determination of recycled asphalt pavement (rap) content

Determination of Recycled Asphalt Pavement (RAP) Content ...

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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DETERMINATION OF RECYCLED ASPHALT PAVEMENT (RAP)

determination of recycled asphalt pavement (rap) content in asphalt mixes based on expected mixture durability Decreasing supplies of locally available quality aggregate in some areas, growing concern over waste disposal, and the rising cost of asphalt binder have resulted in greater use of recycled asphalt pavement (RAP) for new road construction.

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Determination of recycled asphalt pavement (RAP) content ...

Determination of recycled asphalt pavement (RAP) content in asphalt mixes based on expected mixture durability. Save. Determination of recycled asphalt pavement (RAP) content in asphalt mixes based on expected mixture durability. Show Reference URL. Use of image is subject to ...

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DETERMINING ASPHALT CONTENT FOR RECYCLED ASPHALT

DETERMINING ASPHALT CONTENT FOR RECYCLED ASPHALT PAVEMENT (RAP) MATERIALS Final Report PROJECT 304-221 by Gary Thompson Asphalt Pavement Association of Oregon 5240 Gaffin Rd. SE Salem, OR 97301 for Oregon Department of Transportation Research Unit 200 Hawthorne SE, Suite B-240 Salem OR 97301-5192 and Federal Highway Administration Washington, D.C.

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Determining the optimum amount of recycled asphalt ...

Dec 20, 2019  The new percentage of asphalt binder content for mixtures containing recycled asphalt pavement (RAP), described as a percentage of total mixture weight, can be calculated with the following equation: : (4) Pb N = Pb T-Pb R ∗ TR where Pb N is the new percentage of asphalt binder content (%); Pb T is the optimum asphalt binder content (%); Pb R ...

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DETERMINING ASPHALT CONTENT FROM ASPHALT PAVING

reclaimed asphalt pavement (RAP) stockpiles, and recycled asphalt shingles (RAS) stockpiles using an ignition oven. Use the remaining aggregate for sieve analysis in accordance with Tex-200-F. 1.2 Use Part II of this test method to determine aggregate gradation and asphalt content correction factors before the start of production.

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Recycled Asphalt Pavement - Purdue University

RECYCLED ASPHALT PAVEMENT SAVING PAVEMENT SAVING MONEY SAVING THE ENVIRONMENT Dudley Bonte, Rieth-Riley Becky McDaniel, North Central Superpave Center Indiana LTAP Asphalt Workshop November 12, 2009 1

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DETERMINING ASPHALT CONTENT FROM ASPHALT

reclaimed asphalt pavement (RAP) stockpiles, and recycled asphalt shingles (RAS) stockpiles using an ignition oven. Use the remaining aggregate for sieve analysis in accordance with Tex-200-F. 1.2 Use Part II of this test method to determine aggregate gradation and asphalt content correction factors before the start of production.

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DETERMINATION OF USABLE RESIDUAL ASPHALT BINDER

For current recycled mix designs, the Illinois Department of Transportation (IDOT) assumes 100% contribution of working binder from Recycled Asphalt Pavement (RAP) materials when added to Hot Mix Asphalt (HMA). However, it is unclear if this assumption is correct and whether some binder may potentially be acting as “black rock,” and not

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RAP Detection and Quantity Determination in US Asphalt ...

FHWA, Recycling of Asphalt Pavements Using at Least 80 Percent Recycled Asphalt Pavement (RAP), Engineering and Environmental Aspects of Recycled Materials for Highway Construction, Report No. FHWA-RD-93-088, Environmental Protection Agency and

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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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Virgin Binder Determination for High RAP Content Mixture ...

Jun 06, 2021  An unreasonable assumption of the full blending of RAP material could lead to many issues, such as insufficient virgin binder content and poor pavement durability. This paper focuses on the determination of virgin binder grades and content during the design of a high RAP content mixture by considering RAP blending effectiveness.

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UNIVERSITY OF WISCONSIN SYSTEM SOLID WASTE

The use of recycled asphalt pavement (RAP) as road base material is an increasing trend in the road construction business. Use of RAP will reduce the amount of solid waste disposed in landfills and provide more sustainable construction due to the use of in-situ materials and the lower transportation cost.

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Superpave Design Guidelines for Using Hot-Mix Recycled ...

improvements using Recycled Asphalt Pavement (RAP) and experience starting in the mid-1990’s using Recycled Asphalt Shingles (RAS), recommended practices and procedures can be found in numerous publications regarding use of RAP and RAS. To assist new or less experienced personnel involved in the review, testing, design or production of hot ...

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Estimation of Blending of Rap Binder in a Recycled Asphalt ...

Aug 08, 2018  Many of the recycled asphalt pavement (RAP) mix design methods assume 100% blending of the RAP binder with virgin binder to estimate the properties of the binder in the RAP mix. However, 100% blending is not practically achieved.

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EUROPA - Optimal content of recycling asphalt pavement RAP ...

Recycling of asphalt pavements. First part of research package "Recycling of Reclaimed Asphalt in Hot Mixes" Technical Implications. Regarding the quality of the mixture, in principle up to 100% RAP can be used in the preparation of mixtures. However, there are requirements which limit the content of recy-cling asphalt pavement RAP.

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Characterization of HMA mixtures containing high recycled ...

available recycled materials like reclaimed asphalt pavements (RAP) and crumb rubber (CR). The objective of this study was to fundamentally characterize the laboratory performance of conventional HMA mixtures and mixtures containing high RAP content and waste tire crumb rubber/additives through their fundamental engineering properties.

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October 2017 - Louisiana State University

Jul 14, 2017  operators. Polymer content determination and quantification of aging in recycled asphalt pavement (RAP) mixtures are possible without extracting the binder from the asphalt mixtures when using FTIRS. Identification of variables that affect the differences between actual and field-determined FTIRS polymer/RAP

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Reclaimed Asphalt Pavement (RAP) and Reclaimed Asphalt ...

of Characterizing Reclaimed Asphalt Pavement (RAP)” or Illinois Modified AASHTO T-164-11, Test Method A. (b) Evaluation of RAS Test Results. All of the test results, with the exception of percent unacceptable materials, shall be compiled and averaged for asphalt binder content and gradation.

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UG-Mat Reclaimed Asphalt Pavement Recycled Materials ...

The RAP obtained from most wearing surface mixes will usually have an asphalt content in the 4.5 to 6 percent range. The recovered asphalt from RAP usually exhibits low penetration and relatively high viscosity values, depending on the amount of time the original pavement has been in service.

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MARSHALL MIX DESIGN METHOD FOR ASPHALTIC

3.2 Reclaimed Asphalt Pavement (RAP) - RAP consists of salvaged, milled, pulverized, broken, or crushed asphalt pavement. RAP contains “RAP aggregate” and bituminous materials hereinafter referred to as “RAP Binder”. The gradation of the RAP material shall conform to

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Determination of usable residual asphalt binder in RAP.

For current recycled mix designs, the Illinois Department of Transportation (IDOT) assumes 100% contribution of working binder from Recycled Asphalt Pavement (RAP) materials when added to Hot Mix Asphalt (HMA).

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RAP Detection and Quantity Determination in US Asphalt ...

FHWA, Recycling of Asphalt Pavements Using at Least 80 Percent Recycled Asphalt Pavement (RAP), Engineering and Environmental Aspects of Recycled Materials for Highway Construction, Report No. FHWA-RD-93-088, Environmental Protection Agency and

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October 2017 - Louisiana State University

Jul 14, 2017  operators. Polymer content determination and quantification of aging in recycled asphalt pavement (RAP) mixtures are possible without extracting the binder from the asphalt mixtures when using FTIRS. Identification of variables that affect the differences between actual and field-determined FTIRS polymer/RAP

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Reclaimed Asphalt Pavement (RAP) and Reclaimed Asphalt ...

of Characterizing Reclaimed Asphalt Pavement (RAP)” or Illinois Modified AASHTO T-164-11, Test Method A. (b) Evaluation of RAS Test Results. All of the test results, with the exception of percent unacceptable materials, shall be compiled and averaged for asphalt binder content and gradation.

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Superpave Design Guidelines for Using Hot-Mix Recycled ...

improvements using Recycled Asphalt Pavement (RAP) and experience starting in the mid-1990’s using Recycled Asphalt Shingles (RAS), recommended practices and procedures can be found in numerous publications regarding use of RAP and RAS. To assist new or less experienced personnel involved in the review, testing, design or production of hot ...

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MARSHALL MIX DESIGN METHOD FOR ASPHALTIC

3.2 Reclaimed Asphalt Pavement (RAP) - RAP consists of salvaged, milled, pulverized, broken, or crushed asphalt pavement. RAP contains “RAP aggregate” and bituminous materials hereinafter referred to as “RAP Binder”. The gradation of the RAP material shall conform to

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Estimation of Blending of Rap Binder in a Recycled Asphalt ...

Aug 08, 2018  Many of the recycled asphalt pavement (RAP) mix design methods assume 100% blending of the RAP binder with virgin binder to estimate the properties of the binder in the RAP mix. However, 100% blending is not practically achieved.

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Literature Search and Report On Recycled Asphalt Pavement ...

The most widely used recycled materials are recycled asphalt pavement (RAP) and recycled concrete aggregate (RCA). RAP is produced by removing and reprocessing existing asphalt pavement (6,7), and RCA is the product of the demolition of concrete structures such as buildings, roads and runways.(2) The production of RAP and

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EUROPA - Optimal content of recycling asphalt pavement RAP ...

Recycling of asphalt pavements. First part of research package "Recycling of Reclaimed Asphalt in Hot Mixes" Technical Implications. Regarding the quality of the mixture, in principle up to 100% RAP can be used in the preparation of mixtures. However, there are requirements which limit the content of recy-cling asphalt pavement RAP.

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Performance of Reclaimed Asphalt Pavement (RAP) as a ...

Reclaimed Asphalt Pavement (RAP) was used to replace fine aggregate in concrete at 0, 20, 40, 60, 80 and 100%. Workability, density and compressive strength were carried out on the specimens in line with specific standards. Based on the results obtained, RAP content of up to 40% was observed to be viable for both density reduction and

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Approach for Determination of Maximum Reclaimed Asphalt ...

May 26, 2020  Reclaimed asphalt pavement (RAP), commonly generated from the millings of damaged roads, contains asphalt and aggregate. Use of RAP results in both economic and environmental benefits, including: (i) cost savings from reducing the amount of virgin asphalt binder and aggregate, and (ii) reduced landfill space for disposal of used materials.

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[PDF] Reclaimed Asphalt Pavement – A Literature Review ...

While the state of Illinois has been recycling Reclaimed Asphalt Pavement (RAP) material into hot-mix asphalt (HMA) since 1980, there continues to be questions regarding the correct approach to design HMA with RAP. The Illinois Department of Transportation's current method of RAP HMA design provides 100% contribution for the residual asphalt binder from the RAP based on solvent extractions.

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EVALUATION OF HIGH PERCENTAGE RECYCLED ASPHALT

[Cosentino 2001]. Recycled Asphalt Pavement (RAP) is one of the most commonly used recycled materials. RAP is the term given to removed and/or reprocessed pavement materials containing asphalt and aggregates. RAP is generated when asphalt pavements are removed for reconstruction, resurfacing, or to obtain access to buried utilities.

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Determination of percent working binder in recycled ...

Determination of percent working binder in recycled asphalt pavement materials. I. L. Al-Qadi, ... The amount of working binder available in RAP materials is unknown. A research plan was developed to determine the amount of working binder using complex modulus measurements of mixes containing stockpile RAP and the aggregate and binder recovered ...

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