base material with large air voids

Li,

Xiao,

Zhao

et al. 2024

IJSI

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Mechanism-based shift factors to predict the fatigue performance of cemented pavement materials

Le,

Bui,

Nguyen

et al. 2024

Acta Geotech.

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Cemented pavement materials (CPMs) are essential components in pavement structures, yet accurately predicting their service life due to fatigue damage remains challenging. Laboratory fatigue test results are commonly employed to predict the service life of CPMs by applying a lab-to-field shift factor (SF). However, traditional approaches rely heavily on experimental data, posing challenges in ensuring the certainty of lab-to-field results. Additionally, inconsistencies in lab-to-field fatigue failure criteria further complicate SF development. To address these challenges, this study proposes a mechanism-based methodology for developing SF. This methodology comprises a rigorous two-scale fatigue model developed by the authors to characterise the fatigue performance of CPMs at the lab scale and predict their performance at the field scale, thereby facilitating the development of SFs. These SFs are established based on a consistent lab-to-field fatigue failure criterion (i.e. the modulus reduction of CPMs). By accounting for strain differences between laboratory and field scales, SFs are derived in the strain-fatigue life space. Application of this approach to typical Australian CPMs, namely siltstone and hornfels, yields mechanism-based SFs of 1.19 and 1.21, respectively.

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Compaction method development and materials performance evaluation of large size cement-treated macadam materials

Deng

Jiang

et al. 2023

Construction and Building Materials

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Fatigue damage evolution rule of cement stabilized macadam used in pavement’s base course at different curing time

Cited by 9 publications

References 29 publications

Study on the design and laboratory investigation of permeable semi-rigid base material with large air voids

Study on the design and laboratory investigation of permeable semi-rigid base material with large air voids

Mechanism-based shift factors to predict the fatigue performance of cemented pavement materials

Compaction method development and materials performance evaluation of large size cement-treated macadam materials

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