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Research on HighRAP Asphalt Mixtures with Rejuvenators

Research on HighRAP Asphalt Mixtures with Rejuvenators

Research on High-RAP Asphalt Mixtures with

2019-9-24  Nebraska Department of Transportation Research Reports Nebraska LTAP 2019 Research on High-RAP Asphalt Mixtures with Rejuvenators - Phase II Hamzeh Haghshenas University of Nebraska-Lincoln, [email protected] Gabriel Nsengiyumva University of Nebraska-Lincoln, [email protected] Yong-Rak Kim

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Research on High-RAP Asphalt Mixtures with Rejuvenators ...

2021-8-24  Addition of rejuvenators to the mixture of recycled asphalt binder and virgin binder led to a decrease in the amount of asphaltenes. Furthermore, rejuvenators improved colloidal instability index (CII), which implies that the aged binder has become more stable due to rejuvenation.

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Research on High-RAP Asphalt Mixtures with Rejuvenators ...

Research on High-RAP Asphalt Mixtures with Rejuvenators – Phase II. A previous study by the authors have demonstrated effectiveness of three rejuvenators: R1(triglyceride/fatty acid: agriculture-tech based), R2 (aromatic extract: petroleum-tech based), and R3 (tall oil:green-tech based) on rejuvenating properties of the aged binder.

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(PDF) Research on High-RAP Asphalt Mixtures with ...

2016-9-27  Research on High-RAP Asphalt Mixtures with Rejuvenators and WMA Additives. September 2016; Report number: SPR-P1(15) M016 ... Research on High-RAP Asphalt Mixtures wi th Rejuvenators

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(PDF) Research on High-RAP Asphalt Mixtures with ...

2019-8-31  Research outcomes and findings from the previous study resulted in consequential research needs for more specific investigation of high-RAP mixtures with rejuvenators in order to achieve realistic ...

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"Research on High-RAP Asphalt Mixtures with

A previous study by the authors have demonstrated effectiveness of three rejuvenators: R1 (triglyceride/fatty acid: agriculture-tech based), R2 (aromatic extract: petroleum-tech based), and R3 (tall oil: green-tech based) on rejuvenating properties of the aged binder. In that study, it was observed that the rejuvenators made high-RAP mixtures softer and more compliant, which may increase the ...

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Research on High-RAP Asphalt Mixtures with

2016-11-21  Research on High-RAP Asphalt Mixtures with Rejuvenators and WMA Additives 5. Report Date September 27, 2016 6. Performing Organization Code 7. Author/s H.F. Haghshenas, H. Nabizadeh, Y-R. Kim, K. Santosh 8. Performing Organization Report No. 26-1121-4021-001 9. Performing Organization Name and Address

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Effect of Rejuvenator on HMA Mixtures with High RAP

2018-3-9  the virgin binder, be used to improve cracking resistance of asphalt mixtures with high RAP and RAS contents. However, further research is needed to evaluate other rejuvenators and the use of rejuvenators in asphalt mixtures with tear-off RAS. Figure 2 Critical low temperatures of mixtures.

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Performance of Asphalt Mixtures with High Recycled ...

To improve the cracking resistance of asphalt mixtures with high recycled asphalt pavement (RAP) and reclaimed asphalt shingles (RAS) contents, one approach is to use a recycling agent (RA) (i.e., rejuvenator) to potentially restore the performance properties of the aged binder.

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Stiffness Characterization of Asphalt Mixtures with High ...

2017-1-1  Evaluating the Effect of Rejuvenators on the Degree of Blending and Performance of High RAP, RAS, and RAP/RAS Mixtures. Road Materials and Pavement Design, Vol.

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Research on High-RAP Asphalt Mixtures with Rejuvenators ...

Research outcomes and findings from the previous study resulted in consequential research needs for more specific investigation of high-RAP mixtures with rejuvenators in order to achieve realistic implementation into future high-RAP paving projects in Nebraska.

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Effects of rejuvenators on high-RAP mixtures based on ...

The test results showed rejuvenator-specific effects on the mixture properties, as well as damage-induced performance behavior in both testing scales (AC and FAM). More specifically, rejuvenators generally increased the ductility of the high-RAP mixtures, resulting in their improved cracking resistance of asphalt mixtures.

get price

Performance of Asphalt Mixtures with High Recycled ...

To improve the cracking resistance of asphalt mixtures with high recycled asphalt pavement (RAP) and reclaimed asphalt shingles (RAS) contents, one approach is to use a recycling agent (RA) (i.e., rejuvenator) to potentially restore the performance properties of the aged binder.

get price

Stiffness Characterization of Asphalt Mixtures with High ...

2017-1-1  Evaluating the Effect of Rejuvenators on the Degree of Blending and Performance of High RAP, RAS, and RAP/RAS Mixtures. Road Materials and Pavement Design, Vol.

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Balancing the Softening Effects of Asphalt Rejuvenators ...

2020-1-4  Asphalt Rejuvenators with Polymer Modified Asphalt in High RAP Content Mixtures Dr. Walaa S. Mogawer, PE, F.ASCE Director - Highway Sustainability Research Center Professor of Civil Environmental Engineering Innovative Research in Asphalt Pavements University of Massachusetts Portsmouth, NH October 23 rd, 2013 ♦♦♦♦ 4:30PM

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Evaluation on the mechanical performance of recycled ...

2021-2-1  In this research, the rejuvenators developed in the previous researches by authors were incorporated and used for preparing recycled asphalt mixtures with a high percentage of RAP. Their related mechanical properties were tested and compared with the original asphalt mixture.

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Evaluation of recycled asphalt mixtures rejuvenated with ...

2020-6-23  Reuse of reclaimed asphalt pavement (RAP) material not only leads to environmental sustainability, but also lowers down the of construction cost. However successful addition of RAP is limited to replacement level of 50%, as it is believed that higher quantity of the RAP makes the asphalt

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Research mysite

"Research on High-RAP Asphalt Mixtures with Rejuvenators and WMA Additives", Agency: Nebraska Department of Transportation, 07/2014 - 09/2016, Role: Leader. "Evaluation of Thin Asphalt Overlay Practice Preserving Nebraska Asphalt Pavements", Agency: Nebraska Department of Transportation, 01/2014 - 06/2015, Role: Member.

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Multi-scale performance evaluation and correlation ...

Recently, extensive studies focused on performance characterization of recycled asphalt mixtures with different rejuvenators and RAP dosage. Zhang et al. (2021) surveyed mechanical behavior of recycled asphalt mixtures with high RAP content and self-developed rejuvenators. The results indicated that rejuvenator with a relatively high-viscosity ...

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Influence of rejuvenators on bitumen ageing in hot ...

2018-6-1  Based on the above-described findings, it is reasonable to expect that recycled asphalt mixtures prepared with virgin bitumens, rejuvenators and high amounts of RAP (which releases a percentage of the same aged bitumen) suffer less ageing phenomena and could also be less stiff than virgin mixtures.

get price

Research on High-RAP Asphalt Mixtures with Rejuvenators ...

Research outcomes and findings from the previous study resulted in consequential research needs for more specific investigation of high-RAP mixtures with rejuvenators in order to achieve realistic implementation into future high-RAP paving projects in Nebraska.

get price

Research on High-RAP Asphalt Mixtures with Rejuvenators ...

Research on High-RAP Asphalt Mixtures with Rejuvenators ...

get price

Effects of rejuvenators on high-RAP mixtures based on ...

The test results showed rejuvenator-specific effects on the mixture properties, as well as damage-induced performance behavior in both testing scales (AC and FAM). More specifically, rejuvenators generally increased the ductility of the high-RAP mixtures, resulting in their improved cracking resistance of asphalt mixtures.

get price

Performance of Asphalt Mixtures with High Recycled ...

To improve the cracking resistance of asphalt mixtures with high recycled asphalt pavement (RAP) and reclaimed asphalt shingles (RAS) contents, one approach is to use a recycling agent (RA) (i.e., rejuvenator) to potentially restore the performance properties of the aged binder.

get price

Stiffness Characterization of Asphalt Mixtures with High ...

2017-1-1  Evaluating the Effect of Rejuvenators on the Degree of Blending and Performance of High RAP, RAS, and RAP/RAS Mixtures. Road Materials and Pavement Design, Vol.

get price

Balancing the Softening Effects of Asphalt Rejuvenators ...

2020-1-4  Asphalt Rejuvenators with Polymer Modified Asphalt in High RAP Content Mixtures Dr. Walaa S. Mogawer, PE, F.ASCE Director - Highway Sustainability Research Center Professor of Civil Environmental Engineering Innovative Research in Asphalt Pavements University of Massachusetts Portsmouth, NH October 23 rd, 2013 ♦♦♦♦ 4:30PM

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Performance of asphalt mixtures with high recycled ...

ABSTRACT Recycled asphalt mixtures with high amounts of reclaimed asphalt pavement (RAP) and recycled asphalt shingles (RAS) can be excessively stiff, brittle, and prone to cracking. The use of recycling agents, or rejuvenators, can significantly reduce mixture stiffness and improve performance, specifically cracking resistance. In this study, the performance of recycled and rejuvenated ...

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The effect of rejuvenators on the aging resistance of ...

2019-11-10  In this research, oil-based and organic rejuvenators were used in asphalt mixtures containing 50% RAP, and the aging performance of the mixtures was studied by conducting resilient modulus, dynamic creep, indirect tensile fatigue and intermediate-temperature fracture tests on short and long term aged mixtures.

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Evaluation of recycled asphalt mixtures rejuvenated with ...

2020-6-23  Reuse of reclaimed asphalt pavement (RAP) material not only leads to environmental sustainability, but also lowers down the of construction cost. However successful addition of RAP is limited to replacement level of 50%, as it is believed that higher quantity of the RAP makes the asphalt

get price

Influence of rejuvenators on bitumen ageing in hot ...

2018-6-1  Based on the above-described findings, it is reasonable to expect that recycled asphalt mixtures prepared with virgin bitumens, rejuvenators and high amounts of RAP (which releases a percentage of the same aged bitumen) suffer less ageing phenomena and could also be less stiff than virgin mixtures.

get price