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determining asphalt content for recycled asphalt

determining asphalt content for recycled asphalt

DETERMINING ASPHALT CONTENT FOR RECYCLED

Determining Asphalt Content for Recycled Asphalt Pavement (RAP) Materials Final Report 6. Performing Organization Code 7. Author(s) Gary Thompson 8. Performing Organization Report No. 10. Work Unit No. (TRAIS) 9. Performing Organization Name and Address Asphalt Pavement Association of Oregon Asphalt Research Program 5240 Gaffin Rd. SE Salem ...

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Determining asphalt content for recycled asphalt pavement ...

The State of Oregon uses significant amounts of Recycled Asphalt Pavement (RAP) in dense-graded mixes on State highways. The design process for these mixes relies on accurately knowing the amount of asphalt cement in the RAP materials being used.

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DETERMINING ASPHALT CONTENT FOR RECYCLED

DETERMINING ASPHALT CONTENT FOR RECYCLED ASPHALT PAVEMENT (RAP) MATERIALS. FINAL REPORT. The State of Oregon uses significant amounts of Recycled Asphalt Pavement (RAP) in dense-graded mixes on State highways. The design process for these mixes relies on accurately knowing the amount of asphalt cement in the RAP materials being used.

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Determination of Recycled Asphalt Pavement (RAP)

Determination of Recycled Asphalt Pavement (RAP) Content in Asphalt Mixes Based on Expected Mixture Durability Prepared in Cooperation with The Ohio Department of Transportation and The U.S. Department of Transportation, Federal Highway Administration Final Report by Osama Abdulshafi, Ph.D., P.E. Bozena Kedzierski, M.S. Michael G. Fitch, M.S., P.E.

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Determining the optimum amount of recycled asphalt ...

Dec 20, 2019  The recycled asphalt pavement (RAP) applied in this research was provided by a heavy traffic highway in Tehran, Iran. The residual asphalt binder content of RAP was gained by the centrifugal extractor apparatus according to standard test method as ASTM D 2172. The results of recovered asphalt from RAP are shown in Table 5.

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DETERMINING ASPHALT CONTENT FROM ASPHALT PAVING

Recycled Asphalt Shingles (RAS)2 500–700 1. Refer to Table 1 for required sample weights. 2. Sample size exceeding the required weight above may not completely ignite the asphalt. PART I—DETERMINE ASPHALT CONTENT BY IGNITION METHOD 7. SCOPE 7.1 Use this procedure to determine the asphalt content of hot mix asphalt (HMA) paving mixtures using an

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DETERMINING THE ASPHALT BINDER CONTENT OF HOT MIX

DETERMINING THE ASPHALT BINDER CONTENT OF HOT MIX ASPHALT (HMA) BY THE IGNITION METHOD FOP FOR AASHTO T 308 ... Some agencies allow the use of recycled HMA. When using recycled HMA, check with the agency for specific correction procedures. Binder in the HMA is ignited in a furnace. Asphalt binder content is calculated as the

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METHOD OF DETERMINING ASPHALT CONTENT OF

METHOD OF DETERMINING ASPHALT CONTENT OF BITUMINOUS MIXTURES BY USE OF THE NUCLEAR GAGE A. SCOPE . This test method describes the procedure for determining the asphalt content of either a conventional bituminous mixture or a recycled mixture by means of an Asphalt Content Gage. The gage operates on the principal of neutron moderation.

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Asphalt Binder Extraction Protocol for Determining

are different well established AASHTO procedures to determine the asphalt content of an asphalt mix, the accuracy of these test procedures may be sensitive to local materials. In addition, as the use of high recycled binder content mixes increases, there is a need to evaluate the within-lab and between-lab variability. A second goal for this ...

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The Nuclear Asphalt Content Gauge FHWA

Currently, there are three gauges on the market for determining the asphalt content. Two are made by Troxler Corporation, Models 3241-C and 3242, and one by CPN Inc., Model AC-2. The other nuclear density gauge manufacturers, Seaman and Humboldt, do not currently offer asphalt content gauges. These gauges consist of a control unit, sample ...

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Determination of Recycled Asphalt Pavement (RAP)

Determination of Recycled Asphalt Pavement (RAP) Content in Asphalt Mixes Based on Expected Mixture Durability Prepared in Cooperation with The Ohio Department of Transportation and The U.S. Department of Transportation, Federal Highway Administration Final Report by Osama Abdulshafi, Ph.D., P.E. Bozena Kedzierski, M.S. Michael G. Fitch, M.S., P.E.

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DETERMINING ASPHALT CONTENT FROM ASPHALT

Recycled Asphalt Shingles (RAS)2 500–700 1. Refer to Table 1 for required sample weights. 2. Sample size exceeding the required weight above may not completely ignite the asphalt. PART I—DETERMINE ASPHALT CONTENT BY IGNITION METHOD 7. SCOPE 7.1 Use this procedure to determine the asphalt content of hot mix asphalt (HMA) paving mixtures using an

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Asphalt Binder Extraction Protocol for Determining Amount ...

are different well established AASHTO procedures to determine the asphalt content of an asphalt mix, the accuracy of these test procedures may be sensitive to local materials. In addition, as the use of high recycled binder content mixes increases, there is a need to evaluate the within-lab and between-lab variability. A second goal for this ...

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Reclaimed Asphalt Pavement - User Guideline - Asphalt ...

Mar 08, 2016  Either the Marshall (18) or the Hveem (19) mix design procedures are used by most state agencies for determining the asphalt cement and acceptable RAP content of recycled paving mixes. (1) Recycling and rejuvenating agents can be divided into three main types: "super-soft" asphalt cements, napthenic (aromatic) oils, and paraffinic oils.

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Determining Rejuvenator Content for Recycling Reclaimed ...

Rejuvenator content needed for recycling reclaimed asphalt pavement (RAP) is now mostly determined by considering the penetration or viscosity criterion

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Determination of Optimum Emulsified Asphalt Content of ...

Determination of Optimum Emulsified Asphalt Content of Cold In-Place Recycled Mixtures . FLH Designation: T 524 . 1. SCOPE 1.1. This standard practice is used to determine the percent of emulsified asphalt and other additives to use for recycling asphalt concrete when using Cold In-Place Recycling (CIR) of bituminous pavements.

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A micromechanics-based approach for determining presence ...

A micromechanics-based approach for determining presence and amount of recycled asphalt pavement material in asphalt concrete. Asphalt Paving Technology: Association of Asphalt Paving Technologists-Proceedings of the Technical Sessions, 74, 829-883.

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METHOD OF TEST FOR DETERMINING ASPHALT CONTENT

Plot the extracted asphalt content versus the actual asphalt content on Form No. TL-309 and connect these points with a straight line (Figure 6). b. Use this curve to correct for bitumen content prior to reporting. Correct the test results of extracted samples as follows: c. Locate the extracted asphalt content on the ordinate, proceed

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A Rapid Method for the Determination of SBS Content Based ...

Nov 18, 2021  The performance of Styrene-butadiene-styrene (SBS) modified asphalt is closely related to the content of SBS modifier. In the production process of modified asphalt, a certain amount of additive such as sulfur and rubber oil may be added to reduce the segregation and promote the swelling of the polymer, but the effect of these additives on determining SBS content in asphalt is not yet clear.

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Chapter 14. Cold-Mix Asphalt Recycling (Material And Mix ...

Jun 27, 2017  where: P r = Percent of new asphalt in the recycled mix. Some agencies (10) use an optimum liquid content (consisting of emulsion content and water) of 4.5 percent in all trial mixtures. For example, water contents of 4.0 percent, 3.5 percent, 3.0 percent and 2.5 percent would be used with emulsion contents of 0.5 percent, 1.0 percent, 1.5 percent, and 2.0 percent, respectively.

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Evaluation of Protocols for Determining Asphalt Binder ...

most-common methods for determining asphalt content are the American Association of State Highway and Transportation Officials (AASHTO) solvent extraction and ignitiontests. These procedures are well established; however, their accuracies are sensitive to variations in materials and high recycled binder content mixes commonly used in Wisconsin.

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Detection of Reclaimed Asphalt Pavement Presence in ...

The work deals with the detection of presence of RAP (reclaimed asphalt pavement) in asphalt mixtures. Information about the presence of RAP in an asphalt layer can be technically advantageous, for example, when planning further recycling of the layer. The method described in the paper can also be used to verify the success of a treatment of an aged binder in RAP, which is dosed in the ...

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DETERMINING ASPHALT CONTENT FROM ASPHALT

DETERMINING ASPHALT CONTENT FROM ASPHALT PAVING MIXTURES BY THE IGNITION METHOD TXDOT DESIGNATION: TEX-236-F CONSTRUCTION DIVISION 4 – 7 EFFECTIVE DATE: 01/18-06/19 6.8 Determining Asphalt Content Correction Factor: 6.8.1 Determine the asphalt content for each ignited sample in Section 6.6 in accordance with Section 9.1. 6.8.2 Use the Asphalt Content

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Method for identifying the extent of aging in an asphalt

Disclosed are asphalt and asphalt binders and methods for making such compositions with sterols. The sterols improve various rheological properties. Also disclosed are methods of determining the changes or improvements of various rheoloical properties.

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Determining Rejuvenator Content for Recycling Reclaimed ...

Rejuvenator content needed for recycling reclaimed asphalt pavement (RAP) is now mostly determined by considering the penetration or viscosity criterion

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DETERMINING RECYCLED ASPHALT BINDER LIMITS

The idea of recycling asphalt pavements and shingles has been in practice for more than a couple of decades. Reclaimed Asphalt Pavement (R AP) and Reclaimed Asphalt Shingles (R AS) hold significant value with regard to the recycled binder and the recycled aggregate both of which can be incorporated into Hot Mix Asphalt (HM A).

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Chapter 14. Cold-Mix Asphalt Recycling (Material And Mix ...

Jun 27, 2017  where: P r = Percent of new asphalt in the recycled mix. Some agencies (10) use an optimum liquid content (consisting of emulsion content and water) of 4.5 percent in all trial mixtures. For example, water contents of 4.0 percent, 3.5 percent, 3.0 percent and 2.5 percent would be used with emulsion contents of 0.5 percent, 1.0 percent, 1.5 percent, and 2.0 percent, respectively.

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METHOD OF TEST FOR QUANTITATIVE DETERMINATION OF

QUANTITATIVE DETERMINATION OF ASPHALT CEMENT CONTENT BY IGNITION AND ANALYSIS OF REMAINING AGGREGATE FROM BITUMINOUS PAVING MIXTURES 1. SCOPE 1.1 This method covers the quantitative determination of asphalt cement in a bituminous paving mixture by ignition in a furnace. It can be used for mixes containing recycled asphalt pavement (RAP).

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PennDOT RECYCLING MATERIAL FACT SHEET Reclaimed

Asphalt pavement is America’s most recycled and reused material. A recent FHWA survey reported that asphalt pavement recycled and reused rate is approximately 99 percent for WMA. In 2018, the National Asphalt Pavement Association (NAPA) reported: • RAP usage in asphalt mixtures reached an all-time high of approximately 82.2 million tons,

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Refining the Ignition Method for Asphalt Content Determination

Asphalt Content Average Correction Factors - Mix 3. Table 2 summarizes the average asphalt content, average CF, and within- and between-lab standard deviations for each mix. Mixes 1 and 2 had similar within- and between-lab standard deviations: 0.089 and

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A Rapid Method for the Determination of SBS Content Based ...

Nov 18, 2021  The performance of Styrene-butadiene-styrene (SBS) modified asphalt is closely related to the content of SBS modifier. In the production process of modified asphalt, a certain amount of additive such as sulfur and rubber oil may be added to reduce the segregation and promote the swelling of the polymer, but the effect of these additives on determining SBS content in asphalt is not yet clear.

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Detection of Reclaimed Asphalt Pavement Presence in ...

The work deals with the detection of presence of RAP (reclaimed asphalt pavement) in asphalt mixtures. Information about the presence of RAP in an asphalt layer can be technically advantageous, for example, when planning further recycling of the layer. The method described in the paper can also be used to verify the success of a treatment of an aged binder in RAP, which is dosed in the ...

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ASPHALT CONCRETE HAVING A HIGH RECYCLED CONTENT

What is claimed is: 1. A method of making an asphalt concrete mixture that includes a reclaimed asphalt pavement (RAP) and that has a job mix formula (JMF) that specifies an amount of aggregates, gradation of the aggregates, and at least a selected minimum effective binder content (MEBC), the method comprising: combining a virgin binder, a virgin aggregate, and the RAP in amounts wherein the ...

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Tech Brief: State of the Knowledge for Use of Asphalt ...

Determining the Binder Content on RAP and RAS . According to research conducted, West (2015) provides two acceptable procedures for determining the binder content of RAP (Pb (RAP)). AASHTO T 308-16 uses an ignition furnace to burn the asphalt off the mineral aggregate in a recycled mixture. When using the ignition furnace to

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Read "Use of Reclaimed Asphalt Pavement and Recycled ...

Test Methods to determine Asphalt Content There are two test methods that can be used to determine the asphalt content of mixtures as well as asphalt-containing recycled materials. These are the traditional solvent extrac- tion methods (AASHTO T164) and the newer method using an ignition oven (AASHTO T308).

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Method for identifying the extent of aging in an asphalt

Disclosed are asphalt and asphalt binders and methods for making such compositions with sterols. The sterols improve various rheological properties. Also disclosed are methods of determining the changes or improvements of various rheoloical properties.

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LOW-COST PAVEMENT BY USING SOLID WASTE, RECYCLED ...

Jan 29, 2021  In this paper, a practical idea is presented for the possibility of producing low-cost pavement for paving rural streets with light traffic loads by using asphalt mixtures of recycled aggregates (RA), fine used rubber (FR), and waste plastic (WP). The mechanical properties of the asphalt mixtures with the RA were determined. In addition to the determination of these characteristics when adding ...

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Determining Asphalt Content from Asphalt Paving Mixtures ...

DETERMINING ASPHALT CONTENT FROM ASPHALT PAVING MIXTURES BY THE IGNITION METHOD TXDOT DESIGNATION: TEX-236-F CONSTRUCTION DIVISION 3 – 7 10/11–02/16 6. CORRECTION FACTORS 6.1 Use the Blank Weigh Up worksheet in the Mix Design Report to prepare two blank samples in the laboratory in accordance with Tex-205-F, Sections 4.1–4.6.

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