Effects of aging on asphalt mixture and pavement performance

Saleh, Nooralhuda F.; Keshavarzi, Behrooz; Rad, Farhad Yousefi; Mocelin, Douglas Martins; Elwardany, Michael D.; Castorena, Cassie; Underwood, B. Shane; Kim, Youngsoo Richard

doi:10.1016/j.conbuildmat.2020.120309

Cited by 46 publications

(12 citation statements)

References 12 publications

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“…Comparisons between short- (2 h, 135°C) and long-term (5 d, 85°C on compacted specimens) oven-aged mixtures were also shown, further confirming the sensitivity of |E*| and δ. The sensitivity of |E*| and δ on aging is further demonstrated in Saleh et al ( 23 ), where impacts were assessed at numerous points between 4 and 21 d of loose mixture aging at 95°C. Given recent results highlighting the relevance of the phase angle in the denominator of LVE indices, | E * | sin ( δ ) will be evaluated in this paper ( 24 ).…”

Section: Literature Reviewmentioning

confidence: 82%

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Evaluating the Sensitivity of Intermediate Temperature Performance Tests to Multiple Loose Mixture Aging Conditions Using the FHWA Accelerated Loading Facility’s RAP/RAS Experiment

Mensching

Elwardany

Veginati

2022

Transportation Research Record: Journal of the Transportation R

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With the advancement of Balanced Mixture Design (BMD), laboratory performance tests for asphalt materials are being assessed for their relation to cracking performance in the field. However, most BMD applications do not account for long-term aging. This gap limits the appropriateness of thresholds and the potential of BMD to improve pavement performance as more amounts of the additives and reclaimed materials available can behave in drastically different fashions between early, intermediate, and late stages of service. In this study, five mixtures with documented field performance from the Federal Highway Administration’s Accelerated Loading Facility were subjected to long-term oven aging (LTOA) protocols. In addition to reheating loose mixtures containing reclaimed asphalt pavement and shingles, the two LTOA methods were 8 h at 135°C and 3 d at 95°C. The objective of this paper is to compare aging approaches, particularly whether equivalence between long-term aged procedures exists, and to highlight the sensitivity (or lack thereof) of common laboratory mixture performance tests. The Indirect Tensile Cracking (IDEAL-CT), Illinois Flexibility Index, Asphalt Mixture Performance Tester cyclic fatigue, and dynamic modulus tests were employed. The results show a collapse in mixture cracking indices when LTOA is incorporated, raising concerns over BMD implementation using criteria established exclusively with short-term oven aging. Use of [Formula: see text] presented a universal and logic shift in response from the reheated to LTOA state, affirming utility as an aging index. Blending insights can possibly be gleaned from the data, although 95 and 135°C LTOA procedures yield mostly equivalent linear viscoelastic and cracking indices.

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Section: Literature Reviewmentioning

confidence: 82%

“…These data were later used in an effort to establish global thresholds for the index across 105 different mixtures. The S app index is sensitive to changes with loose mixture aging ( 18 , 23 , 35 ).…”

Section: Literature Reviewmentioning

confidence: 99%

Evaluating the Sensitivity of Intermediate Temperature Performance Tests to Multiple Loose Mixture Aging Conditions Using the FHWA Accelerated Loading Facility’s RAP/RAS Experiment

Mensching

Elwardany

Veginati

2022

Transportation Research Record: Journal of the Transportation R

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“…It can also better transfer the load generated by vehicles [1][2][3]. However, due to the short-term aging effect of the asphalt mixture in the mixing, transportation and paving process, and the long-term and ultra-long-term aging effect in the process of use after completion and opening to traffic [4][5][6][7][8]. Therefore, aging has gradually become one of the main causes of asphalt pavement cracks, loosening, potholes and other diseases [9,10].…”

Section: Introductionmentioning

confidence: 99%

Effect of aging on low-temperature crack resistance and water stability of polyester fiber asphalt mixture

Niu

Chen

2022

Mater. Res. Express

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In order to study the influence of different aging conditions on the low-temperature crack resistance and water stability of polyester fiber asphalt mixture. Prepare standard Marshall specimens of asphalt mixture with 0.4 % polyester fiber doping, and carry out water immersion Marshall test and low temperature splitting test through indoor asphalt mortar aging, asphalt mixture short-term aging and long-term aging. The results show that: under the three aging conditions, when the water immersion and low temperature time are fixed, with the increase of the aging degree, the water stability and low temperature crack resistance of the asphalt mixture decrease. When the immersion time is 2 h, the stability of asphalt mortar aging and short-term aging decreases by 6.0% and 11.8%, respectively, compared with unaging, but the long-term aging is only 3.6% lower than the short-term aging. When the temperature is -5℃, the split tensile strength of asphalt mortar aged and short-term aged increases by 4.24% and 14.35%, respectively, compared with unaging, while long-term aging only increases 4.18% compared with short-term aging. This indicates that the short-term aging condition has the most significant effect on the water stability and low-temperature crack resistance of polyester fiber asphalt mixes. At the same time, this study established a regression equation between the test temperature and the low temperature evaluation index through quadratic fitting (the correlation coefficient is 0.960-0.998), and the regression relationship can be used to estimate the low temperature evaluation index at different test temperatures.

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“…Considerable efforts have been focused on evaluating the ageing behavior of bitumen and asphalt mixtures (5)(6)(7)(8)(9). However, most existing studies used laboratory ageing methods such as the rolling thin film oven (RTFO) test and pressure ageing vessel (PAV) test to simulate the short-term and long-term ageing of bitumen in the field.…”

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confidence: 99%

Experimental and Statistical Analysis of Bitumen’s Field Ageing in Asphalt Pavements

Zhang

Soenen

Carbonneau³

et al. 2022

Transportation Research Record: Journal of the Transportation R

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Field ageing gradients of bitumen samples recovered from 14 asphalt road sections were investigated via rheological and chemical characterizations and statistical analysis. The effects of air voids and environmental factors on the ageing gradient were evaluated using the field ageing and climate data. The effectiveness of the pressure ageing vessel (PAV) test was assessed in accelerating the bitumen’s long-term ageing by comparing with the field ageing data. Critical factors for field ageing were identified using statistical methods. A statistical model for the Glover-Rowe (G-R) parameter was formulated and verified by incorporating the screened key factors. Results indicate that a threshold air void content (around 6%) exists in differentiating the field ageing gradient patterns in the asphalt pavements. An increasing tendency is observed between the ageing gradient and annual days below 0°C. The chemical indices, stiffness-related indices, and G-R parameter can quantify the field ageing gradient of asphalt pavements. The PAV test can condition the bottom slices’ bitumen to the same ageing level as that in a pavement depth of 0.5–2 cm after 8 years’ field service. Pavement service life, binder content, minimum temperature, days above 32°C, and days below 0°C are the critical material and environmental factors that significantly affect bitumen’s complex shear modulus, crossover frequency, G-R parameter, and Δ Tc. The statistical model is verified with an acceptable mean absolute error of 28.1% and a R2 value of 0.95.

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Effects of aging on asphalt mixture and pavement performance

Cited by 46 publications

References 12 publications

Evaluating the Sensitivity of Intermediate Temperature Performance Tests to Multiple Loose Mixture Aging Conditions Using the FHWA Accelerated Loading Facility’s RAP/RAS Experiment

Evaluating the Sensitivity of Intermediate Temperature Performance Tests to Multiple Loose Mixture Aging Conditions Using the FHWA Accelerated Loading Facility’s RAP/RAS Experiment

Effect of aging on low-temperature crack resistance and water stability of polyester fiber asphalt mixture

Experimental and Statistical Analysis of Bitumen’s Field Ageing in Asphalt Pavements

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