Development of mechanistic–empirical design method for an asphalt pavement rutting model using APT

Suh, Young-Chan; Cho, Nam Hyun; Mun, Sungho

doi:10.1016/j.conbuildmat.2010.10.014

Cited by 23 publications

(4 citation statements)

References 3 publications

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“…One of the fundamental components of MEMs for flexible pavements is the layered elastic analysis, which calculates the stress, strain, and deflection responses within the pavement structure [24][25][26][27]. The following equations are commonly used in MEMs for layered elastic analysis.…”

Section: Layered Elastic Analysismentioning

confidence: 99%

An Appraisal of Mechanistic-Empirical Models (MEMs) in Pavement Deterioration

Tiza

2023

JANSET

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This research paper presents an appraisal of Mechanistic-Empirical Models (MEMs) in pavement deterioration assessment. The study examines various MEMs used in the analysis of flexible pavements, including Westergaard's Equation, Boussinesq's Equation, NCHRP 1-37A, AASHTO MEPDG, EICM, and FPO Software. The equations, parameters, limitations, and advantages of each model are thoroughly evaluated. The significance of MEMs in pavement deterioration assessment is highlighted, emphasizing their ability to provide a mechanistic understanding of pavement behavior and enable accurate predictions of performance. The paper offers recommendations for practitioners and researchers, including the adoption and implementation of MEMs, collaboration and data sharing, enhanced model inputs, standardized calibration protocols, continuous model improvement, and training and education. The conclusion emphasizes the value of MEMs in pavement engineering while acknowledging the need for further improvement and research. The findings of this study contribute to advancing the appraisal and utilization of MEMs in pavement deterioration assessment, ultimately leading to improved pavement designs, optimized maintenance strategies, and informed decision-making in the field of pavement engineering.

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Section: Layered Elastic Analysismentioning

confidence: 99%

An Appraisal of Mechanistic-Empirical Models (MEMs) in Pavement Deterioration

Tiza

2023

JANSET

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“…However, they cannot completely simulate the working states of real pavement, such as continuously varied loads and temperatures. Therefore, field accelerated loading tests, such as accelerated loading facility and accelerated pavement testing, are used to investigate permanent deformation and establish a life-cycle prediction model of rutting [ 16 , 17 , 18 ]. However, theses field accelerated loading tests would be hugely expensive to perform for large-scale road tests and the testing can only be carried out for certain structural compositions of pavement.…”

Section: Introductionmentioning

confidence: 99%

The Relationship between Poisson’s Ratio Index and Deformation Behavior of Asphalt Mixtures Tested through an Optical Fiber Bragg Grating Strain Sensor

2022

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Flow-rutting is the main distress leading asphalt pavement to undergo premature maintenance, and is produced by the rapid accumulation of shear deformation in asphalt layers under high temperature and heavy loads. The excessive permanent deformation of the asphalt mixture at high temperature is related to the decrease of the material’s stability during the temperature increase and an unfavorable stress state, e.g., low confining pressure and high shear stress, which eventually leads to significant nonlinear viscoplastic behavior. In this research, dynamic modulus tests and repeated loading tests were carried out at 35 °C and 50 °C to analyze the deformation response of materials under a strain amplitude of <200 με and 400~500 μεs, respectively. Based on the in-lab repeated loading tests, the total deformation of the asphalt mixture in each loading and rest cycle was divided into three parts, being elastic, viscoelastic, and viscoplastic strain, and the measurement of the axial and lateral strain of cylindrical samples was realized with the aid of optical fiber Bragg grating strain sensors. It was found that the experimental index of the ratio between lateral strain and longitudinal strain (RLSLS), derived, but distinguished, from Poisson’s ratio defined limited in elastic strain, can characterize the deformation in viscoelastic and viscoplastic behaviors of the mixes. Furthermore, the indices of dynamic modulus, phase angle, complex Poisson’s ratio, stiffness, and creep rate of four types of mixes containing different volcanic ash fillers and asphalt binders at 35 °C and 50 °C were systematically analyzed by the jointed experiments of modified dynamic modulus tests and repeated loading tests, and their consistent trending to the RLSLS index was obtained.

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“…Vertical deformation law with 85% reliability: Quoted in (Shell, 1978) (Hidalgo, 2007;Suh et al, 2010;. Khana et al, 2013) Equations 3 and 4 (Higuera, 2008;Rodriguez et al, 2012.…”

Section: Dormon and Mercalfmentioning

confidence: 99%