2018
DOI: 10.1080/14680629.2018.1465451
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Optimising the effect of natural filler on asphalt-aggregate interfaces based on surface free energy measurements

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Cited by 24 publications
(9 citation statements)
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“…Due to the unsaturated force field on the surface of the aggregate, when the asphalt diffuses and wets the surface of the aggregate, the aggregate attracts the asphalt molecules so that the overall surface energy of the asphaltaggregate system is reduced hence reaching a stable state. 30 It is precisely because of this decrease in energy that the asphalt adheres to the aggregate surface and the degree of energy reduction can be used to characterize the bond strength between asphalt and aggregates. The more the surface energy decreases, the stronger the adhesion.…”
Section: The Adhesion Work Of Fiber and Sbs Modified Asphaltmentioning
confidence: 99%
“…Due to the unsaturated force field on the surface of the aggregate, when the asphalt diffuses and wets the surface of the aggregate, the aggregate attracts the asphalt molecules so that the overall surface energy of the asphaltaggregate system is reduced hence reaching a stable state. 30 It is precisely because of this decrease in energy that the asphalt adheres to the aggregate surface and the degree of energy reduction can be used to characterize the bond strength between asphalt and aggregates. The more the surface energy decreases, the stronger the adhesion.…”
Section: The Adhesion Work Of Fiber and Sbs Modified Asphaltmentioning
confidence: 99%
“…The stripping phenomenon is a thermodynamically favorable condition as, in the presence of water, the adhesion of aggregate and bitumen is worse than that of aggregate and water [60,61,62]. In the absence of fillers, using additives may improve the adhesion between aggregates and bitumen [63].…”
Section: Porous Asphalt Mixtures Designmentioning
confidence: 99%
“…2). Estas respuestas son coincidentes con las reportadas en literatura reciente para asfaltos de penetración y asfaltos modificados con polímeros [14] y podrían permitir la optimización del diseño de mezclas asfálticas con CPP desde el punto de vista del contenido de llenante mineral a especificar en la granulometría de diseño.…”
Section: Calidad De Adhesiónunclassified
“…3 se resumen los valores óptimos de trabajo de adhesión en seco y húmedo para todas las combinaciones de materiales analizadas, así como las concentraciones volumétricas (VC) con las que se obtuvo la respuesta óptima de las interfases AR-agregado. Dichas concentraciones son específicas (i.e., variando en función del AR y el llenante mineral empleado, pero de valor común para los diferentes agregados) y para los materiales evaluados fluctúan entre 0.10 y 0.25, rango que coincide de cerca con el reportado en investigación previa para asfaltos de refinación (i.e., asfaltos de penetración) y asfaltos modificados con polímeros [14]. No obstante, las interfases generadas con los AR no alcanzan los valores de trabajo de adhesión en seco desarrollados por el asfalto de control (ver Figs.…”
Section: Calidad De Adhesiónunclassified
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