RILEM TC 252-CMB report: rheological modeling of asphalt binder under different short and long-term aging temperatures

Wang, Di; Falchetto, Augusto Cannone; Poulikakos, Lily D.; Hofko, Bernhard; Porot, Laurent

doi:10.1617/s11527-019-1371-8

Cited by 27 publications

(16 citation statements)

References 19 publications

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“…This is because the available DSR device provides a mixed controlled mode which allows more reliable results to be obtained in straincontrolled mode at high temperatures, while, the stresscontrolled mode is more effective at intermediate and low temperatures. This experimental procedure has already been successfully validated in several previous studies (18,19,31).…”

Section: Methodsmentioning

confidence: 82%

“…The detailed procedure can be found in a draft standard ( 12 ). More recently, several studies ( 17 – 21 ) have succeeded in implementing this testing method in the measurement of low temperature properties of asphalt binders, however, this method only reduces both plate diameter and gap compared with the 8 mm parallel-plate with a 2 mm gap geometry. This is in contrast with the recommendation of Schröter et al ( 16 ) that, together with a smaller plate diameter, larger measurement gap should be used to limit the instrument compliance error, since a reduced measurement gap may increase the error due to the sample size associated with the compliant rheometer system ( 16 ).…”

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confidence: 99%

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An Alternative Experimental Method for Measuring the Low Temperature Rheological Properties of Asphalt Binder by Using 4mm Parallel Plates on Dynamic Shear Rheometer

Wang

Falchetto

Alisov

et al. 2019

Transportation Research Record: Journal of the Transportation R

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The possibility of using the dynamic shear rheometer (DSR) with 4 mm parallel plates and 3 mm gap is investigated as an alternative experimental method to measure the rheological properties of asphalt binders at low temperature. A special butterfly silicone mold was prepared for this purpose and the corresponding testing procedure was also developed. Five different asphalt binders, which are part of two active research projects, were selected. Frequency and temperature sweep tests were conducted using the DSR with three plate–plate geometries: 4 mm, 8 mm, and 25 mm. The new testing procedure was used to measure at low temperatures. The method recently proposed by the Western Research Institute and based on DSR tests with 4 mm parallel plates and 1.75 mm gap was also used for comparison purposes. Black diagrams and Cole-Cole plots were then used to evaluate the experimental data. Complex modulus and phase angle master curves were generated, and the rheological parameters compared. Finally, the two spring, two parabolic elements, one dashpot (2S2P1D) model was selected to investigate the rheological properties of the binders. Results indicate that the proposed procedure is a simple and reliable experimental method and represents an alternative experimental option to measure and analyze the rheological properties of asphalt binders at low temperature.

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Section: Methodsmentioning

confidence: 82%

mentioning

confidence: 99%

An Alternative Experimental Method for Measuring the Low Temperature Rheological Properties of Asphalt Binder by Using 4mm Parallel Plates on Dynamic Shear Rheometer

Wang

Falchetto

Alisov

et al. 2019

Transportation Research Record: Journal of the Transportation R

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“…With the extremely increasing loading and aggravation of axis load in the pavement industry, damages such as rutting, cracking etc., are happening more frequently on highways and urban roads [1][2][3][4]. Asphalt modification technology has been considered a practical approach to resolve these concerns by enhancing the durability of asphalt pavements.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Storage Stability of Different Polymer Modified Asphalt Binders through Nano-Montmorillonite Modification

Ren

Zhu

Wu³

et al. 2020

Nanomaterials

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The storage stability concern, caused by phase separation for the density difference between polymers and asphalt fractions, has limited the widespread application of polymer modified asphalt (PMA). Therefore, this study aims to improve the storage concern of PMA by incorporating nano-montmorillonite. To this end, different nano-montmorillonites were incorporated to three PMAs modified with three typical asphalt modifiers, i.e., crumb rubber (CRM), styrene–butadiene-rubber (SBR) and styrene–butadiene-styrene (SBS). A series of laboratory tests were performed to evaluate the storage stability and rheological properties of PMA binders with nano-montmorillonite. As a consequence, the incorporation of nano-montmorillonite exhibited a remarkable effect on enhancing the storage stability of the CRM modified binder, but limited positive effects for the SBR and SBS modified binders. The layered nano-montmorillonite transformed to intercalated or exfoliated structures after interaction with asphalt fractions, providing superior storage stability. Among selected nano-montmorillonites, the pure montmorillonite with Hydroxyl organic ammonium performed the best on enhancing storage stability of PMA. This paper suggests that nano-montmorillonite is a promising modifier to alleviate the storage stability concern for asphalt with polymer modifiers.

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“…Typically, oscillation measurements are used to evaluate rheological binder properties based on shear modulus G* and phase angle δ. As a consequence of asphalt binder ageing (both oxidative ageing and UV ageing), the shear modulus increases and the phase angle decreases (Feng et al, 2013;Leiva-Villacorta et al, 2014;Lu & Isacsson, 2002;Schrader et al, 2020;Tarsi et al, 2018;Wang et al, 2019). Thus, the material becomes stiffer and more elastic.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the material becomes stiffer and more elastic. However, this change in material properties is highly affected by the selected ageing conditions (Wang et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Rheological, spectroscopic and microscopic assessment of asphalt binder ageing

Koyun

Büchner

Wistuba

et al. 2020

Road Materials and Pavement Design

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Asphalt binder ageing leads to significant changes in mechanical and physicochemical properties and often to premature cracking in asphalt pavements. A polymer-modified asphalt binder is repeatedly aged through laboratory techniques, i.e. rolling thin film oven test and pressure ageing vessel. The resulting properties of the aged binder are analysed using dynamic shear rheometer, Fourier transform infrared spectroscopy, atomic force microscopy and cryo-environmental scanning electron microscopy. Rheological, spectroscopic and macroscopic properties change progressively with the level of laboratory ageing. Surprisingly, this change shows approximately a linear trend. The first ageing step has the highest impact on the property change, whereas all the following ageing steps result in similar but reduced impact. Moreover, there is a strong interdependency between different mechanical and physicochemical properties. Hence, novel insights into the mechanics of asphalt binder ageing and into the search for ageing laws for asphalt binders.

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RILEM TC 252-CMB report: rheological modeling of asphalt binder under different short and long-term aging temperatures

Cited by 27 publications

References 19 publications

An Alternative Experimental Method for Measuring the Low Temperature Rheological Properties of Asphalt Binder by Using 4mm Parallel Plates on Dynamic Shear Rheometer

An Alternative Experimental Method for Measuring the Low Temperature Rheological Properties of Asphalt Binder by Using 4mm Parallel Plates on Dynamic Shear Rheometer

Enhanced Storage Stability of Different Polymer Modified Asphalt Binders through Nano-Montmorillonite Modification

Rheological, spectroscopic and microscopic assessment of asphalt binder ageing

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