Identifying Indicators for Fatigue Cracking in Hot-Mix Asphalt Pavements Using Viscoelastic Continuum Damage Principles

Abstract

A critical distress in asphalt concrete pavements is fatigue cracking, which results in decreased ride quality and fuel economy, and provides an avenue for water intrusion, which causes a pavement system to deteriorate rapidly. Given the poor state of the infrastructure network, changes are needed in the current mixture design process to promote innovation and alternative approaches to production. This study addressed this need by pursuing the following objectives: ( a) relate mixture stiffness, fatigue, and pavement system characteristics for performance-based mixture design; ( b) identify a simplified viscoelastic continuum damage (S-VECD) output parameter that most clearly distinguishes between poor and satisfactory performance when combined with dynamic modulus information; and ( c) evaluate the impact of recycled materials on performance indicators for fatigue cracking. The results show that a pavement structure selection process related to the S-VECD failure criterion produces better performance predictions than does a stiffness-based approach. Promising correlations with performance exist for the pseudostiffness at failure and storage modulus for an Interstate pavement structure, phase angle for a state highway surface and base course, and model term alpha for the same state highway base course.

Permanent Deformation Characteristics of Flexible Pavement Under Palm Oil Freight Truck Loading

“…The research has also demonstrated that the stiffness of non-asphalt layers and the layer thickness of asphalt pavements affect how they respond to fatigue [22]- [25]. As a result, a thorough performance evaluation of fatigue behaviors takes into account the structural reaction of the entire pavement system.…”

“…As a result, a thorough performance evaluation of fatigue behaviors takes into account the structural reaction of the entire pavement system. To identify system features, linear elastic structural response models have been created, such as the WinJULEA platform utilized in the Mechanistic-Empirical Pavement Design Guide (MEPDG) [25]. According to Eslaminia et al [26], current research is going toward linear viscoelastic analysis of multilayer systems since it is thought to be more reflective of pavement response to stress and strain.…”

Laboratory Performance Evaluation of HMA Modified with Various Types and Contents of Polymer

“…e viscoplastic Advances in Civil Engineering properties related to the effect of material behaviors were conducted using the constant crosshead test. e background of the theory and experiment for curves are referred in various studies [1,[6][7][8][9][10][11][12][13][14]. e points in this figure indicate the viscoplastic strain rates at the maximum stress in the test applying the strain rate and temperature.…”

Rate‐dependent fracture modeling of bituminous media using nonlinear viscoelastic cohesive zone with Gaussian damage function

“…Different approaches based on newly developed experimental protocols, analytical methods, and/or computational simulations have been employed to advance the prediction of fracture in bituminous materials. Continuum damage modeling is a well‐known approach for evaluating fracture characteristics of bituminous mixtures (Al‐Rub et al., 2012; Daniel & Kim, 2002; Y. R. Kim et al., 2008; Kutay & Lanotte, 2018; Lee et al., 2000; Mensching et al., 2016; Rushing et al., 2017; Underwood et al., 2009; You et al., 2017). In these studies, the researchers have regarded bituminous mixtures as homogenous media, and the evolution of damage due to fatigue cracks has been quantified implicitly based on the overall reduction of material integrity in a homogenized way.…”