Characterizing rheological behavior of asphalt binder over a complete range of pavement service loading frequency and temperature

Sun, Yiren; Huang, Baoshan; Chen, Jingyun; Jia, Xiaoyang; Ding, Yongjie

doi:10.1016/j.conbuildmat.2016.07.047

Cited by 41 publications

(17 citation statements)

References 28 publications

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“…28 The corresponding LVE master curves have been utilized for pavement response analysis and performance assessment. 29 The master curves of the TLA and TPB materials showing the variation of the rheological properties G* and δ at 60°C are depicted in Figures 3 and 4, respectively.…”

Section: Resultsmentioning

confidence: 99%

Utilization of coir fibre as an asphalt modifier

Maharaj

Ali

Ramlochan

et al. 2019

Progress in Rubber, Plastics and Recycling Technology

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The influence of added coir (coconut) fibre of various lengths (from 2.5 mm to 10 mm) and dosages (up to 8 wt%) on the rheological properties of Trinidad Lake Asphalt (TLA) and Trinidad Petroleum Bitumen (TPB) was evaluated by measuring changes in the phase angle, δ (measure of the elasticity) and the complex modulus, G* (measure of the degree of stiffness). Results indicated that for both TLA and TPB, the highest values of G* (stiffest) and the lowest values of δ (most elastic) were observed for blends containing 2.5-mm coir fibre lengths for added coir concentrations of 6% and 8%, respectively. When compared to the unmodified TLA, the addition of 6 wt% of 2.5-mm coir fibre resulted in the largest significant increase in G* (7.3 times) as well as a significant decrease in δ (from 49.3° to 19.8°), representing a significant stiffening and increased elasticity of the modified blend. For TPB, the optimum concentration of added coir fibre occurred after the addition of 6 wt% of the 2.5-mm coir fibre, which resulted in the largest significant increase in G* of 5.4 times (stiffening) as well as a significant decrease in δ from 86.2° to 47.4° (increased elasticity as the material transformed from an almost viscous liquid to a semi-elastic solid) when compared to the unmodified pure TPB. The utilization of coir fibre for the rheological enhancement of Trinidad asphaltic materials can also provide an environmentally attractive option for solving the waste disposal issues associated with the dumping of waste coconut husk.

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Section: Resultsmentioning

confidence: 99%

Utilization of coir fibre as an asphalt modifier

Maharaj

Ali

Ramlochan

et al. 2019

Progress in Rubber, Plastics and Recycling Technology

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“…According to the coefficients of the generalized Maxwell model, the storage modulus

and the loss modulus

can be calculated by Equations (15) and (16), respectively [ 16 , 28 , 29 ]:

…”

Section: Methodsmentioning

confidence: 99%

“…According to the coefficients of the generalized Maxwell model, the storage modulus G and the loss modulus G can be calculated by Equations ( 15) and ( 16), respectively [16,28,29]: 10 °C, 20 °C, 30 °C, 40 °C, and 50 °C was tested and calculated, and shown in Figure 2. As shown in Figure 2, at the initial stage of loa ance of OGFC grows rapidly with the loading time; when the load 500 s, the creep compliance of OGFC grows gently, showing a nea It can also be found from Figure 2 that the creep compliance of O cantly with the increase in test temperature.…”

Section: Interconversion Between Dynamic Modulus and Relaxationmentioning

confidence: 99%

Comparative Analysis of Viscoelastic Properties of Open Graded Friction Course under Dynamic and Static Loads

Cheng

et al. 2021

Polymers

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The viscoelastic properties of open graded friction course (OGFC) are closely related to anti-permanent deformation ability, noise reduction ability and durability. To study the viscoelastic parameters of OGFC under dynamic and static loads and to establish the functional relationship between them, uniaxial compression creep tests and dynamic modulus tests were performed to obtain the creep compliance and the dynamic modulus of OGFC. In addition, the Burgers model, modified Burgers model, second-order extensive Maxwell model, Scott-Blair model and modified Sigmoid model were employed to quantitatively analyze the dynamic and static viscoelastic properties of OGFC. Subsequently, the relaxation modulus of OGFC was deduced by the viscoelastic theory. Then, the dynamic modulus of OGFC was calculated according to the deduced relaxation modulus. Based on the calculated values and the measured values of dynamic modulus, the functional relationship of viscoelastic parameters of OGFC under dynamic and static loads was established. The results show that the increase in test temperature has adverse effects on the viscoelastic indexes of OGFC, such as creep compliance, relaxation modulus, and dynamic modulus; the dynamic modulus derived from static creep compliance has a good linear correlation with that obtained by dynamic modulus tests, but the correlation of the phase angle is poor.

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“…Using the timetemperature superposition principle, the results were shifted to a reference temperature of 28°C to conduct master curves of complex modulus and phase angle. is paper utilized the 2S2P1D model to fit the master curves describing the rheological properties of asphalt binders [29][30][31]. As shown in Figure 1, the 2S2P1D model consists of two springs, two parabolic creep elements, and one dashpot with 7 parameters, which can be determined using the following formulation:…”

Section: Frequency Sweep Testmentioning

confidence: 99%

Research on Rheological Properties of High‐Percentage Artificial RAP Binder with WMA Additives

Wang

Huang

Qin

et al. 2020

Advances in Materials Science and Engineering

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With the development of pavement recycling technology, the requirement of reclaimed asphalt pavement (RAP) is substantially increasing. Warm-mix recycled asphalt (WMRA) technology has made great progress, which can effectively decrease the working temperature and improve the RAP content. In this study, the rheological properties of recycled binders with incorporation of high-percentage artificial RAP binder (30–70%) were evaluated using two types of warm-mix asphalt (WMA) additives, i.e., polyethylene wax R and surfactant M. The dynamic shear rheometer (DSR) and beam bending rheometer (BBR) tests were conducted on the recycled binders. The results showed that the temperature and frequency played an important role in determining the complex shear modulus of the high-percentage WMRA binders. The dependency of phase angle on frequency increased after the long-term aging. The WMA additive R had a relatively huge impact on the rheological properties of asphalt, which mainly occurred before the PAV aging of recycled asphalt binder; the WMA additive M had no significant impact on the rheological properties of recycled asphalt binder. The WMA additive R enhanced the low-temperature rheology of recycled asphalt binder, while the WMA additive M enhanced the high-temperature rheology of recycled asphalt binder. Both of these types of WMA additives improved the antifatigue performance of recycled asphalt binder. The increased content of RAP binder improved the high-temperature performance and reduced the low-temperature performance of the recycled asphalt binder. However, it had no obvious impact on the fatigue performance. In addition, there was a good linear relation between the RAP binder content and the two indexes of the multiple stress creep recovery (MSCR) test.

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Characterizing rheological behavior of asphalt binder over a complete range of pavement service loading frequency and temperature

Cited by 41 publications

References 28 publications

Utilization of coir fibre as an asphalt modifier

Utilization of coir fibre as an asphalt modifier

Comparative Analysis of Viscoelastic Properties of Open Graded Friction Course under Dynamic and Static Loads

Research on Rheological Properties of High‐Percentage Artificial RAP Binder with WMA Additives

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