performance grading of extracted and recovered asphalt

Performance grading of extracted and recovered asphalt ...

Oct 30, 2018  Effect of extraction solvent on performance properties. One of the first concerns that comes to mind when using solvent-extracted asphalt for performance grading is whether the solvent type and the length of time the asphalt is exposed to the solvent has any significant effect on the properties determined (e.g., , ).

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Performance grading of extracted and recovered asphalt ...

It is imperative to test extracted and recovered asphalt cement for specification grading. • Extended BBR grades for 3–5 year old pavements showed deficits ranging from 3 °C to 17.3 °C. • Extended BBR grades correlate well with limiting phase angle temperatures.

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Asphalt Binder Extraction Protocol for Determining Amount ...

study. A second goal for this project was to evaluate the variability of the Performance Grading (PG) properties of the extracted binder after recoveries. The experimental plan included the evaluation of AASHTO T164 methods A (centrifuge extraction), and method B (reflux extraction), asphalt analyzer as well as AASHTO T 308. A

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Improved performance grading of asphalt cement and hot mix ...

Aug 22, 2020  10%  Ontario municipal government agencies have recently been afflicted by significant premature pavement cracking. In response, stricter specifications were developed and implemented for acceptance on contracts. All but a few proven additives are banned in order to provide a cleaner product and the asphalt is graded after extraction and recovery from the loose mix.

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Asphalt Extraction and Recovery Procedures

Purpose of Extraction-Recovery Procedures • Extraction – Quantify asphalt content in mixture – Determine aggregate gradation of mixture – Volumetric mix design, QA, forensic investigation • Recovery – Test asphalt binder properties – Asphalt binder grade

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Asphalt Binder Extraction Protocol for Determining Amount ...

study. A second goal for this project was to evaluate the variability of the Performance Grading (PG) properties of the extracted binder after recoveries. The experimental plan included the evaluation of AASHTO T164 methods A (centrifuge extraction), and method B (reflux extraction), asphalt analyzer as well as AASHTO T 308. A

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Improved performance grading of asphalt cement and hot mix ...

Aug 22, 2020  Ontario municipal government agencies have recently been afflicted by significant premature pavement cracking. In response, stricter specifications were developed and implemented for acceptance on contracts. All but a few proven additives are banned in order to provide a cleaner product and the asphalt is graded after extraction and recovery from the loose mix.

get price

Asphalt Extraction and Recovery Procedures

Purpose of Extraction-Recovery Procedures • Extraction – Quantify asphalt content in mixture – Determine aggregate gradation of mixture – Volumetric mix design, QA, forensic investigation • Recovery – Test asphalt binder properties – Asphalt binder grade

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NJDOT Research Bureau

Performance Grading of PG76-22 Asphalt Binder Dosed with Rejuvenators 18 Aggregates and Mixture Design 19 Phase 1 Testing – Asphalt Binder Analysis 21 Black Space Diagram and the Glover - Rowe Damage Parameter 21 Christensen-Anderson Model (CAM) Master Curve Parameters 23 Performance Grade Results of Extracted/Recovered Binders 25

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Comparison between thermal, rheological and failure ...

Sep 30, 2019  Testing extracted and recovered materials would likely reduce the use of materials that are overheated and/or contaminated with reclaimed asphalt pavement (RAP) during production, as this is a likely cause for the poor performance of a significant number of binders.

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Feasibility of using Mastic for Performance Grading in ...

Dec 20, 2020  To determine the effect of additives on asphalt performance, the current procedure is to extract the binder from the mixture using solvents and recover the binder by removing the solvent. This is a two-step procedure, which can be time consuming and costly and which requires chemicals considered hazardous unless used with special care.

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Binder performance and testing abstracts 20200221

extracted and recovered asphalt binders Sarah Bird, Marissa Matthews, Simon Hesp Queen's University, Kingston, Ontario, Canada Abstract: Acceptance grading of asphalt binder is crucial for the control of pavement performance. Hot mix asphalt (HMA) taken directly from the paving equipment represents the actual material placed,

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Using a modified asphalt bond strength test to investigate ...

Jan 01, 2018  Based on the results from extracted asphalt performance grading and the multiple stress creep recovery (MSCR) test, it was found that the PE wax-based WMA additive, which was specially designed for asphalt mixtures with a high RAP content, significantly improved the rheological properties of aged asphalt binders from RAP materials.

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St. John’s, NL

industry for the extraction and recovery of asphalt binder. Among these combinations of extraction methods, recovery methods and solvents, there are a number of different mechanisms that may act on the asphalt binder, and can impact or modify the binder characteristics in a variety of ways (8). The various setups for the extraction

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Feasibility of Using Recycled Asphalt Pavements (RAP) in ...

performance. RAP millings were sampled from the city’s stockpiles; processed RAP and virgin materials were provided by a local plant. Two asphalt binders were used: PG 70-10 and PG 64-16. RAP variability was evaluated by aggregate gradations; extracted and recovered binder was tested for properties and grading.

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Evaluation of Low-Temperature Binder Properties of Warm ...

Nov 11, 2011  Sasobit compounds at 0.5, 1.0, and 1.5%, by weight of performance grade (PG) 52-34 asphalt binder, are used to design the WMA. Five and 10% of RAS were also added to a PG 52-34 asphalt binder. 50% of RAP combined with 50% of the base PG 58-28 binder, and 100% RAP extracted from the PG 58-28 HMA, were prepared and tested.

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Asphalt Extraction Reliance Specialty Products

Care must be taken when choosing an nPB based solvent for your asphalt extraction application. Differences in purity, moisture content, non-volatile residue, and stabilizers can affect the performance. Reliance Specialty Products specifically developed and formulated EnTron™-AE to exacting standards for asphalt extraction applications.

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Long-Term Aging of Asphalt Mixtures for Performance ...

6. Evaluate the effects of aging on cracking in asphalt pavements and develop a future research plan to implement the long-term aging procedure and associated models in Pavement ME Design. 7. Prepare a proposed AASHTO standard procedure for long-term aging of asphalt mixtures for performance testing and prediction. 8.

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Virginia Transportation Research Council research report

permeability prior to undergoing extraction and recovery of the asphalt binder for performance grading. In addition, for the two Sasobit trial sites, historic data, core data, and ground-penetrating radar scans were collected and compared to provide documentation of

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Asphalt Binder Extraction Protocol for Determining Amount ...

study. A second goal for this project was to evaluate the variability of the Performance Grading (PG) properties of the extracted binder after recoveries. The experimental plan included the evaluation of AASHTO T164 methods A (centrifuge extraction), and method B (reflux extraction), asphalt analyzer as well as AASHTO T 308. A

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NJDOT Research Bureau

Performance Grading of PG76-22 Asphalt Binder Dosed with Rejuvenators 18 Aggregates and Mixture Design 19 Phase 1 Testing – Asphalt Binder Analysis 21 Black Space Diagram and the Glover - Rowe Damage Parameter 21 Christensen-Anderson Model (CAM) Master Curve Parameters 23 Performance Grade Results of Extracted/Recovered Binders 25

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Repeatability and recovered testing of AC Asphalt magazine

When the five labs recovered the asphalt cement, the Ash test showed a range of 1.42 percent, over 10 times higher than the repeatability on un-extracted samples (tank samples). The same held true for the PG grading. In general, we expect to get a range less than 3°C for

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Evaluation of Asphalt Cement Characteristics and Field and ...

The binder characterization of liquid asphalt extracted from the plant produced asphalt ... samples were extracted from field produced mixture for performance grade evaluation. Mixture performance testing was conducted on as-produced HRB and WMA-HRB. Rut ... classification of the lab designed Asphalt Binder and the field recovered asphalt binder is

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OAPC CPATT Study: Performance Testing Update

Test Description Test Method/Standard Extraction of Asphalt Cement and Analysis of Extracted Aggregate MTO LS 282 Recovery of Asphalt from Solution by Abson or Rotary Evaporator MTO LS 284 Ash Content MTO LS 227 Grading or Verifying the Performance Grade of an Asphalt Binder AASHTO R 29 Multiple Stress Creep Recovery Test of Asphalt Binder Using a Dynamic

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Long-Term Aging of Asphalt Mixtures for Performance ...

6. Evaluate the effects of aging on cracking in asphalt pavements and develop a future research plan to implement the long-term aging procedure and associated models in Pavement ME Design. 7. Prepare a proposed AASHTO standard procedure for long-term aging of asphalt mixtures for performance testing and prediction. 8.

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St. John’s, NL

industry for the extraction and recovery of asphalt binder. Among these combinations of extraction methods, recovery methods and solvents, there are a number of different mechanisms that may act on the asphalt binder, and can impact or modify the binder characteristics in a variety of ways (8). The various setups for the extraction

get price

Virginia Transportation Research Council research report

permeability prior to undergoing extraction and recovery of the asphalt binder for performance grading. In addition, for the two Sasobit trial sites, historic data, core data, and ground-penetrating radar scans were collected and compared to provide documentation of

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Extraction and recovery of asphalt binder: a literature ...

Nov 18, 2019  A literature review was conducted on the main aspects of asphalt binder extraction and recovery: i) extraction methods, ii) recovery methods and iii) solvents. The extraction methods include centrifuge, reflux and vacuum and others with particular focus on their effectiveness in dissolving the binder and the potential to modify it. Studies found that the centrifuge was a relatively safe cold ...

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Asphalt Extraction Reliance Specialty Products

Care must be taken when choosing an nPB based solvent for your asphalt extraction application. Differences in purity, moisture content, non-volatile residue, and stabilizers can affect the performance. Reliance Specialty Products specifically developed and formulated EnTron™-AE to exacting standards for asphalt extraction applications.

get price

Evaluation of field aging effects on asphalt binder ...

Cores were obtained from three cells at MnROAD facility and the binders were extracted and recovered from 25 mm slices cut along the depth of the cores. ... Evaluation of field aging effects on asphalt binder properties. AU - Li, Xinjun ... aging that takes place in the asphalt binders used in the construction of asphalt pavements significantly ...

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Field-aged asphalt binder performance evaluation for ...

Asphalt binders were extracted and recovered, and were subjected to tests including continuous grading high temperature and low temperature, multiple stress creep recovery, and fracture. The results showed that after 2–6 years of field aging, the HMA binder had relative higher continuous grading high temperature than the Evotherm binder.

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Simon HESP Professor (Full) Queen's University ...

Performance grading of extracted and recovered asphalt cements. Article. Oct 2018; Haibo Ding. Justice Gyasi. ... (DENT) test for fatigue performance grading of asphalt binders. Seven pressure ...

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Illinois Tollway APPROVED LIST OF ASPHALT BINDER AND ...

compared to asphalt mixture with control or base asphalt binder. e. Extracted and Recovered AASHTO M320 and ASTM D7643 continuous grade asphalt binder grade compared to control mixture (Including Delta Tc calculation). The extraction shall be conducted with an Automatic Extraction unit, or according to AASHTO T164 (Method A).

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