Effect of surface tension on the measurement of surface energy components of asphalt binders using the Wilhelmy Plate Method

Luo, Rong; Zhang, Derun; Zeng, Zhe; Lytton, Robert L.

doi:10.1016/j.conbuildmat.2015.08.125

Cited by 47 publications

(9 citation statements)

References 2 publications

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“…Especially the small acid and base parts have sometimes very large standard deviations. In the paper by Luo et al [42], the obtained levels are lower as compared to the other references because these authors added a correction to the Wilhelmy plate method. This correction takes into account the slight curvature of the liquid surface next to the plate.…”

Section: Sfe Measurement Results On Bituminous Bindersmentioning

confidence: 84%

“…Method to determine surface energies of bituminous binders [18,20,21,23,24,26,[28][29][30][34][35][36][37][38][39][40][41][42][43][44][45][46][47] Wilhelmy plate tests in probe liquids (VCG), ambient [20,39,[48][49][50][51] Sessile drops of probe liquids on bitumen surface (VCG) ambient [18,20,35] Inverse gas chromatography (CVS) [46,52] Pending drop (100-140 • C) combined with sessile drop on PTFE (OW) [53] Sessile drops on a microtome-cut bitumen surface 20 • C (OW) [39,54] Sessile drops of probe liquids on bitumen surface (OW) ambient [55] Dynamic sessile drop measurements of probe liquids on a bitumen surface (VCG) [56] Pending drops of bitumen (100-130 • C) (γ total) [53] Pending drops at equiviscous temperatures (γ total) [57] Pending drops of bitumen at a fixed G* 209 Pa (γ total) [39] Wilhelmy plate tests in probe liquids (OW) ambient [20] Atomic force microscopy (dispersive component)…”

Section: Reference(s)mentioning

confidence: 99%

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Fundamental Approaches to Predict Moisture Damage in Asphalt Mixtures: State-of-the-Art Review

2020

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Moisture susceptibility is still one of the primary causes of distress in flexible pavements, reducing the pavements’ durability. A very large number of tests are available to evaluate the susceptibility of a binder aggregate combination. Tests can be conducted on the asphalt mixture, either in a loose or compacted form, or on the individual components of an asphalt pavement. Apart from various mechanisms and models, fundamental concepts have been proposed to calculate the thermodynamic tendency of a binder aggregate combination to adhere and/or debond under wet conditions. The aim of this review is to summarize literature findings and conclusions, regarding these concepts as carried out in the CEDR project FunDBits. The applied test methods, the obtained results, and the validation or predictability of these fundamental approaches are discussed.

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Section: Sfe Measurement Results On Bituminous Bindersmentioning

confidence: 84%

Section: Reference(s)mentioning

confidence: 99%

Fundamental Approaches to Predict Moisture Damage in Asphalt Mixtures: State-of-the-Art Review

2020

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“…A basic test for surface tension is to measure the force on the solid in contact with the liquid level during the withdrawal process (such as Wilhelmy disk [31] and ring pulling [32] ). The capillary force is related to the gas-liquid surface tension, wetting perimeter length, and contact angle, that is, F Ca = Pσcosθ.…”

Section: Surface Tension Measurementmentioning

confidence: 99%

The normal force evolution of the substrate during the withdrawal process

Zhang

Yin

Pan

et al. 2022

Polymer Engineering & Sci

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The evolution of normal force on the smooth plate immersed in Newtonian and yield stress fluids was investigated during the dip coating. The influences of withdrawal velocity, liquid rheological property, and plate roughness were elaborated. For all fluids, the variation of force versus the withdrawing height was divided into four stages. Importantly, the control forces for coating in each stage were determined, which are in turn viscous force-capillary, viscous forcegravity, capillary-viscous force, and gravity. The critical value of normal force controlled from capillary to viscous effect during drainage was adopted to calculate the surface tension. The possibility of measuring the surface tension was verified under the negligible interference of viscous effect and film instability through a detailed analysis on the evolution of force in a series of tests. Accordingly, the applicable conditions with the low withdrawal speed, high viscosity, and rough surface were finally achieved. This work can provide a theoretical basis for the film-formation mechanism and surface tension measurement in dip coating.

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“…The result of this reaction is a specific form of salt that can be absorbed by the interface region and improve adhesion properties [ 24 , 25 ]. This mechanism affects the bitumen-filler affinity in terms of controlling the contact angle, surface tension, adhesion work, and cohesion between bitumen and fillers, which could affect the crack development mechanism (adhesive failure at the filler-bitumen interface region or cohesive failure within the bitumen) [ 26 ]. In this context, incorporating fillers could either manage the crack failures within the mastic matrix or, in some cases, make CBE mastic very stiff and sensitive to fatigue cracking [ 27 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

A Study on the Influence of the Chemical Nature of Fillers on Rheological and Fatigue Behavior of Bitumen Emulsion Mastic

Al-Mohammedawi

Mollenhauer

2020

Materials

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Cold Bitumen Emulsion (CBE) mixture technologies have been recently developed to lower pavement construction temperatures to reduce environmental costs and control gas emissions. Due to its poor early mechanical strength, active fillers (i.e., cement) have been used to obtain high early stiffness in order to have the potential for timely construction of the next layer. There is, however, a lack of understanding about the impact of active fillers on the viscoelastic behavior and fatigue damage resistance of CBE mastics. This study, therefore, aims to identify the influence of active fillers on the rheological properties and the resulting fatigue behavior of CBE mastic, supported by chemical analysis for the filler-bitumen emulsion. For this aim, bitumen emulsion was mixed separately with seven fillers/blended fillers to prepare the CBE mastics. Various experiments, including continuous pH monitoring tests (chemical reactivity of filler-bitumen emulsion), Strain Sweep (SS) tests, Temperature-Frequency Sweep (TFS) tests, Time Sweep (TS) tests, and Linear Amplitude Sweep (LAS) tests were conducted on the CBE binder and the prepared mastics. Results show that the rheological performance and the fatigue damage resistance depend not only on the filler inclusions but also on filler type and chemistry. On this basis, the rise in complex shear modulus and the decrease in the viscous component is associated with a significant enhancement in fatigue performance for specific fillers.

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Effect of surface tension on the measurement of surface energy components of asphalt binders using the Wilhelmy Plate Method

Cited by 47 publications

References 2 publications

Fundamental Approaches to Predict Moisture Damage in Asphalt Mixtures: State-of-the-Art Review

Fundamental Approaches to Predict Moisture Damage in Asphalt Mixtures: State-of-the-Art Review

The normal force evolution of the substrate during the withdrawal process

A Study on the Influence of the Chemical Nature of Fillers on Rheological and Fatigue Behavior of Bitumen Emulsion Mastic

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