Fracture properties of reclaimed asphalt pavement mixtures

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Fracture properties of reclaimed asphalt pavement mixtures

Fracture properties of reclaimed asphalt pavement

Oct 30, 2020 Reclaimed asphalt pavement (RAP) technology has been extensively promoted to conserve depleting virgin materials for asphalt mixtures. High RAP content is desirable from economic and environmental standpoints. However, RAP mixtures become too stiff and require modification such as rejuvenator.

Fracture properties of reclaimed asphalt pavement

The addition of RAP to the WMA mixture increases the fracture energy under pure mode I, mixed mode I/II, and pure mode II. The increase of fracture energy by addition of the RAP materials to the...

Fracture investigation of asphalt mixtures containing ...

Aug 01, 2021 Fracture behaviors of asphalt mixtures with 100% RAP (reclaimed asphalt pavement) were investigated. • Rejuvenator improved the fracture resistance of the mixtures at low and intermediate temperatures. • An equivalent stress intensity factor was employed based on the energy method. •

(PDF) Properties of Asphalt Mixtures Using Reclaimed ...

The data gained in the material laboratory testing were [3] A. Liphardt and P. Radziszewski, “Analysis of viscoelastic properties of binders recovered from bituminous mixtures used in a case study, and the conclusions are presented as containing addition of reclaimed asphalt pavement,” Roads follows: and Bridges-Drogi i Mosty, vol. 18, no ...

Effect of reclaimed asphalt pavement ... -

The complex dynamic modulus was performed on all mixtures at different temperatures and frequencies, and semicircular bend (SCB) fracture testing was performed for all mixtures at three low temperatures. Experimental results indicate that asphalt mixtures containing RAP have higher dynamic modulus values than the control mixtures containing no RAP.

Investigation of the properties of asphalt mixtures ...

Jun 15, 2016 The results indicated that the asphalt mixture incorporating reclaimed SBS modified asphalt pavement with better moisture susceptibility, rutting resistance, dynamic modulus, low temperature anti cracking performance and fatigue resistance was obtained by blending new SBS modified asphalt binder and rejuvenating agent.

Evaluation of pure and mixed modes (I/III) fracture ...

Jul 30, 2018 The results of this research indicate that the reclaimed asphalt pavement decreases the fracture toughness of the concrete mixture in pure and mixed modes (I/III). Meanwhile, the results show that by decreasing the temperature, the fracture toughness of the concrete mixtures containing reclaimed asphalt pavement increases. Graphical abstract

Fracture Characterization of Asphalt Mixtures with High ...

Jan 01, 2016 Using reclaimed and recycled materials in asphalt mixtures is one of the most commonly used sustainable strategies, which results in cost savings and environmental benefits because they replace virgin materials.

Artificially prepared Reclaimed Asphalt Pavement

Jul 24, 2019 高达12%返现 In this paper, the possibility of using different amounts of re-recycled (repeated recycled) Reclaimed Asphalt Pavement (RAP) in the asphalt mixture was experimentally investigated. First, a single virgin mixture was prepared and artificially aged to simulate the first generation of RAP to be used for designing the first generation of recycled

Experimental evaluation and recyclability potential of ...

Recently, some studies have analyzed the performance of hot mix asphalt incorporating reclaimed asphalt pavement (RAP), warm mix asphalt additives, rejuvenators and even fibers as a reinforcement , , , , . However, few research efforts have been made in the evaluation of the recyclability potential of FRAC mixtures.

Fracture characterization of asphalt mixtures with ...

The use of recycled asphalt pavement (RAP) in hot-mix asphalt leads to significant environmental and economical benefits. The major benefits are realized through reduced demand for new or virgin aggregates and asphalt binders. ... The test results indicate significant reduction in the fracture energy of asphalt mixtures with 30% RAP and no ...

(PDF) Properties of Asphalt Mixtures Using Reclaimed ...

The data gained in the material laboratory testing were [3] A. Liphardt and P. Radziszewski, “Analysis of viscoelastic properties of binders recovered from bituminous mixtures used in a case study, and the conclusions are presented as containing addition of reclaimed asphalt pavement,” Roads follows: and Bridges-Drogi i Mosty, vol. 18, no ...

Fatigue and fracture properties of aged binders in the ...

Fatigue and fracture properties of aged binders in the context of reclaimed asphalt mixes. ... reduces the waste produced from milling and removing the asphalt pavement layers at the end of their service life, but also reduces the amount of asphalt required for the construction of new roadways. ... increasing the allowable percentage of RAP in ...

Effect of reclaimed asphalt pavement ... - [email protected]

This paper investigates the effect of RAP percentage and sources on the properties of asphalt mixtures. Ten asphalt mixtures, including two different RAP sources, three RAP content percentages (0%, 20%, 40%), and two different asphalt binders (PG 58-28 and PG 58-34) were investigated in this study.

Effect of Reclaimed Asphalt Pavement ... - SAGE Journals

Jan 01, 2008 This paper investigates the effect of RAP percentage and sources on the properties of asphalt mixtures. Ten asphalt mixtures, including two different RAP sources, three RAP content percentages (0%, 20%, 40%), and two different asphalt binders (PG 58-28 and PG 58-34) were investigated in this study.

Fracture Characterization of Asphalt Mixtures with High ...

Jan 01, 2016 Mechanistic and Volumetric Properties of Asphalt Mixtures with Recycled Asphalt Pavement. In Transportation Research Record: Journal of the Transportation Research Board, No. 1929, Transportation Research Board of the National Academies, Washington, D.C., 2005, pp. 28 – 36. Google Scholar Crossref

Experimental assessment and modeling of fracture and ...

Nov 20, 2021 In this research, the fracture and fatigue resistance of short and long-term aged hot and warm mix (HMA and WMA) stone matrix asphalt (SMA) mixtures containing 0%, 30%, 40%, and 50% RAP materials were investigated using semi-circular bending (SCB) and four-point beam fatigue (4 PB) test methods. It is further noted that three temperatures (− 20 °C, 0 °C,

Artificially prepared Reclaimed Asphalt Pavement (RAP)—an ...

Jul 24, 2019 In this paper, the possibility of using different amounts of re-recycled (repeated recycled) Reclaimed Asphalt Pavement (RAP) in the asphalt mixture was experimentally investigated. First, a single virgin mixture was prepared and artificially aged to simulate the first generation of RAP to be used for designing the first generation of recycled mixtures. Next,

Effect of marshal and gyratory compaction methods on ...

Dec 08, 2021 In addition, fracture toughness testing of asphalt mixtures containing recycled asphalt pavement (RAP) materials was also a part of test plan and experimental program of the current research. However, the mix design and optimum percentage of modified asphalt mixture with RAP content differed from the un-modified and control HMA mixture.

USE OF SEMI-CIRCULAR BEND TEST TO CHARACTERIZE

Then, the test was used to study fracture behavior of a wide range of asphalt paving materials including, but not limited to, various virgin asphalt mixes, crumb rubber modified (CRM) asphalt mixes, asphalt mixes with recycled materials such as reclaimed asphalt pavement (RAP), and recycled asphalt shingles (RAS), together with

"Evaluation of Mixtures and Pavement Performance for ...

Pavement rehabilitation practice involves milling an asphalt surface and placing a new layer. The incorporation of reclaimed asphalt pavement (RAP) mixtures brings cost savings and preserves the environment and natural resources. However, the use of recycled materials can compromise pavement performance, in particular, RAP can contribute to cracking because

Afshar A. YOUSEFI Master of Science in Civil Engineering ...

This paper deals with the fracture toughness of three different asphalt mixtures of HMA (Hot Mix Asphalt), WMA (Warm Mix Asphalt) and WMA-RAP (i.e. mixture of WMA and reclaimed asphalt pavement).

Publications MAPIL - University of Missouri

Jan 19, 2021 The sections contain a wide range of reclaimed asphalt pavement (RAP) and recycled asphalt shingles (RAS), and different types of additives. The large number of sections investigated and the associated breadth of asphalt mixtures tested provided a robust data set to

Afshar A. Yousefi, M.Sc. - Reviewer, Journal of ... - LinkedIn

Study on the effect of using reclaimed asphalt pavement and rejuvenator on the fracture behavior of warm mix asphalt ... 2020 See publication. The effects of Gilsonite and Sasobit on the mechanical properties and durability of asphalt mixtures ... Evaluation of the effect of loading rate of Semicircular Bending test on different fracture ...

(PDF) Properties of Asphalt Mixtures Using Reclaimed ...

The data gained in the material laboratory testing were [3] A. Liphardt and P. Radziszewski, “Analysis of viscoelastic properties of binders recovered from bituminous mixtures used in a case study, and the conclusions are presented as containing addition of reclaimed asphalt pavement,” Roads follows: and Bridges-Drogi i Mosty, vol. 18, no ...

Fracture characterization of asphalt mixtures with high ...

Fracture testing results indicate a consistent trend at intermediate temperatures using both fracture energy and the FI. The discrimination potential and sensitivity of the FI to even small changes in the mix design properties enable integration of the IL-SCB test method and FI as a performance quality indicator.

Influence of Mixture Properties on Fracture Mechanisms in ...

Sep 19, 2011 (2010). Influence of Mixture Properties on Fracture Mechanisms in Asphalt Mixtures. Road Materials and Pavement Design: Vol. 11, SPECIAL ISSUE ON ASPHALT TECHNOLOGY (EATA 2010), pp. 61-88.

USE OF SEMI-CIRCULAR BEND TEST TO CHARACTERIZE

Then, the test was used to study fracture behavior of a wide range of asphalt paving materials including, but not limited to, various virgin asphalt mixes, crumb rubber modified (CRM) asphalt mixes, asphalt mixes with recycled materials such as reclaimed asphalt pavement (RAP), and recycled asphalt shingles (RAS), together with

Experimental assessment and modeling of fracture and ...

Nov 20, 2021 In this research, the fracture and fatigue resistance of short and long-term aged hot and warm mix (HMA and WMA) stone matrix asphalt (SMA) mixtures containing 0%, 30%, 40%, and 50% RAP materials were investigated using semi-circular bending (SCB) and four-point beam fatigue (4 PB) test methods. It is further noted that three temperatures (− 20 °C, 0 °C,

Recycled Asphalt Pavement: Study for High-RAP Asphalt ...

Semicircular bend fracture testing showed that the addition of RAP lowered the - fracture energy and increased the fracture toughness of the mixtures, and the highest RAP contents had the most reduced fracture performance. 17. Document Analysis/Descriptors 18. Availability Statement Recycled Asphalt Pavement (RAP), Recycled materials, Binder

Investigation of viscoelastic fracture fields in asphalt ...

Jan 27, 2017 Newcomb D, Stroup-Gardiner M, Weikle B, Drescher A (1993) Influence of roofing shingles on asphalt concrete mixture properties. Report 93/09 Submitted to Minnesota Department of Transportation, Office of Research Administration. Osman MO (2014) Special provision for reclaimed asphalt pavement (RAP) and reclaimed asphalt shingles (RAS).

Effect of marshal and gyratory compaction methods on ...

Dec 08, 2021 In addition, fracture toughness testing of asphalt mixtures containing recycled asphalt pavement (RAP) materials was also a part of test plan and experimental program of the current research. However, the mix design and optimum percentage of modified asphalt mixture with RAP content differed from the un-modified and control HMA mixture.

Investigation of Blending Mechanisms for Reclaimed Asphalt ...

Jan 01, 2016 Effect of Reclaimed Asphalt Pavement (Proportion and Type) and Binder Grade on Asphalt Mixtures. In Transportation Research Record: Journal of the Transportation Research Board, No. 2051, Transportation Research Board of the National Academies , Washington, D.C. , 2008 , pp. 90 – 97 .

Relationships among Chemistry, Rheology, and Fracture ...

Aug 17, 2020 Because of limited amounts of natural resources, reclaimed asphalt pavement (RAP) has gained popularity in the asphalt pavement industry to meet sustainability requirements in asphalt pavement. Concerns have been raised in relation to the intermediate temperature cracking performance of asphalt mixtures containing RAP.

Low-temperature performance characterization of ...

The sustainability movement in paving materials has led to the increased use of reclaimed asphalt pavement (RAP). ... and acoustic emission (AE) tests were employed to characterize low-temperature properties of the asphalt mixtures. BMB mixtures exhibited higher DC(T) fracture energies than HMA at all RAP levels. ... BMB mixture fracture energy ...

Evaluation of Mixtures and Pavement Performance for ...

Sep 15, 2020 However, the use of recycled materials can compromise pavement performance, in particular, RAP can contribute to cracking because the mixtures with recycled materials become more brittle. In Nebraska, pavement rehabilitation has mostly been conducted by milling old 4-in. asphalt surface and placing a new 4-in. layer.

Evaluation of Portland Cement Concrete Containing ...

Jan 10, 2018 The mechanical properties and durability of the RAP-PCC were tested through an extensive experimental program, followed by sufficient discussions of the results. An effective method using the total asphalt volumetric fraction to determine the optimum RAP replacement level in a RAP-PCC mixture was developed.

IDEALS @ Illinois: Effect of specimen geometry and test ...

However, recycled materials such as reclaimed asphalt pavement (RAP) and recycled asphalt shingles (RAS) have resulted in asphalt mixtures prone to early cracking. In addition, Superpave volumetric design requirements are no longer sufficient to design asphalt mixtures because of the inconsistent properties of RAP or RAS.