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approach for determination of maximum reclaimed asphalt

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Approach for Determination of Maximum Reclaimed

2020-5-26  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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Approach for Determination of Maximum Reclaimed

2020-5-26  Approach for Determination of Maximum Reclaimed Asphalt Pavement Content in Polymer-Modified Asphalt Mixture Bongsuk Park, Jian Zou, Reynaldo Roque, George Lopp, and Zhengyu Wu Transportation Research Record 2020 2674 : 6 , 420-430

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Back-calculation method for determining the maximum

2016-8-15  1. Introduction. The use of recyclable materials is currently encouraged and commonly accepted in the construction of road infrastructures for technical, economical, and environmental reasons , , .Specifically, Reclaimed Asphalt Pavement (RAP) has received significant support and attention both in Europe form road authorities and in US from departments of transportation with the aim of ...

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“Approach for Determination of Maximum Reclaimed Asphalt Pavement (RAP) Content in Polymer-Modified Asphalt (PMA) Mixture.” Transportation Research Record: Transportation Research Board, 2674 (6), 420-430. Park, B., Chun, S., and Han, S. (2019). “Application of Falling Weight Deflectometer (FWD) Data and Energy Ratio (ER) Approach for ...

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Jian ZOU University of Florida, FL UF ESSIE

Approach for Determination of Maximum Reclaimed Asphalt Pavement Content in Polymer-Modified Asphalt Mixture. Article. May 2020; Bongsuk Park. ... The energy ratio (ER) approach, capable of ...

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A novel approach for rational determination of warm mix ...

2019-3-10  A novel approach for rational determination of warm mix asphalt production temperatures. ... the possibility of incorporating high Reclaimed Asphalt Pavement ... BS EN 12697-5-2009-Bituminous Mixtures – Test Methods For Hot Mix Asphalt – Part 5: Determination of The Maximum Density. British Standards Institution, The United Kingdom (2009 ...

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Unlocking the Full Potential of Reclaimed Asphalt

2021-5-26  Reclaimed Asphalt Pavement (RAP) How the asphalt industry can contribute to a more green ... Wrong approach! • Saving natural resources (bitumen and mineral aggregates) Urban mining • Saving CO2emissions ... Determination of maximum RAP addition

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Performance-based design of 100% recycled hot-mix

The use of reclaimed asphalt pavement (RAP) and recycled asphalt shingles (RAS) can significantly reduce the increasing cost of hot-mix asphalt paving, conserve energy, and protect the environment.

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Identification and quantification of additives in ...

2021-8-6  Asphalt is principally very suitable for reuse due to the thermoplastic properties. Thus, reclaimed asphalt is reused at very high rates, e.g. approx. 82% in Germany, approx. 94% in the United States of America and even 100% in Finland (status 2019) . For reuse, the asphalt must meet different criteria, which refer in particular to the binder.

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ASTM International - Journal of Testing and Evaluation ...

A Novel Approach to Understanding Asphalt Binder Aging Behavior Using Asphaltene Proportion as a Performance Indicator. ... Laboratory Study to Evaluate the Influence of Reclaimed Asphalt Content on Performance of Recycled Porous Asphalt. ... Nuclear-Free Determination of Asphalt Content and Gradation of Hot-Mix Asphalt Concrete.

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METHOD OF TEST FOR DETERMINATION OF AMOUNT

6.1 Specifications contain permitted limits on the maximum amount of asphalt-coated particles in granular materials. For example, Ontario Provincial Standard Specification 1010 allows a maximum of 30% asphalt-coated particles in granulars. In some cases, the amount of reclaimed asphalt pavement (RAP) may be required by special provision.

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Unlocking the Full Potential of Reclaimed Asphalt

2021-5-26  Reclaimed Asphalt Pavement (RAP) How the asphalt industry can contribute to a more green ... Wrong approach! • Saving natural resources (bitumen and mineral aggregates) Urban mining • Saving CO2emissions ... Determination of maximum RAP addition

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A novel back-calculation approach for determining the ...

2016-3-13  A novel back-calculation approach for determining the rheological properties of RAP binder. The determination of the rheological properties of the aged binder in Reclaimed Asphalt Pavement (RAP) materials is a challenging problem. Conventionally, extraction and recovery are used to obtain the RAP binder for further experimental characterisation ...

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(PDF) Use of Impact Resonance Test for Determination of ...

An approach is proposed for determination of binder properties through nondestructive testing of laboratory compacted mix specimens with RAP and binders with known engineering properties.

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ASTM International - Journal of Testing and Evaluation ...

A Novel Approach to Understanding Asphalt Binder Aging Behavior Using Asphaltene Proportion as a Performance Indicator. ... Laboratory Study to Evaluate the Influence of Reclaimed Asphalt Content on Performance of Recycled Porous Asphalt. ... Nuclear-Free Determination of Asphalt Content and Gradation of Hot-Mix Asphalt Concrete.

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Evaluation of the Minnesota Asphalt Mixtures Based on ...

The four asphalt mixtures were tested at three different asphalt binder contents each: A C V, A C V + 0.5 %, and A C V − 0.5 %. Three different cracking tests and one rutting test were performed for evaluation and determination of the allowable tolerance of asphalt binder content (AC) in each asphalt mixture.

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EVALUATION OF RECYCLED PROJECTS FOR

2005-4-12  for mixtures utilizing up to 20 percent reclaimed material and an AC-10 grade asphalt cement would be required for reclaimed materials between 20 and 30 percent. Upon implementation of these specifications, a further restriction was placed on wearing course mixes limiting the maximum allowable reclaimed asphaltic concrete to 15 percent.

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Potential Use and Applications for Reclaimed Millings

2015-8-11  Table 3 Required Reclaimed Millings for Different Specimen Heights . Specimen Height Required Reclaimed Aggregates (g) 19 𝑚𝑚𝑚𝑚 (3/4") 670 37.5 mm (1.5") 1340 . Table 4 Summary of Batch 1 Results for Determination of Number of Required Replicates . Water (%) Emulsion (%) IDT Strength (kPa) 𝐼𝐼𝐼𝐼𝐼𝐼 Bulk Specific Gravity

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Laboratory evaluation of cold in-place recycling asphalt ...

2021-7-30  an existing asphalt pavement surface layer, processing millings through particle size screening and reduction; introduction of a binding material (i.e., asphalt emulsion or foamed asphalt); and introduction of additional aggregates (i.e. virgin aggregates) if necessary. Finally, the cold recycled asphalt mix is placed and compacted using standard

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Analytical approach for the mix design optimisation of ...

2018-1-25  An analytical approach to quantifying the recovered deformation of crumb rubber in the post-compaction phase has been developed in order to adjust the number of gyrations proposed by the Superpave method for compacting specimens of hot mix asphalt using a Superpave gyratory compactor. The maximum allowable amount of rubber has been calculated.

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METHOD OF TEST FOR DETERMINATION OF AMOUNT

6.1 Specifications contain permitted limits on the maximum amount of asphalt-coated particles in granular materials. For example, Ontario Provincial Standard Specification 1010 allows a maximum of 30% asphalt-coated particles in granulars. In some cases, the amount of reclaimed asphalt pavement (RAP) may be required by special provision.

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Determination of Aggregate Bulk (Dry) Specific Gravity ...

2007-5-1  Aggregate Bulk (Dry) Specific Gravity (Gsb) of Reclaimed Asphalt Pavement (RAP) and Reclaimed Asphalt Shingles (RAS) Appendix B.21 (continued) Effective: May 1, 2007 Revised: April 12, 2017 April 12, 2017 Manual of Test Procedures for Materials Page B.103 Appendix B.21 g) Calculate the individual Gmm values. The average result will be used in the

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Evaluation of the Minnesota Asphalt Mixtures Based on ...

The four asphalt mixtures were tested at three different asphalt binder contents each: A C V, A C V + 0.5 %, and A C V − 0.5 %. Three different cracking tests and one rutting test were performed for evaluation and determination of the allowable tolerance of asphalt binder content (AC) in each asphalt mixture.

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15866 Lynn spine = 5/32” NCHRP Green NCHRP PROGRAM

This is a technician’s manual for use of reclaimed asphalt pavement (RAP) in Superpave®-designed hot-mix asphalt (HMA). It will be of particular interest to mate-rials engineers in state highway agencies and to contractor personnel responsible for designing HMA according to the current Superpave method.

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Characterization of Recla imed Asphalt Pavement and

2021-2-9  Reclaimed Asphalt Pavement (RAP) is a material obtained by dredging pavement with the Cold Milling Method. The use of the reclaimed asphalt pavement is improved year after year. With the use of RAP which reduces the degradation of natural resources, it is important to study this material to allow for optimum use of RAP [12].

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SERIES 900 ROAD PAVEMENTS – BITUMINOUS BOUND

2021-7-28  902 (05/18) Reclaimed Asphalt 1 (05/18) The requirements of this clause apply to all bituminous mixtures containing reclaimed asphalt. 2 (05/18) Reclaimed asphalt may be used in the production of bituminous surface course, binder course, regulating course and base. Unless otherwise specified in contract specific Appendix 7/1, the use of reclaimed

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Analytical approach for the mix design optimisation of ...

2018-1-25  An analytical approach to quantifying the recovered deformation of crumb rubber in the post-compaction phase has been developed in order to adjust the number of gyrations proposed by the Superpave method for compacting specimens of hot mix asphalt using a Superpave gyratory compactor. The maximum allowable amount of rubber has been calculated.

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Determination of the Voids in the Mineral Aggregate

determination and related subjects, refer to the Asphalt Institute publication MS-4. 3.4 When hydrated lime is used in the mix, the Gsb value for the lime shall be 2.38. 4.1 Report the following information: NOTE 2: Each VMA shall be considered an according to Appendix I.

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Potential Use and Applications for Reclaimed Millings

2015-8-11  Table 3 Required Reclaimed Millings for Different Specimen Heights . Specimen Height Required Reclaimed Aggregates (g) 19 𝑚𝑚𝑚𝑚 (3/4") 670 37.5 mm (1.5") 1340 . Table 4 Summary of Batch 1 Results for Determination of Number of Required Replicates . Water (%) Emulsion (%) IDT Strength (kPa) 𝐼𝐼𝐼𝐼𝐼𝐼 Bulk Specific Gravity

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Laboratory evaluation of cold in-place recycling asphalt ...

2021-7-30  an existing asphalt pavement surface layer, processing millings through particle size screening and reduction; introduction of a binding material (i.e., asphalt emulsion or foamed asphalt); and introduction of additional aggregates (i.e. virgin aggregates) if necessary. Finally, the cold recycled asphalt mix is placed and compacted using standard

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