Effect of the Realistic Tire Contact Pressure on the Rutting Performance of Asphaltic Concrete Pavements

Kim, Sun-Myung; Darabi, Masoud K.; Little, Dallas N.; Al‐Rub, Rashid K. Abu

doi:10.1007/s12205-018-4846-1

Cited by 14 publications

(9 citation statements)

References 31 publications

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“…The interfacial strength between the asphalt and steel slag significantly affects the quality stability of steel slag-asphalt mixtures [6][7][8][9]. The phase structure, interaction, and adhesion properties of asphalt mixtures have been extensively explored using various methods such as kinetics, thermodynamics, and surface physical chemistry [10][11][12][13]. The adhesion of asphalt mixtures increases with an increase in asphalt grade.…”

Section: Introductionmentioning

confidence: 99%

The Interfacial Adhesion Performance and Mechanism of a Modified Asphalt–Steel Slag Aggregate

Liu

Zhu

et al. 2020

Materials

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The interfacial adhesion between asphalt and steel slag aggregate is a decisive factor in the formation of an asphalt-steel slag mixture and significantly affects the quality stability of steel slag-asphalt mixtures. In this study, the adhesion between an asphalt and steel slag aggregate, the interfacial microstructure, the adsorption and desorption characteristics, and chemical reactions were, respectively, explored by a PosiTestAT-A adhesion puller, a scanning electron microscope, a net adsorption test, an infrared spectrometer, and a dynamic shear rheometer. The mechanism of adhesion between the asphalt and steel slag aggregate was analyzed from the perspectives of physical adsorption and chemical reactions. The results showed that different factors had different effects on the adhesion of asphalt-steel slag aggregate interface. The freeze-thaw cycle and steel slag aggregate particle size had significant effects on interfacial adhesion, while the asphalt heating temperature, water bath time, and stirring time had relatively weak effects on interfacial adhesion. Compared to a limestone aggregate, the steel slag-asphalt mixture had greater adhesion and better adhesion performance because the pits and textures on the surface of the steel slag aggregate produced a skeleton-like effect that strengthened the phase strength of the asphalt-slag aggregate interface, thereby improving the adhesion and increasing the physical adsorption between the asphalt and steel slag aggregate. In addition, due to the N-H stretching vibrations of the amines and amides, as well as SiO-H stretching vibrations, a chemical reaction occurred between the asphalt and steel slag aggregate, thus improving the adhesion performance between the asphalt and steel slag. Based on the shape of the adsorption isotherm, it was determined that the adsorption type was multi-molecular layer adsorption, indicating that the adhesion between the asphalt and steel slag mainly involved physical adsorption. the asphalt and the aggregate are mainly physical interactions. Using an adhesion test, Podoll [14] proved that the peeling of asphalt occurs at the aggregate interface. Ling [15] carried out an adhesion test with asphalt and stone and analyzed the variations of adhesion with shear rate and temperature tests. Tarrer [16] indicated that when steel slag comes into contact with asphalt, the former has good adhesion characteristics since steel slag is an alkaline aggregate, and asphalt contains acidic groups. By exploring the asphalt-filler adhesion characteristics by infrared spectroscopy, Shin [17] found that asphalt around the filler carries polar functional groups. Xu [18] studied the combustion characteristics of asphalt by combining thermogravimetry with infrared spectroscopy.Other researchers have indicated that the angularity coefficient and fractal dimension of the surface texture of a steel slag aggregate have a linear positive correlation with the phase strength of the asphalt-aggregate interface. The greater the surface roughness of the steel slag a...

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Section: Introductionmentioning

confidence: 99%

The Interfacial Adhesion Performance and Mechanism of a Modified Asphalt–Steel Slag Aggregate

Liu

Zhu

et al. 2020

Materials

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“…Once robust mechanistic constitutive models are developed and calibrated, the numerical implementation (finite element modeling) is performed using the user-defined material (UMAT) tool to define material laws in commercial software such as ABAQUS. Finite element modeling (FEM) is conducted at the desired modeling space (2D or 3D), and realistic tire–pavement contact [ 77 ], traffic, and full pavement structure (asphalt, base, subbase, and subgrade), etc., can be constructed [ 67 , 76 , 78 , 79 , 80 ]. Although the PANDA approach is still at a research stage, it is evident that advantages as well as limitations can be listed.…”

Section: Permanent Deformation Damage Modelingmentioning

confidence: 99%

Advances in Permanent Deformation Modeling of Asphalt Concrete—A Review

2022

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Permanent deformation is one of the dominant asphalt concrete damages. Significant progress has been made to realistically predict the damage. In the last decade, the mechanistic approach has been the focus of research, and the fundamental theories of viscoelasticity, viscoplasticity, continuum mechanics, and micromechanics are applied to develop the material laws (constitutive equations). This paper reviews the advancement of permanent deformation models including analogical, microstructural, and continuum-based methods. Pavement analysis using the nonlinear damage approach (PANDA) is the most comprehensive and theoretically sound approach that is available in the literature. The model coupled different damages and other phenomena (such as cracking, moisture, and phenomena such as healing, aging, etc.). The anisotropic microstructure approach can be incorporated into the PANDA approach for a more realistic prediction. Moreover, the interaction of fatigue and permanent deformation is the gap that is lacking in the literature. The mechanistic approaches have the capacity to couple these damages for unified asphalt concrete damage prediction.

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“…O objetivo do presente estudo, visando uma melhor otimização do frete e distribuição da carga sobre o pavimento, foi realizar um simulado da adição de mais um pneu no eixo padrão adotando uma simulação de carga e utilizando a teoria dos elementos finitos e equações de fadiga preconizadas pelo DER/SP e DNIT, para prever os resultados no topo do pavimento, em sua vida útil e possibilidades de incremento de carga. Kim et al (2018) defendem que o efeito de diferentes configurações de tensões normais de contato sobre o desempenho de sulcos de sobreposições de concreto asfáltico camadas de BGS macias e rígidas no modelo de Elementos Finitos, baseado em uma estrutura real do pavimento gerado, e a camada de concreto asfáltico foi simulada como um sistema de material viscoelástico e viscoplástico. As seguintes inferências podem ser extraídas dessas simulações.…”

Section: Introductionunclassified

Aplicação Econômica da Rodagem Tripla em Veículos de Carga: Estudo de Caso

Filho

Nääs²

2021

RFSA

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Artigo recebido em 14/06/2021. Última versão recebida em 27/06/2021. Aprovado em 28/06/2021. Avaliado pelo sistema Triple Review: a) Desk Review pelo Editor-Chefe; e b) Double Blind Review (avaliação cega por dois avaliadores da área). Revisão: Gramatical, Normativa e de Formatação P. Boulos Filho, I. A. Nääs 124 Rev. FSA, Teresina, v. 18, n. 7, art. 8, p. 124-136, jul. 2021 www4.fsanet.com.br/revista RESUMOEste trabalho apresenta um estudo de caso para o desenvolvimento da análise comparativa que avalia um trajeto de transporte de soja sob um aspecto diferenciado. Foi simulada a adição de um pneu extra ao eixo duplo padrão preconizado pelas normas brasileiras e foi feito um estudo comparativo relacionando carga e custo do frete em um trecho préidentificado de uma rodovia passando pelo estado do Mato Grosso e Mato Grosso do Sul, indo da cidade de Lucas do Rio Verde até a estação ferroviária de Rondonópolis, rota entre o produtor e a ferrovia que direciona a carga ao porto. Através dos resultados, foi possível entender que este tipo de eixo com rodagem tripla se torna interessante no aspecto financeiro do custo do transporte permitindo, em um mesmo frete, uma quantidade de carga maior gerando o mesmo dano ao pavimento, sem prejudicar a vida útil do pavimento, inicialmente projetado para durar dez anos.

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Effect of the Realistic Tire Contact Pressure on the Rutting Performance of Asphaltic Concrete Pavements

Cited by 14 publications

References 31 publications

The Interfacial Adhesion Performance and Mechanism of a Modified Asphalt–Steel Slag Aggregate

The Interfacial Adhesion Performance and Mechanism of a Modified Asphalt–Steel Slag Aggregate

Advances in Permanent Deformation Modeling of Asphalt Concrete—A Review

Aplicação Econômica da Rodagem Tripla em Veículos de Carga: Estudo de Caso

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