A review of state of the art on stripping phenomenon in asphalt concrete

Mehrara, Amir; Khodaii, Ali

doi:10.1016/j.conbuildmat.2012.08.033

Cited by 145 publications

(36 citation statements)

References 29 publications

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“…It is generally believed that the single-peak curves (SPCs) can be obtained by compression test [14,21], direct shear test [5,19], and tensile test [22,23]. Something is just the other way around, the experiment reported here has obtained the double-peak curves (DPCs), which have no significant background research in the literature.…”

Section: Theoretical Backgroundmentioning

confidence: 85%

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Failure mechanism analysis of asphalt–aggregate systems subjected to direct shear loading

et al. 2017

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In order to investigate the mechanical behavior of asphalt-aggregate systems subjected to direct shear loading and reveal the shear failure mechanism, four groups of direct shear tests were conducted on composite specimens under different experimental conditions with a self-manufactured direct shear test apparatus at 25°C. Comparative studies were conducted to evaluate the effects of stone surface treatment, asphalt film thickness and loading rate on the shear mechanical behavior of asphaltaggregate specimens. Results showed that two kinds of the complete stress-displacement curves, including the general single-peak curve and the first-known double-peak curve, were clearly observed for each condition. In addition, the internal failure mechanisms were analyzed based on qualitative and quantitative methods. It can be concluded that the potential failure modes of the direct shear test include adhesive failure at the asphalt-aggregate interface and cohesive failure within the asphalt film. The research results enhance understanding of the shear mechanical behavior and failure mechanism of asphalt mixture, and also provide a reference for the interfacial failure.

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Section: Theoretical Backgroundmentioning

confidence: 85%

“…The SPCs shown in Figs. 2, 3, 4, 5a can be seen in some researches [5,14,19,[21][22][23]: the shear stress increases initially and then decreases with increasing shear displacement. The ascending parts of the curves show an approximately linear shape before approaching to a peak value.…”

Section: Characteristics Of the Shear Stressdisplacement Curvesmentioning

confidence: 99%

Failure mechanism analysis of asphalt–aggregate systems subjected to direct shear loading

et al. 2017

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“…In addition to them, moisture sensitivity of an asphalt mixture, generally called stripping potential, is among the most important distresses of asphaltic pavements [13]. Thus, the penetration of moisture through asphalt mixtures increases the extent and severity of the previously commented common distresses.…”

Section: Introductionmentioning

confidence: 99%

“…However, these tests are not always -4 -reliable and do not provide any information regarding the causes for good or poor performance of a particular mixture [15]. To that end, the surface energy theory can explain adhesion and cohesion bonds according to both aggregate and binders physico-chemical properties [13,16,17]. Based on surface energy measurements, Cheng et al [18] pointed out that the affinity of the aggregates for water is far greater than that for bitumen.…”

Section: Introductionmentioning

confidence: 99%

Chemically modified bitumens with enhanced rheology and adhesion properties to siliceous aggregates

Cuadri¹,

Partal²,

Ahmad

et al. 2015

Construction and Building Materials

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Moisture damage is one of the major premature failures that worsens the performance and shortens service life of pavements. This research assesses the effect that two chemical modifiers (thiourea and an isocyanate-functionalized castor oil prepolymer) exerts on the bitumen rheology and on the resistance to potential moisture damage of asphalt mixtures based on siliceous aggregates. Both thiourea and the isocyanate-based prepolymer improve the viscous and viscoelastic behaviours of bitumen at high inservice temperatures, particularly the isocyanate-based reactive modifier. Likewise, the visual inspection of the degree of bitumen coating on loose mixtures exposed to water in a "rolling bottle" test, and further surface free energy measurements, showed that the bitumen modification by the isocyanate-based prepolymer seems to reduce moistureinduced damage on siliceous aggregates. Conversely, thiourea-based modification increases sensitivity of the bitumen-aggregate mixture to water. Different adhesion mechanisms, based on chemical or physical bonds with the aggregate surface, have been proposed for each modifier.

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“…The adhesion failure manifest when a detachment of the binder film coating the aggregates is produced (stripping), inducing a greater vulnerability of the pavement versus traffic solicitations and thermal cracking (Kim et al, 2004). The failure of the aggregate -binder links, may lead to serious damage as fatigue cracking, surface peeling and rutting (Mehrara & Khodaii, 2013) attacking the durability of the pavement.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the durability of asphalt mixtures depending on the physical properties of aggregates

Vidal

Calabi-Floody

Sánchez-Alonso

2017

rdlc

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This study aims to assess the durability of asphalt mixtures through their performance versus damage by aging and water sensibility, depending on the physical properties of aggregates. Twelve types of asphalt mixtures were analyzed, using 3 types of aggregates (different shape and mineralogy), and 4 types of asphalt binders (2 conventional, 1 high modulus and 1 modified). The characterization of the aggregates is carried out following the protocol proposed by Zingg and the particle index (PI) according to ASTM-D3398. Both parameters have been correlated with the performance of the aggregate in the mixture. The performance of the mixtures is analyzed by the parameters of FENIX test, such as peak tensile load, stiffness rate and deformation capacity in 3 aging conditions and under wet conditions. The water sensitivity was also evaluated according to the UNE-EN12697-12. The results show that the physical characterization of the aggregates through Zingg method is not enough to predict the behavior of the mixtures studied because it considers only the coarse fraction. In turn, the results show that the angularity and surface texture of the fine fraction aggregates, analyzed through the PI parameter, has a significant effect on the performance versus moisture damage and aging of the asphalt mixtures tested.Key words: Aggregates, physical properties, durability, asphalt mixtures, aging, moisture. ResumenEste estudio propone evaluar la durabilidad de mezclas asfálticas respecto de su desempeño frente al daño por envejecimiento y susceptibilidad al agua, en función de las propiedades físicas de los áridos. Se evaluaron 12 mezclas asfálticas, empleando 3 tipos de áridos (diferente forma y mineralogía), y 4 tipos de asfaltos (2 convencionales, 1 de alto módulo y 1 modificado con polímeros). La caracterización de los áridos se realiza siguiendo el protocolo propuesto por Zingg y de acuerdo al Índice de Partícula (PI) según el protocolo ASTM-D3398, parámetros que han sido correlacionados con el desempeño del árido en la mezcla. La evaluación del desempeño de las mezclas se hace a través del ensayo FENIX analizando parámetros como la carga máxima a tracción, el índice de rigidez y la capacidad de deformación; en 3 condiciones de envejecimiento y un tratamiento de inmersión. Se analizó también la sensibilidad al agua según la norma UNE-EN12697-12. Los resultados muestran que la caracterización física de los áridos por el método Zingg no es suficiente para predecir el comportamiento de las mezclas estudiadas, ya que considera sólo la fracción gruesa. A su vez, este estudio se observó que la angularidad y textura superficial de la fracción fina de los áridos, analizada a través del parámetro PI, tiene un efecto importante en el desempeño frente al daño por humedad y al envejecimiento de las mezclas evaluadas.

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A review of state of the art on stripping phenomenon in asphalt concrete

Cited by 145 publications

References 29 publications

Failure mechanism analysis of asphalt–aggregate systems subjected to direct shear loading

Failure mechanism analysis of asphalt–aggregate systems subjected to direct shear loading

Chemically modified bitumens with enhanced rheology and adhesion properties to siliceous aggregates

Evaluation of the durability of asphalt mixtures depending on the physical properties of aggregates

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