Short-term aging characterization of asphalt binders using gel permeation chromatography and selected Superpave binder tests

Lee, Soon‐Jae; Amirkhanian, Serji; Shatanawi, Khaldoun; Kim, Kwang W.

doi:10.1016/j.conbuildmat.2007.08.005

Cited by 103 publications

(27 citation statements)

References 9 publications

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“…is method ensures uniform aging of asphalt with no skin formation and correlates asphalt hardening reasonably well with that observed in hot-mixing process [110]. However, several researchers [111][112][113] identi ed a number of de ciencies (e.g., spilling out from RTFOT bottles) in RTFOT especially while testing modi ed asphalt binders. To overcome these limitations, researchers developed improved testing methods such as Modi ed Rolling in Film Oven Test ((RTFOTM) Bahia et al [96]), Modi ed German Rotating Flask [111,114] (MGRF), and Stirred Air Flow Test [115] (SAFT) to evaluate short-term aging of neat and modi ed asphalt binder.…”

Section: Binder Studiesmentioning

confidence: 86%

State of the Art Study on Aging of Asphalt Mixtures and Use of Antioxidant Additives

Şirin

Paul

Kassem

2018

Advances in Civil Engineering

144

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e detrimental effects of hardening in asphalt pavements were first recognized by pioneering pavement engineers in the 1900s and have been studied extensively during the last 70 years. is hardening process, referred to as asphalt aging, is generally defined as change in the rheological properties of asphalt binders/mixtures due to changes in chemical composition during construction and its service life period. Aging causes the asphalt material to stiffen and embrittle, which affects the durability and leads to a high potential for cracking. is paper presents the state of the art on asphalt and asphalt mixture aging and use of antioxidant additives to retard the aging. A picture of complex molecular structure of asphalt and its changes due to atmospheric condition and various protocols used to simulate aging in laboratory environment are also discussed. Emphasis is given on recent studies on simulation of aging of asphalt mixtures as there has been limited research on mixtures compared to the asphalt binder. Finally, this paper presents the application of antiaging techniques and its mechanism, use of various types of antioxidant additives to retard aging of asphalt and, hence, improve the performance of asphalt pavements.

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Section: Binder Studiesmentioning

confidence: 86%

State of the Art Study on Aging of Asphalt Mixtures and Use of Antioxidant Additives

Şirin

Paul

Kassem

2018

Advances in Civil Engineering

144

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“…Long-term aging is performed by subjecting the prepared Asphalt Concrete (AC) sample in an oven at 85°C for 120 h (5 days). Researchers have intensively explored the effects of short-and long-term aging on the rheological properties of asphalt binder [13,19,9,27,18,15]. All of these studies focused on the rheological properties such as the shear modulus and viscosity of aged binder.…”

Section: Introductionmentioning

confidence: 99%

A study of asphalt aging using Indirect Tensile Strength test

Islam

Hossain

Tarefder

2015

Construction and Building Materials

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“…The gap between the upper and lower plates was selected to be 2 mm for all binders, including CRM residue, to avoid the effect of particles on the rheological properties [38][39][40]. However, it was applied 1 mm for all liquid binders [35].…”

Section: Dynamic Shear Rheometer (Dsr)mentioning

confidence: 99%

Influence of Guayule Resin as a Bio-Based Additive on Asphalt–Rubber Binder at Elevated Temperatures

Hemida

Abdelrahman

2019

Recycling

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This study seeks to find the influence of replacing a portion of the asphalt–rubber binder with the bio-based material “guayule resin.” This replacement could be beneficial in terms of sustainability, economics, and environmental concerns related to the asphalt industry. Nine asphalt–rubber–guayule binders were investigated to find their rheological properties. Consecutively, the study proceeded with five selected binders being compared to the original asphalt (PG64-22). Investigations underwent whole matrices (crumb rubber modifier (CRM) residue included) and liquid phases (CRM residue extracted). Additionally, these properties were partially sought for their corresponding asphalt–rubber binders to compare and judge the contribution of the guayule resin. Likewise, a thermo-gravimetric analysis was done for the guayule resin to recognize its moisture and composition complexity. Such an analysis was also done for the as-received CRM and some extracted CRMs to determine the release and residue of rubber components. Outcomes showed that the guayule resin has the potential to compensate the performance required against the original asphalt at elevated temperatures while greatly decreasing the asphalt cement proportion. For instance, a blend of 62.5% asphalt, 12.5% CRM, and 25% guayule resin provided better performance than that of the original asphalt.

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Short-term aging characterization of asphalt binders using gel permeation chromatography and selected Superpave binder tests

Cited by 103 publications

References 9 publications

State of the Art Study on Aging of Asphalt Mixtures and Use of Antioxidant Additives

State of the Art Study on Aging of Asphalt Mixtures and Use of Antioxidant Additives

A study of asphalt aging using Indirect Tensile Strength test

Influence of Guayule Resin as a Bio-Based Additive on Asphalt–Rubber Binder at Elevated Temperatures

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