Cracking resistance evaluation of asphalt binders subjected to different laboratory and field aging conditions

Osmari, Patrícia Hennig; Leite, Leni Figueiredo Mathias; Aragão, Francisco Thiago Sacramento; Cravo, Margareth Coutinho; Dantas, Luciana Nogueira; Macedo, Thaísa Ferreira

doi:10.1080/14680629.2019.1618530

Cited by 29 publications

(3 citation statements)

References 9 publications

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“…where G*(ω) is the complex shear modulus at frequency ω (rad/s), δ is the phase angle (°), and GR is the Glover-Rowe Parameter, which is 180 and 600 kPa in this study (Rowe, 2016;Osmari et al, 2019). These two failure curves formed the damage zone.…”

Section: Determination Of Glover-rowe Parameter and R-valuementioning

confidence: 94%

Effect of Bio-oil on Rheology and Chemistry of Organosolv Lignin–Modified Bitumen

Zhang

Liu

Ren

et al. 2022

J. Mater. Civ. Eng.

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Lignin, one of the most abundant natural polymers, has been extensively studied as an additive in bituminous binders. Even though the lignin improves the overall resistance against oxidative aging of bitumen, it could lead to high thermal cracking sensitivity. In this study, a bio-oil (i.e., rapeseed oil) is implemented in lignin modified bitumen to ameliorate characteristics, such as the resistance to fatigue and cracking. The long-term aging of bitumens formulated by different proportions of bio-oil was simulated by the pressure aging vessel method. Fourier Transform Infrared Spectroscopic (FTIR) results demonstrated lignin has a remarkable anti-aging effect, but adding bio-oil will slightly deteriorate the anti-aging effect. The Brookfield rotational viscometer showed that the addition of bio-oil was able to reduce the binder's viscosity observably, thereby improving the workability of bitumen. The frequency sweep tests revealed that lignin increased the stiffness and improved the thermal stability. Also, the multiple stress creep recovery tests corroborated that lignin significantly enhanced the rutting resistance of binders. The fatigue and thermal cracking properties of lignin modified binder could be strengthened by increasing bio-oil content which is confirmed from both linear amplitude sweep, Glover-Rowe parameter, and Bending Beam Rheometer tests. Moreover, the relaxation test results demonstrated that bio-oil decreased the residual stress ratio and relaxation time dramatically. Overall, this study has shown preliminary conclusions on the incorporating of bio-oil to enhance the medium-low temperature properties of lignin modified binders. In the meantime, bio-oil did not interfere with the improvement influence of lignin on the neat bitumen regarding high-temperature performance.

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Section: Determination Of Glover-rowe Parameter and R-valuementioning

confidence: 94%

Effect of Bio-oil on Rheology and Chemistry of Organosolv Lignin–Modified Bitumen

Zhang

Liu

Ren

et al. 2022

J. Mater. Civ. Eng.

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“…Carbonyl peaks cover a wide wavenumber range because of different functionalities present on the carbonyl carbon. Figure 6 shows that only the carbonyl peak at 1,696 cm 21 (1,670-1,725 cm 21 ) increased in intensity from the bottom layer to the top layer of the field core. The C=O peak at 1,727 cm 21 did not show a very clear trend.…”

Section: Effect Of Binder Aging On Pavement Depth Profilementioning

confidence: 99%

“…The extent of aging depends on climatic exposure, asphalt concrete (AC) field density, depth, and binder chemistry ( 12 – 22 ). Studies on quantifying the effects of field aging are limited and region-specific ( 1 , 2 , 17–19 ).…”

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confidence: 99%

Impacts of Field and Laboratory Long-Term Aging on Asphalt Binders

Singhvi

Mainieri

Özer

et al. 2022

Transportation Research Record: Journal of the Transportation R

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Asphalt binder aging accelerates cracking of flexible pavement. Quantifying the extent of binder aging allows the formulation and selection of appropriate binders for flexible pavement applications. Asphalt binder aging depends on climatic exposure, asphalt concrete field-surface density, and binder chemistry. The aim of this work was to select a laboratory-aging protocol to represent realistic field aging in Illinois. Binders were extracted from field cores aged from eight to 31 years. Extracted binders were tested for rheology and chemical characteristics. Small- and large-strain rheological parameters were determined. In addition, chemical functional groups and molecular weight distribution of extracted binders were evaluated. Effects of aging across pavement depth were also investigated. Double pressure-aging vessel (PAV) was identified as a suitable laboratory long-term aging protocol to represent eight to 12 years of aging for flexible pavements in Illinois. Thresholds were proposed for selected small- and large-strain rheological parameters representing realistic field aging. These thresholds may be used for binder selection and procurement to ensure the binder’s long-term performance. Furthermore, chemical analysis on extracted binders showed that only specific carbonyl functional groups are affected by field aging.

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