Top-Down Cracking Prediction Tool for Hot Mix Asphalt Pavements

Baek, Cheolmin; Thirunavukkarasu, Senganal; Underwood, B. Shane; Guddati, Murthy N.; Kim, Y. Richard

doi:10.1007/978-94-007-4566-7_45

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…However, according to Rashadul Islam et al [ 7 ] and Rasol et al [ 8 ], existing pavements are no longer safe and comfortable, as they deteriorate over time, resulting in potholes, ruts, cracks, and other depressions. Similarly, Bevacqua et al [ 9 ] found that deterioration depends on water infiltration, weather conditions, repetitive traffic loading, stiffness gradients, construction problems, and the intrinsic and fracture properties of asphalt mixtures and pavement structures, which all clearly show the structural degradation of the pavement [ 4 , 7 , 8 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ]. This occurs because asphalt is a viscoelastic material and its behavior depends on temperature, i.e., the binder becomes viscous as temperature increases; otherwise, the asphalt turns brittle and susceptible to cracking [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Mode-I Fracture Toughness of Asphalt Mixtures with Symmetric Geometry Specimen at Intermediate Temperature

et al. 2022

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Mode I fracture (tensile type) is the common cracking mode of asphalt pavements, which is caused by thermal cyclic loading or traffic. Some studies allow the analysis of the fracture modes by means of standardized tests, some of which are limited, difficult, with little repeatability or do not generate an adequate tension state. In this paper, mode I fracture toughness of asphalt mixtures with symmetric geometry specimens at intermediate temperature is evaluated. Experimental results from direct tension test and simulations on asphalt mix specimens subjected to intermediate temperatures of 10, 20 and 30 °C, mode I load rates (0.5, 1 and 2 mm/min) and notches (2 and 3 cm) were compared to find the variables that reflect the operating conditions of the asphalt mix. Results showed that shear stresses are 8.12% lower in the simulations with respect to the tests, while the load–deformation curves show 30% and 35% variation, where the temperature of 20 °C, the notch of 2 cm and the loading speed of 1 mm/min are the conditions that best represent the stress state of the test; moreover, it manages to consider the elastic and viscous components of the material.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Mode-I Fracture Toughness of Asphalt Mixtures with Symmetric Geometry Specimen at Intermediate Temperature

et al. 2022

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ITSME: Multi-modal and Unobtrusive Behavioural User Authentication for Smartphones

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Technology and Practice of Passwords

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Analytic pavement modelling with a fragmented layer

Levenberg

Skar

2020

International Journal of Pavement Engineering

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Layered elastic theory is a familiar and commonly accepted framework for modeling and analysis of pavement systems. In actuality however, the suitability of the theory is challenged whenever the system includes a fragmented layer -which violates the inherent layer continuity assumption. This paper addressed the modeling challenge in these situations by introducing a fragmented layer into the accepted framework. A new formulation was proposed, based on the hypothesis that the thickness of the fragmented layer can be incorporated as part of its governing parameters. Doing so allowed for treating the fragmented layer as a new kind of interface. Subsequently, the work focused on formulation development and clear step-by-step presentation of new derived expressions applicable to the case of a stratified half-space containing a fragmented layer. Several synthetic cases were generated and interrogated to verify the correctness of underlying equations and to demonstrate capabilities. Based on this interrogation the proposed formulation is deemed rich of prospective utility, especially for modeling pavements surfaced with concrete paving blocks, pavement systems that contain cracked-and-seated (or rubblized) Portland cement concrete, and aged or rehabilitated pavement systems that contain fatigued (multi-fractured) asphalt concrete layers.

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Top-Down Cracking Prediction Tool for Hot Mix Asphalt Pavements

Cited by 3 publications

References 4 publications

Evaluation of Mode-I Fracture Toughness of Asphalt Mixtures with Symmetric Geometry Specimen at Intermediate Temperature

Evaluation of Mode-I Fracture Toughness of Asphalt Mixtures with Symmetric Geometry Specimen at Intermediate Temperature

ITSME: Multi-modal and Unobtrusive Behavioural User Authentication for Smartphones

Analytic pavement modelling with a fragmented layer

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