Evaluation of Solvents for Extraction of Residual Asphalt from Aggregates C A CrPIONE R R DAvrsoN B L BuRR C J GLOVER AND J A BULLIN When highway cores and hot mixes are extracted several percent of the asphalt frequently remains on the aggregate A variety of solvents were evaluated for their ability to remove this material
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Excel Clean HD and Hisol Plus Extraction Solvents are non toxic citrus based and biodegradable Available in 5gal (189L) pails or 55gal (208L) drums Power Solv Extraction Solvent is citrus and petroleum based and used for gradations only The solvent is non rinsable and comes in a 5 or 55gal (189 or 208L) container
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METHOD OF TEST FOR QUANTITATIVE EXTRACTION OF ASPHALT CEMENT AND ANALYSIS OF EXTRACTED AGGREGATE FROM BITUMINOUS PAVING MIXTURES LS 282 R30 ASTM D2172 11 Page 1 of 10 4 APPARATUS 41 BALANCES Of sufficient capacity and sensitivity for miscellaneous weighing with associated
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Asphalt Extraction Solvent EnTron AE Safely replace trichloroethylene (TCE) and methylene chloride for asphalt extraction with EnTron AE EnTron AE is an n propyl bromide (nPB) based solvent which is safer to use and more environmentally friendly then the chlorinated solvents typically used in asphalt extraction applications
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AASHTO T 164 Test for Quantitative Extraction of Bitumen* AASHTO T 195 Test for Coated Particles for Bituminous Mixtures AASHTO T 168 Sampling Bituminous Paving Mixtures AASHTO T 304 Uncompacted Void Content of Fine Aggregate (Fine Aggregate Angularity) AASHTO T 308 Determining the Asphalt Content of Hot Mix Asphalt (HMA) by Ignition Method
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Automated Extraction of Asphalt Binder from Asphalt Mixtures (continued) Reference ASTM D8159 18 AASHTO Section Illinois Modification 881 Replace with the following Start the extraction process in accordance with manufacturer instructions If the solvent is not running at least light straw or running clear as seen through the
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This test method covers the recovery by the Abson method of asphalt from a solution from a previously conducted extraction The asphalt is recovered with properties substantially the same as those it
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1852 QUANTITATIVE EXTRACTION OF BITUMINOUS MIXTURES (CENTRIFUGE) AASHTO T 164 METHOD A (MN/DOT Modified) 18521 SCOPE This method of analysis quantitatively determines the asphalt content of bituminous mixtures using a centrifuge extractor and trichloroethylene or other approved solvents The use of alternatives like n propyl bromide and
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The asphalt binder content is calculated by differences from the mass of the extracted aggregate and moisture content and mineral matter in the extract (when using centrifuge extraction from Test Method A and when using the automated extraction in Method F The asphalt binder content is expressed as a mass percent of moisture free mixtur
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The laboratory is equipped to perform mixture designs and test asphalt mixtures for density moisture susceptibility dynamic modulus and to capture various modes of distress Extraction and recovery of binders and aggregates from asphalt mixtures can be performed to
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The Use and Performance of Asphalt Binder Modified with Polyphosphoric Acid (PPA) This Technical Brief provides an overview of the implication of the use of Polyphosphoric Acid as a modifier for asphalt binders and implications in relation to asphalt pavement performance Background The modification of asphalt binder to improve performance
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Solvent extraction methods (described in AASHTO T 164 and ASTM D 2172) use a solvent to remove asphalt binder from aggregate in an HMA mixture Asphalt binder content is then calculated by subtracting the mass of the aggregate remaining after the asphalt binder is removed from the initial mass of the test sample
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Measuring Asphalt Binder Content (from the WSDOT Pavement Guide) The asphalt content and gradation test can be used for HMA quality control acceptance or forensic analysis The three major test methods solvent extraction nuclear and ignition furnace are discussed here Each method offers a way to determine asphalt content from an HMA sample
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The asphalt content and gradation test can be used for HMA quality control acceptance testing or forensic analysis The three major test methods solvent extraction nuclear asphalt content gauge and ignition furnace are discussed here Each method offers a way to determine asphalt content and aggregate gradation from an HMA sample Solvent Extraction
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Standard Method of Test for Quantitative Extraction of Asphalt Binder from Hot Mix Asphalt (HMA) These methods cover the quantitative determination of asphalt binder in paving mixtures and pavement sampl Aggregate obtained by these methods may be used for sieve analysis using T 30 The valu
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extraction apparatus used The asphalt content is calculated by determining the difference of the weight (mass) of the HMA mixture and the extracted aggregate fibers if used and the fines recovered from the extracted solvent and water rinse if required The gradation of the extracted aggregate is
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ASPHALT ANALYZER Ground Tire Rubber Extraction Option This asphalt analyzer unit model PG is used for the extraction and determination of binder content in rubber modified bituminous mixtures in use with not flammable solvent (Trichloroethylene) Specifications Extraction and distillation is PC controlled and is using Windows® as Software
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Asphalt paving material is a dull black mixture of asphalt cement sand and crushed rock After being heated it is dumped out steaming hot onto the roadbed raked level and then compacted by a heavy steamroller Asphalt is also used for expansion joints and patches on concrete roads
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and its suitability for use in the asphalt solubility test and for the asphalt extraction and recovery procedur The recycled EnSolv obtained from the recovery process was also evaluated for its possible use in the extraction and recovery procedur
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original sample it will appear as asphalt cement in the final calculation unless a correction is made This is done by determining the amount of moisture in a separate 1000 g portion and adjusting the mass of the extraction test portion or if time permits heating the extraction test portion to a constant dry mass
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Asphalt Release Agents Extraction Solvents & Cleaners Developed over a year of extensive research our line of asphalt release agents & cleaners/extraction solvents have revolutionized the industry We have effectively eliminated the need for environmentally unfriendly solvents petroleum distillates and soy based asphalt release agents which
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Asphalt paving material is a dull black mixture of asphalt cement sand and crushed rock After being heated it is dumped out steaming hot onto the roadbed raked level and then compacted by a heavy steamroller Asphalt is also used for expansion joints and patches on concrete roads
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Note 2 Further testing of the asphalt mixture may be performed by using sieve analysis on the extracted aggregate Test Method D5444 or recovering the extracted asphalt binder from solution by Test Method D1856 Practice D5404/D5404M or Practice D7906 for asphalt binder property testing When recovering the asphalt binder for property testing all mineral matter should be removed from the
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The automated asphalt extraction is an innovative efficient quick and safe solvent based extraction of asphalt binder from asphalt mixtures to characterize and control the quality of asphalt mixtures by measuring asphalt content and studying the aggregate gradations This method is used for quality control and assurance acceptance criteria and research activiti
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41 This test method can be used for quantitative determination of asphalt content in asphalt mixture and pavement samples for quality control specification acceptance and mixture evaluation studi This test method does not require the use of solvents Aggregate obtained by this test method may be used for gradation analysis according to Test Method D5444
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