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evaluating the effects of recycling agents on asphalt

evaluating the effects of recycling agents on asphalt

Evaluating the Effects of Recycling Agents on Asphalt ...

Mar 02, 2021  The TRB National Cooperative Highway Research Program's NCHRP Research Report 927: Evaluating the Effects of Recycling Agents on Asphalt Mixtures with High RAS and RAP Binder Ratios presents an evaluation of how commercially available recycling agents affect the performance of asphalt mixtures incorporating RAP and RAS at high recycled binder ...

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Evaluating the Effects of Recycling Agents on Asphalt ...

Evaluating the Effects of Recycling Agents on Asphalt Mixtures with High RAS and RAP Binder Ratios. More than 90% of highways and roads in the United States are built using hot-mix asphalt (HMA) or warm-mix asphalt (WMA) mixtures, and these mixtures now recycle more than 99 percent of 76.2 million tons of reclaimed asphalt pavement (RAP) and about 1 million tons of recycled asphalt

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Evaluating the Effects of Recycling Agents on Asphalt ...

Download a PDF of "Evaluating the Effects of Recycling Agents on Asphalt Mixtures with High RAS and RAP Binder Ratios" by the National Academies of Sciences, Engineering, and Medicine for free.

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Evaluating the Effects of Recycling Agents on Asphalt ...

Mar 02, 2021  The TRB National Cooperative Highway Research Program's NCHRP Research Report 927: Evaluating the Effects of Recycling Agents on Asphalt Mixtures with High RAS and RAP Binder Ratios presents an evaluation of how commercially available recycling agents affect the performance of asphalt mixtures incorporating RAP and RAS at high recycled binder ...

get price

Evaluating the Effects of Recycling Agents on Asphalt ...

Sep 27, 2019  Evaluating the Effects of Recycling Agents on Asphalt Mixtures with High RAS and RAP Binder More than 90 percent of highways and roads in the United States are built using hot-mix asphalt (HMA) or warm-mix asphalt mixtures, and these mixtures now recycle more than 99 percent of some 76.2 million tons of reclaimed asphalt pavement (RAP) and ...

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Evaluating the Effects of Recycling Agents on Asphalt ...

Evaluating the Effects of Recycling Agents on Asphalt Mixtures with High RAS and RAP Binder Ratios. This report evaluates the effectiveness of recycling agents in asphalt mixtures with high recycled apshalt shingle (RAS), reclaimed asphalt pavement (RAP), or combined RAS/RAP binder ratios through a coordinated program of laboratory and field experiments.

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Evaluating the Effects of Recycling Agents on Asphalt ...

46th Ohio Asphalt Paving Conference February 3, 2021 Evaluating the Effects of Recycling Agents on Asphalt Mixtures with High RAS and RAP Binder Ratios. MOTIVATION CONCERN for High Recycled Binder Ratio (RBR) = High RAP and/or RAS • OH in

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Summary Evaluating the Effects of Recycling Agents on ...

2 Evaluating the Effects of Recycling Agents on Asphalt Mixtures with High RAS and RAP Binder Ratios Many materials combinations were used; these included 10 base binders, 6 RAP sources, 5 RAS sources, 5 aggregate types, and 10 recycling agents.

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Evaluating the Effects of Recycling Agents on Asphalt ...

Evaluating the Effects of Recycling Agents on Asphalt Mixtures with High RAS and RAP Binder Ratios ... The overall objective of this study was to evaluate the influence of selected recycling ...

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Evaluation of different recycling agents for restoring ...

May 22, 2014  10%  Because of aged binder, high reclaimed asphalt pavement (RAP) content mixes are susceptible to cracking failures and are less workable than virgin mixtures. The potential of six differently originated recycling agents was evaluated in this study to restore the desired binder properties using conventional binder test methods and the results were compared with

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Evaluating the Effects of Recycling Agents on Asphalt ...

Evaluating the Effects of Recycling Agents on Asphalt Mixtures with High RAS and RAP Binder Ratios. This report evaluates the effectiveness of recycling agents in asphalt mixtures with high recycled apshalt shingle (RAS), reclaimed asphalt pavement (RAP), or combined RAS/RAP binder ratios through a coordinated program of laboratory and field experiments.

get price

Evaluating the Effects of Recycling Agents on Asphalt ...

Evaluating the Effects of Recycling Agents on Asphalt Mixtures with High RAS and RAP Binder More than 90 percent of highways and roads in the United States are built using hot-mix asphalt (HMA) or warm-mix asphalt mixtures, and these mixtures now recycle more than 99 percent of some 76.2 million tons of reclaimed asphalt pavement (RAP) and ...

get price

Read "Evaluating the Effects of Recycling Agents on ...

I-4 Evaluating the Effects of Recycling Agents on Asphalt Mixtures with High RAS and RAP Binder Ratios 3.18 Recycled asphalt shingles â RAS, manufactured shingle waste or post-consumer asphalt shingle that has been processed into a recyclable material. 3.19 Recycled binder blend, for the purposes of this specification, shall mean the mixture ...

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Evaluating the Effects of Recycling Agents on Asphalt ...

Evaluating the Effects of Recycling Agents on Asphalt Mixtures with High RAS and RAP Binder Ratios ... The overall objective of this study was to evaluate the influence of selected recycling ...

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The Effects of Recycling Agents on Asphalt Mixtures with ...

The main objectives of this study were to provide tools for selecting the appropriate dose of recycling agent; optimizing recycled materials type and content; evaluating the effect of various factors on the long-term performance of rejuvenated asphalt mixtures; and providing practice-ready guidelines for evaluation, materials selection and ...

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THE EFFECTS OF RECYCLING AGENTS ON ASPHALT

THE EFFECTS OF RECYCLING AGENTS ON ASPHALT MIXTURES WITH HIGH RAS AND RAP BINDER RATIOS PHASE II REVISED INTERIM REPORT Prepared for National Cooperative Highway Research Program Transportation Research Board of ... PRACTICAL TOOLS FOR EVALUATION OF HIGH RBR BINDER

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NCHRP 9-58 The Effects of Recycling Agents on Asphalt ...

Asphalt Mixture Construction Expert Task Group September 20, 2017 . NCHRP 9-58 The Effects of Recycling Agents on Asphalt Mixtures with High RAS and RAP Binder Ratios

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Design Consideration of Asphalt Mixtures Containing RAS ...

•Evaluate the intermediate and low temperatures laboratory performance – conventional asphalt mixtures – mixtures containing RAS – Effect of recycling agents (RAs) • Three 12.5mm Mixtures - RAs – Mix 4: 52PG5P-RA 1-B • RAS = 5% PCWS • RA 1: PG 52-28 – Mix 5: 70PG5P-RA 2-B • RAS = 5% PCWS • RA 2 = 5% – Mix 6: 70PG5P-RA 3-B • RAS = 5% PCWS

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Evaluation of a Biofuel Residue-Derived Recycling Agent ...

Jul 24, 2021  This study was undertaken to evaluate effectiveness of a relatively new type of plant-based recycling agent (RAg) produced from biofuel residue used in asphalt binder blends containing laboratory-simulated RAP binder (RAPsb).

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Soy-based rejuvenated asphalt binders: Impact on ...

Jul 25, 2021  Recycling agents, or rejuvenators, are products with chemical and physical characteristics designed to restore the rheological properties of aged asphalt binders to improve the performance of ...

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Effect of a Recycling Agent on the Performance of High-RAP ...

Jan 01, 2017  This project was conducted to evaluate the effect of a recycling agent (RA), known as Hydrogreen, on the long-term field performance of high RAP and RAS mixes. The field study consisted of three test sections, each constructed by placing a dense-graded surface lift at a depth of 4.5 cm (1.75 in.) on SR 7 near Harrisonville, Missouri, in August ...

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EVALUATION AND CHARACTERIZATION OF RECYCLING

rheological changes was developed to better identify good recycling agents. The effect of dose and type of recycling agent was analyzed again for mixture blends by analyzing rutting and cracking data obtained. Finally, the recycling agents were ranked according to their effectiveness using binder as well as mixture results.

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Evaluation of different recycling agents for restoring ...

May 22, 2014  Because of aged binder, high reclaimed asphalt pavement (RAP) content mixes are susceptible to cracking failures and are less workable than virgin mixtures. The potential of six differently originated recycling agents was evaluated in this study to restore the desired binder properties using conventional binder test methods and the results were compared with performance-related test results

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NCHRP - Transportation Research Board

The objectives of this research are to (1) evaluate the effectiveness of recycling agents in HMA and WMA mixtures with high RAS, RAP, or combined RAS/RAP binder ratios through a coordinated program of laboratory and field experiments; (2) propose revisions to several relevant AASHTO specifications and test methods; and (3) develop training and workshop materials and deliver one workshop.

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EVALUATION AND CHARACTERIZATION OF RECYCLING

rheological changes was developed to better identify good recycling agents. The effect of dose and type of recycling agent was analyzed again for mixture blends by analyzing rutting and cracking data obtained. Finally, the recycling agents were ranked according to their effectiveness using binder as well as mixture results.

get price

Effect of a Recycling Agent on the Performance of High-RAP ...

Jan 01, 2017  This project was conducted to evaluate the effect of a recycling agent (RA), known as Hydrogreen, on the long-term field performance of high RAP and RAS mixes. The field study consisted of three test sections, each constructed by placing a dense-graded surface lift at a depth of 4.5 cm (1.75 in.) on SR 7 near Harrisonville, Missouri, in August ...

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EFFECT OF RECYCLING AGENTS ON THE STRUCTURAL

The quantity of recycling agent ultimately used was based on selected mixture and binder properties. This procedure is explained more fully in this paper. A secondary goal was to evaluate the effects of 2 widely different recycling agents and the effects of 2 different sources of salvaged material. A lab standard mixture of AC-10 and crushed ...

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Evaluation of a Biofuel Residue-Derived Recycling Agent ...

Jul 24, 2021  This study was undertaken to evaluate effectiveness of a relatively new type of plant-based recycling agent (RAg) produced from biofuel residue used in asphalt binder blends containing laboratory-simulated RAP binder (RAPsb).

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Effect of Recycling Agents on the Laboratory Performance ...

Jan 01, 2015  The objective of this study was to conduct a comprehensive laboratory evaluation of asphalt mixtures containing RAS with and without recycling agents. The study used post-consumer waste shingles. Five 12.5-mm asphalt mixtures were designed to meet Superpave ® design criteria, with three of the five mixtures containing no recycling agents and ...

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The Effects of Recycling Agents on Asphalt Mixtures with ...

The main objectives of this study were to provide tools for selecting the appropriate dose of recycling agent; optimizing recycled materials type and content; evaluating the effect of various factors on the long-term performance of rejuvenated asphalt mixtures; and providing practice-ready guidelines for evaluation, materials selection and ...

get price

Evaluation of different recycling agents for restoring ...

May 22, 2014  Because of aged binder, high reclaimed asphalt pavement (RAP) content mixes are susceptible to cracking failures and are less workable than virgin mixtures. The potential of six differently originated recycling agents was evaluated in this study to restore the desired binder properties using conventional binder test methods and the results were compared with performance-related test results

get price

Effects of Rejuvenating Agents on Superpave Mixtures ...

May 05, 2007  Rejuvenator is not a commonly used softening agent to be used in recycling of reclaimed asphalt pavement (RAP). In this study, Superpave mixtures containing RAP were designed using rejuvenating agents, including a rejuvenator and a softer binder, and subsequently evaluated in terms of the volumetric results, obtained the indirect tensile strength (ITS) of samples as well as evaluating

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Evaluation of the effects of anti-stripping agents on the ...

Jun 01, 2015  This study is aimed at determining the effects of two different anti-stripping additives, namely hydrated lime and a liquid anti-stripping agent (Iterlene In/400-S) on hot mix asphalt (HMA). Moisture susceptibilities of samples were determined by analyzing digital images taken from coated aggregate particles after performing boiling water test ...

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Soy-based rejuvenated asphalt binders: Impact on ...

Jul 25, 2021  Recycling agents, or rejuvenators, are products with chemical and physical characteristics designed to restore the rheological properties of aged asphalt binders to improve the performance of ...

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Effect of a Recycling Agent on the Performance of High-RAP ...

Recycling agents have been used in asphalt mixtures produced with high recycled contents to mitigate the potential negative effect of the recycled binder on cracking resistance.

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Characterization of Asphalt Mixtures with High Recycled ...

3.21 Recycling agent, additive with chemical and physical characteristics designed to restore the rheological properties of aged asphalt binders in recycled asphalt mixtures. Recycling agents are often called “rejuvenators.” 3.22 Recycling agent dose, the recycling agent percent by

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oaktrust.library.tamu

ii ABSTRACT Economic and environmental benefits motivate transportation agencies to increase the amount of reclaimed asphalt pavement (RAP) and recycled asphalt shingles (RAS) use

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‪Fawaz Kaseer‬ - ‪Google Scholar‬

Practical tools for optimizing recycled materials content and recycling agent dosage for improved short-and long-term performance of rejuvenated binder blends and mixtures. F Kaseer, LG Cucalon, E Arámbula-Mercado, AE Martin, J Epps. Journal of the Association of Asphalt Paving Technologists 87,

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