Effects of aging on the properties of asphalt at the nanoscale

Wang, P.E. Yuhong; Zhao, Kecheng; Glover, Charles J.; Chen, Ling; Wen, Yong; Chong, Dan; Hu, Chichun

doi:10.1016/j.conbuildmat.2015.01.059

Cited by 49 publications

(13 citation statements)

References 16 publications

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“…This method of comparison as well as the information obtained in the research done by [5] will be used in this investigation by considering the stress-strain relationship of cement concrete to develop relationships of the stress strain behaviour of asphalt concrete. Ciro, (2012) asserted in his research that the corresponding strain at peak stress greatly affects the ascending and descending branches of the stress-strain curves of concrete and results obtained showed a linear relationship between compressive strength and the corresponding strain under uniaxial compression [19]. A similar relationship was explored for Asphalt-Cement pavement using the uniaxial compression test method.…”

Section: Composite Pavementmentioning

confidence: 85%

“…A low-temperature cracking model was developed for asphalt concrete by using linear viscoelasticity. Yuhong-Wang, et al [19] also developed a viscoelastic constitutive model, which incorporated damage growth under cyclic loading linear viscoelastic models could be appropriate to model the low-temperature properties of asphalt concrete. But, at higher temperatures, the deformation of asphalt concrete is non-linear and contains both time dependent and time independent plastic components.…”

Section: Composite Pavementmentioning

confidence: 99%

“…(at h=150 mm for asphalt) and 1.25x10 19 (at h = 100 mm) for concrete. In thin surfacing, (h≤100 mm) relative fatigue life is highest for asphalt but lowest for concrete.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Influence of Compressive, Tensile and Fatigue Stresses on Asphalt and Concrete Cement Road Pavements in Nigeria - Using Linear Elastic Theory

Ogbezode

Adeleke

Adebayo

2018

JERR

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The high brittle nature of pavement structures have been carefully examined based on compressive, tensile strain and the harsh effects of fatigue cycle with reference to the base layer thicknesses and elastic strains during and after construction were examined. Subjection of asphalt and concrete-cement pavements to traffic loading and tyre pressure also influences the vertical stress and strain values for the asphalt and concrete materials under the same axial loading conditions. Using various fundamental equations under linear elastic conditions for the analysis of Asphalt and Concrete Cement structure revealed that both materials do respond differently to compressive and tensile stresses under similar mechanical conditions. Effect of compressive stresses and strains on concrete pavement is larger compare to asphalt pavement due to large thickness sub-base layer of its pavement structure. Both pavement layer thicknesses are independent of fatigue cycle under harsh traffic loading. Thus, concrete pavement has shown better fatigue resistance and less tensile strain values than asphalt pavements due to high pavement layer thickness regardless of the load distribution.

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Section: Composite Pavementmentioning

confidence: 85%

Section: Composite Pavementmentioning

confidence: 99%

See 1 more Smart Citation

Influence of Compressive, Tensile and Fatigue Stresses on Asphalt and Concrete Cement Road Pavements in Nigeria - Using Linear Elastic Theory

Ogbezode

Adeleke

Adebayo

2018

JERR

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“…Con la evaluación de estos ensayos se determina que los aglutinantes se comportan como un sólido, produciendo mayor dureza y deterioro con el envejecimiento. De igual manera, [19] propone el método de AFM como una posibilidad prometedora para estudiar las propiedades del rendimiento del asfalto a nivel microscópico, las cuales se ven afectadas también por factores ambientales como la radiación UV mencionada por [10].…”

Section: Envejecimiento a Largo Plazo (Lta)unclassified

Efecto del envejecimiento de mezclas asfálticas en el ciclo de vida del pavimento desde el aspecto técnico y ambiental. Revisión del estado de conocimiento

Guerrero

Chaves-Pabón

2020

Rev. vínculos

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Los pavimentos muestran cambios reológicos y químicos durante su ciclo de vida, principalmente a causa del envejecimiento a largo plazo (LTA), además de este fenómeno, pueden verse afectados por la influencia de los componentes de las mezclas asfálticas, presentando fallos como grietas, ahuellamiento, huecos, baches, entre otros; debido generalmente a variables externas (radiación solar, temperatura, humedad) e internas (materiales, aglomerantes, aditivos). Este artículo de revisión sistemática busca compilar investigaciones publicadas en los últimos 5 años, que tienen como objetivo analizar múltiples condiciones de envejecimiento y determinar las variables más estudiadas por parte de los autores. El propósito del documento es ser un punto de inicio como parte del estado del arte para futuros proyectos de tipo experimental, a partir de los hallazgos que se han sintetizado.

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“…More than 94% of the 2.7 million miles of paved roads in the United States are surfaced with asphalt [4][5][6]. There are approximately 400 million tons of asphalt mixture per year are combined for pavement construction in the US [7,8]. However, with the rapid and large-scale construction and maintenance of highway and airfield pavements, the availability of non-renewable, limited, and essential construction materials is declining [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Aggregate-Bitumen Interface Enhancement Mechanism of Utilization of Oil Shale Waste as Fine Aggregate in Open Grade Friction Course

Guo

Chen

et al. 2019

Coatings

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Oil shale waste (OSW), as fine aggregate in the mixture (particle size less than 4.75 mm), can effectively improve the overall properties of open grade friction course (OGFC), but the reinforcement mechanism is not clear. Thus, a comprehensive investigation of the reinforcement mechanism of OSW as fine aggregate is essential to provide better understanding for promoting its engineering application. In this paper, the reinforcement mechanism of OSW was explored through numerical calculations and laboratory tests from three aspects: macroscopic mechanical characteristics of mixture, micromechanics of asphalt mortar containing OSW filler, and adsorption characteristics of OSW. Numerical simulation results showed that the aggregate with a particle size greater than 4.75 mm in OGFC is the skeleton, which is the main loading bearing aggregate, and the skeleton bears more than 85% of external loads. The beam bending test and indirect tensile test results illustrated that the introduction of OSW improves the shear resistance and flexure-tension resistance properties of asphalt mortar, which is beneficial the overall properties of OGFC. From the Brunauer Emmett Tell test and Scanning Electron Microscope test, it was known that OSW has large specific surface area, dense pore structure, and various mesoporous shapes, which means a larger adsorption area and stronger adsorption with asphalt binder. Three self-developed tests containing asphalt adsorption capacity test, infiltrated asphalt saturation test and aggregate-bitumen interface observation test manifested that the existence of “claws”-pointed synapses at OSW-bitumen interface is the main reason for the significant improvement of properties of asphalt mortar containing OSW filler.

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Effects of aging on the properties of asphalt at the nanoscale

Cited by 49 publications

References 16 publications

Influence of Compressive, Tensile and Fatigue Stresses on Asphalt and Concrete Cement Road Pavements in Nigeria - Using Linear Elastic Theory

Influence of Compressive, Tensile and Fatigue Stresses on Asphalt and Concrete Cement Road Pavements in Nigeria - Using Linear Elastic Theory

Efecto del envejecimiento de mezclas asfálticas en el ciclo de vida del pavimento desde el aspecto técnico y ambiental. Revisión del estado de conocimiento

Aggregate-Bitumen Interface Enhancement Mechanism of Utilization of Oil Shale Waste as Fine Aggregate in Open Grade Friction Course

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