Comparison of asphalt binder and mixture cracking parameters

Rahbar-Rastegar, Reyhaneh; Daniel, Jo Sias; Reinke, Gerald

doi:10.1080/14680629.2017.1389071

Cited by 34 publications

(8 citation statements)

References 6 publications

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“…A finite element-based pavement structural modeling software, FlexPAVE TM (formerly known as LVECD) is used to model and predict the fatigue performance using the S-VECD model ( 24–26 ). The asphalt layer is divided into a mesh of 1,000 elements (100 × 10) to determine the critical response and damage calculations ( 27, 28 ). The DCC and the D R value are used by the software to calculate the damage factor (D F ) and determine the number of failed elements (defined as D F = 1).…”

Section: Test Results and Discussionmentioning

confidence: 99%

Evaluation of Laboratory Performance and Structural Contribution of Cold Recycled Versus Hot Mixed Intermediate and Base Course Asphalt Layers in New Hampshire

Nemati

Dave

Sias

et al. 2019

Transportation Research Record

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Depending on the local conditions and structural design of the pavement, multiple asphalt concrete layers including base, intermediate, and wearing courses are used. Typically, the base and intermediate layers have larger aggregate sizes and lower total asphalt binder contents as compared with the wearing course. Recently, cold recycled (CR) asphalt mixtures have gained attention as an alternative to the typical base, and to some extent intermediate courses, because of economic and environmental advantages. Challenges with CR include the potential high variability of recycled asphalt pavement (RAP) and lack of knowledge in relation to structural contribution and long-term performance of such layers. This study investigates four different types of CR and four hot mixed plant-produced asphalt mixtures (three intermediate courses and one base course) that are typical mixtures used in New Hampshire. The laboratory performance evaluation is conducted through the resilient modulus (Mr), complex modulus (E*), semi-circular bend and direct tension cyclic fatigue (S-VECD) tests. Pavement performance prediction is carried out using the results from S-VECD approach in the FlexPAVETM software. The test results indicate that the performance of CR is highly affected by the amount of oil distillate percentage in the emulsion as well as the amount of recovered binder in the RAP. While having a relatively lower rutting resistance capability, the CR mixtures maintained an acceptable fatigue performance. As compared with CR mixtures, hot mixed intermediate and base course mixtures indicated better rutting performance while having lower resistance to cracking.

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Section: Test Results and Discussionmentioning

confidence: 99%

Evaluation of Laboratory Performance and Structural Contribution of Cold Recycled Versus Hot Mixed Intermediate and Base Course Asphalt Layers in New Hampshire

Nemati

Dave

Sias

et al. 2019

Transportation Research Record

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“…Cracking in asphalt pavements is also affected by other (external) factors such as climate, traffic loads, and pavement structure. Changes in binder stiffness, ductility, and aging condition can significantly affect the cracking resistance of the corresponding asphalt mixture ( 1 , 2 ).…”

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confidence: 99%

“…The relationship between binder rheology and asphalt mixture performance is complicated and is still not completely understood. Many studies have evaluated the relationship between the binder and mixture properties as it relates to cracking performance ( 1 – 6 ). Various binder rheological indices have been developed in the past to evaluate the cracking potential of asphalt mixtures at intermediate and low temperatures.…”

mentioning

confidence: 99%

“…While developing the binder fatigue parameter ( |G*| × sin(δ)) as a criterion at intermediate temperatures in the SHRP program was a step forward at that time, it has subsequently been shown to be a poor surrogate for cracking performance of asphalt mixtures ( 1 , 4 , 9 ). One of the reasons is that this parameter was designed primarily to characterize virgin binders without recycled materials, recycling agents (rejuvenators), or any other type of additives.…”

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confidence: 99%

“…Rahbar-Rastegar et al compared asphalt binder and mixture cracking parameters for selected mixtures with RAP and RAS, and indicated a moderate correlation between ΔT c and the fracture energy from the disk-shaped compact tension (DCT) test ( 1 ). However, most binder rheological parameters (PG, G-R, and R-value) were not strongly correlated to mixture cracking parameters derived from mixture dynamic modulus.…”

mentioning

confidence: 99%

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Relationship between Rheological Indices and Cracking Performance of Virgin, Recycled, and Rejuvenated Asphalt Binders and Mixtures

Kaseer

Martin

Arámbula-Mercado³

2021

Transportation Research Record

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Long-term cracking performance of asphalt mixtures is heavily influenced by asphalt binder rheology, and changes in binder stiffness, ductility, and aging condition significantly affect the cracking resistance of the corresponding asphalt mixture. This study evaluated the effectiveness of several common and recently developed binder rheological indices in capturing the effects of binder performance grade (PG) and source, recycled binder content, recycling agent (rejuvenator) dose, and long-term aging. These binder rheological indices included the Superpave intermediate-temperature PG (PGI), the Glover-Rowe (G-R) parameter, the crossover temperature (Tδ = 45°), the rheological index (R-value), and ΔTc. This study also directly compared the binder rheological indices with the cracking performance of corresponding asphalt mixtures to explore possible correlations and their robustness. Asphalt mixture cracking performance was evaluated using the Illinois Flexibility Index Test (I-FIT) for intermediate-temperature cracking, and the disk-shaped compact tension (DCT) test and the uniaxial thermal stress and strain test (UTSST) for low-temperature cracking. Results indicated that all the binder rheological indices (except PGI) consistently captured the effects of binder blend composition and proportions and aging condition, with a few exceptions. Results also showed that the G-R parameter, the crossover temperature (Tδ = 45°), and ΔTc had the best correlation to asphalt mixture and field core cracking performance as compared with other rheological indices (PGI and R-value), with ΔTc demonstrating the overall best correlation to mixture cracking performance.

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Rheological Analysis of Performance Grade Rutting and Fatigue Cracking Criteria in Asphalt Binders

Pandey

Singh

Islam

et al. 2021

Int. J. Pavement Res. Technol.

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Comparison of asphalt binder and mixture cracking parameters

Cited by 34 publications

References 6 publications

Evaluation of Laboratory Performance and Structural Contribution of Cold Recycled Versus Hot Mixed Intermediate and Base Course Asphalt Layers in New Hampshire

Evaluation of Laboratory Performance and Structural Contribution of Cold Recycled Versus Hot Mixed Intermediate and Base Course Asphalt Layers in New Hampshire

Relationship between Rheological Indices and Cracking Performance of Virgin, Recycled, and Rejuvenated Asphalt Binders and Mixtures

Rheological Analysis of Performance Grade Rutting and Fatigue Cracking Criteria in Asphalt Binders

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