Investigation on performance and durability of bone glue and crumb rubber compound modified asphalt and its mixture

Xie, Nasi; Peng, Xinghai; He, Yonghai; Lei, Wei; Pu, Changyu; Meng, Huilin; Ma, Huabao; Tan, Li; Zhao, Pei

doi:10.1016/j.cscm.2023.e02437

Cited by 1 publication

(1 citation statement)

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“…With the acceleration of urbanization and transportation demand growth, asphalt pavement application is still promising. In the future, with the advancement of technology and the application of new materials, many researchers will devote themselves to the study of asphalt pavements in terms of materials, design, construction, and maintenance to meet the ever-increasing transportation demand [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Comparative Study on the Dynamic Response of Asphalt Pavement Structures: Analysis Using the Classic Kelvin, Maxwell, and Three-Parameter Solid Models

He,

Lv,

Xie

et al. 2024

Buildings

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This study addressed the complex problems of selecting a constitutive model to objectively characterize asphalt mixtures and accurately determine their viscoelastic properties, which are influenced by numerous variables. Inaccuracies in model or parameter determination can result in significant discrepancies between the calculated and measured results of the pavement’s structural dynamic response. To address this, the research utilized the physical engineering principles of asphalt pavement structure to perform dynamic modulus tests on three types of high-content rubberized asphalt mixtures (HCRAM) within the surface layer. The research aimed to investigate the influencing factors of the dynamic modulus and establish a comprehensive master curve. This study also critically evaluated the capabilities of three viscoelastic models—the three-parameter solid model, the classical Maxwell model, and the classical Kelvin model—in depicting the dynamic modulus of HCRAM. The findings indicated a negative correlation between the dynamic modulus of the asphalt mixture and temperature, while a positive association exists between the loading frequency and temperature, with the impact of the loading frequency diminishing as the temperature increases. Notably, the three-parameter solid model was identified as the most accurate in describing the viscoelastic properties of the HCRAM. Furthermore, the dynamic response calculations revealed that most indexes in the surface layer’s dynamic response are highest when evaluated using the three-parameter viscoelastic model, underscoring its potential to enhance the pavement performance’s predictive accuracy. This research provides valuable insights into optimizing the material performance and guiding the pavement design and maintenance strategies.

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Section: Introductionmentioning

confidence: 99%