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Asphalt Extraction and Recovery Procedures

Asphalt Extraction and Recovery Procedures

Asphalt Extraction and Recovery Procedures

The asphalt mixture is extracted with trichloroethylene (TCE), normal propyl bromide (nPb), or methylene chloride using the extraction equipment applicable to the particular method.

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SUMMARY OF ASPHALT BINDER EXTRACTION AND RECOVERY PROCEDURES

from asphalt mixture in addition to the asphalt binder recovery from solu tion utilizing the rotary evaporator. 1- Extraction Process 1.1 Asphalt Binder Extraction (According to ASTM D2172, Test...

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(PDF) SUMMARY OF ASPHALT BINDER EXTRACTION AND RECOVERY ...

SUMMARY OF ASPHALT BINDER EXTRACTION AND RECOVERY PROCEDURES.pdf. Obtain a preheated ceramic dish (110 ± 5℃) and record the weight of the dish. For the asphalt solution, stir it using the agitator for the mineral ash to be distributed homogenously in the solution (the solution amount is ≥ 1800 mL).Immediately pour approximately 100 mL ...

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

2019-11-18  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.

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Solvent Extraction-Recovery Procedures and their Effect

Solvent Extraction-Recovery Procedures and their Effect on Recovered Asphalt Properties OAPC-CPATT Study Findings Amma Wakefield, MASc, PEng. Canadian Regional Engineer Asphalt Institute OAPC Fall Seminar November 29, 2018

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Solvent Extraction-Recovery Procedures and their Effect

Solvent Extraction-Recovery Procedures and their Effect on Recovered Asphalt Properties Presenter(s): London, April 9th: Mike Aurilio, Snr.QC Product Development Coordinator –Yellowline Asphalt Products Ltd. GTA, April 11th: Amma Wakefield, MASc, PEng.–Canadian Regional Engineer –Asphalt Institute Sudbury, April 16th: Doubra Ambaiowei, Ph.D. –Technical Director, ORBA/OAPC

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(PDF) A Review of Solvent Extraction-Recovery Procedures ...

The extraction-recovery procedures and solvents used can also potentially have an impact on the recovered asphalt binder properties. As mixing and aging are not readily controllable, but testing...

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Solvent Extraction-Recovery Procedures and their Effect

Solvent Extraction-Recovery Procedures and their Effect on Recovered Asphalt Properties Ontario Case Study Amma Wakefield, MASc, PEng. Supervisor: Susan L. Tighe, PhD, PEng, MCSCE 1. Research Objective Compare physical properties and testing variability of original (tank) asphalt to

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Asphalt Binder Recovery: A Theoretical and Experimental ...

2009-7-8  Therefore, asphalt extraction and recovery procedures are a vital part of the quality control and assurance of asphalt pavement maintenance and rehabilitation projects. On the other hand, sensitivity of asphalt binder recovery test to changes of each of the main parameters of recovery procedures still needs to be investigated.

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Effect of Extraction and Recovery Procedure on the ...

The extraction-recovery procedures and solvents used can also potentially have an impact on the recovered asphalt binder properties. ... a survey was conducted on asphalt binder extraction and ...

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

A study was conducted to evaluate the effect of extraction and recovery procedures on asphalt binder properties and to determine if further aging was necessary on extracted asphalt binders.

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St. John’s, NL - tac-atc.ca

2019-12-16  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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Effect of Extraction and Recovery Procedure on the ...

The extraction-recovery procedures and solvents used can also potentially have an impact on the recovered asphalt binder properties. ... a survey was conducted on asphalt binder extraction and ...

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A Review of Solvent Extraction-Recovery Procedures and ...

The extraction-recovery procedures and solvents used can also potentially have an impact on the recovered asphalt binder properties. As mixing and aging are not readily

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NEW APPARATUS AND PROCEDURE FOR THE EXTRACTION

A new apparatus and procedure for the purpose of extracting asphalt binder from hot-mix and pavement samples has been developed. This procedure is the culmination of previous reports on solvents for the extraction of asphalt, the aging of asphalt in solution, and the removal of solvent from asphalt. The apparatus consists of a rotary drum for ...

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Impact of Different Extraction Recovery Method on ...

Depending upon this grading of the plants, maximum allowable percentage of RAP for the plants will be determined. The recent NCHRP 9-33 manual "Mix design manual for Hot Mix Asphalt" gives procedure to determine RAP stockpile variability. The different extraction and recovery methods give different allowable percentage of RAP.

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Asphalt Cement and Asphalt/Polymer Blends

New Apparatus and Procedure for the Extraction and Recovery of Asphalt Binder from Pavement Mixtures B. L. BURR, C. J. GLOVER, R. R. DAVISON, AND J. A. BULLIN A new apparatus and procedure for the purpose of extracting asphalt binder from hot

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Evaluation of Solvents for Extraction of Residual Asphalt ...

of various procedures show no difference in results (5). Ac­ tually, none of these procedures removes all the asphalt, but the quantity remaining is within the variance of the methods. This does not guarantee that results will be satisfactory when the properties of the recovered asphalt are studied, however. INADEQUATE EXTRACTION AND RECOVERY

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Quantitative Evaluation of Asphalt Binder Extraction from ...

2020-10-5  method that allows binder characterization ( is the extraction and recovery method (3; 14). Physical and chemical measurements of asphalt binder extracted from asphalt mix require accurate and precise extraction and recovery procedure (2). The extraction by centrifuge method was found to

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Design Factors For Using RAP In Hot Mix Asphalt

2021-8-9  Recovery To Determine the Physical Properties of RAP Binder Conducted after extraction procedure ASTM 1856 - Recovery of Asphalt from Solution by Abson Method ASTM D5404 - Recovery of Asphalt from Solution Using the Rotavapor Apparatus AASHTO TP2 - Quantitative Extraction and Recovery of Asphalt Binder from Hot Mix Asphalt (HMA)

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Evaluation of asphalt cement extraction and recovery ...

2021-8-11  Variables of these procedures such as the time an asphalt cement was exposed to extraction solvent, the total quantity of asphalt cement recovered, the total quantity of extraction solvent, and both the type and quantity of fines in the extracted mix samples were isolated to determine their influence on tested asphalt cement properties.

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Survey of Current Asphalt Binder Extraction and Recovery ...

Survey of Current Asphalt Binder Extraction and Recovery Practices. In the context of a literature study for the Ministry of Transportation of Ontario, a survey was conducted on asphalt binder extraction and recovery, with government agencies and research laboratories in the United States, Canada and Europe participating, receiving 40 responses.

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Solvent Removal from Asphalt

properties of asphalt. HISTORY Extraction and recovery of asphalt have been practiced in some form since the turn of the century. In 1903, as discussed by Abson (/), Dow extract d with carb n di ulfide S2) and reco.vered u ing imple di tillation. ln 1927 Bateman and Delp (2) centrifuge-extracted with 2 and removed the .sol­

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Impact of Different Extraction Recovery Method on ...

Depending upon this grading of the plants, maximum allowable percentage of RAP for the plants will be determined. The recent NCHRP 9-33 manual "Mix design manual for Hot Mix Asphalt" gives procedure to determine RAP stockpile variability. The different extraction and recovery methods give different allowable percentage of RAP.

get price

Quantitative evaluation of asphalt binder extraction from ...

2021-3-1  Physical and chemical measurements of asphalt binders extracted from asphalt mix require accurate and precise extraction and recovery procedures . As mentioned above, the centrifuge (Method A in ASTM D2172 [15] ) and reflux (Method B in ASTM D2172 [15] ) methods are the most common binder extraction methods because of their simplicity and ...

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Bitumen extraction and recovery in road industry: A global ...

2017-9-10  Binder extraction and recovery are therefore critical preliminary steps in determining the characteristics of the reclaimed asphalt's components, which are specified in Europe by two standards: European standard EN 12697-1, listing the various extraction methods and solvents for determination of the soluble binder content;

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Validation of Reclaimed Shingles Asphalt Binder Extraction ...

2014-7-21  Therefore, the asphalt extraction and recovery process are valid for the RAS asphalt binder evaluation. Recommended. Cited By . Cited By Recommended Evaluation of Properties of Aged and Recycled Mixture without Extraction and Recovery. Sustainable Construction Materials 2012 December 2012 . Laboratory Performance of Asphalt Mixtures Containing ...

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Recovered asphalt testing for acceptance Asphalt magazine

ASTM and AASHTO procedures are available for performing extraction and recovery. The centrifuge solvent extraction method is the only method currently referenced in subsequent asphalt binder recovery procedures for determining recovered asphalt properties. The most common solvents used in the extraction

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Using RAP in the Superpave Mix Design System

2012-2-29  Extraction and Recovery Procedures • Extraction – Determine asphalt content of RAP – Determine RAP aggregate gradation – Necessary for mix design • Recovery – Determine asphalt binder physical properties – Necessary for blending charts • Usually for high % of RAP (greater than 20-25%)

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Report No 2. Government Accession No. -FHWA/TX

2018-4-4  procedure. These methods have also led to the discovery that existing ASTM procedures for extraction and recovery of asphalt fail in three ways. Highly improved methods have been developed. Numerous tank, hot-mix and roadway samples were collected and analyzed. The results demonstrate a dramatic increase in oxidation and aging with increased ...

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