Effect of corn and soybean oil derived additives on polymer-modified HMA and WMA master curve construction and dynamic modulus performance

Podolsky, Joseph H.; Williams, Anna; Cochran, Eric W.

doi:10.1016/j.ijprt.2018.01.002

Cited by 24 publications

(14 citation statements)

References 14 publications

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“…Extensive research [34][35][36][37] shows that the dynamic modulus is close to maximum modulus value as the loading frequency increases to infinity and close to a limiting equilibrium value as the loading frequency approaches zero. Sigmoidal function and the generalized sigmoidal function can simulate the above characteristics of asphalt mixtures very well, called the SM and GSM, respectively.…”

Section: Master Curve Model Of the Dynamic Modulusmentioning

confidence: 99%

Predict the Phase Angle Master Curve and Study the Viscoelastic Properties of Warm Mix Crumb Rubber-Modified Asphalt Mixture

Zhang

Wang

et al. 2020

Materials

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To identify the most accurate approach for constructing of the dynamic modulus master curves for warm mix crumb rubber modified asphalt mixtures and assess the feasibility of predicting the phase angle master curves from the dynamic modulus ones. The SM (Sigmoidal model) and GSM (generalized sigmoidal model) were utilized to construct the dynamic modulus master curve, respectively. Subsequently, the master curve of phase angle could be predicted from the master curve of dynamic modulus in term of the K-K (Kramers–Kronig) relations. The results show that both SM and GSM can predict the dynamic modulus very well, except that the GSM shows a slightly higher correlation coefficient than SM. Therefore, it is recommended to construct the dynamic modulus master curve using GSM and obtain the corresponding phase angle master curve in term of the K-K relations. The Black space diagram and Wicket diagram were utilized to verify the predictions were consistent with the LVE (linear viscoelastic) theory. Then the master curve of storage modulus and loss modulus were also obtained. Finally, the creep compliance and relaxation modulus can be used to represent the creep and relaxation properties of warm-mix crumb rubber-modified asphalt mixtures.

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Section: Master Curve Model Of the Dynamic Modulusmentioning

confidence: 99%

Predict the Phase Angle Master Curve and Study the Viscoelastic Properties of Warm Mix Crumb Rubber-Modified Asphalt Mixture

Zhang

Wang

et al. 2020

Materials

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“…In Equation (3), E g is the Glassy modulus of asphalt mixture ranges from 42 to 48 GPa [27,28,36,37], while v, w, and t c are fitting parameters. It needs to be mentioned that the CAM model [33] is an exponential based function and does not present any sigmoidal structure in its formulation.…”

Section: Master Curves Modelsmentioning

confidence: 99%

Effect of Different Rheological Models on the Distress Prediction of Composite Pavement

Moon¹,

Falchetto

Park

et al. 2020

Materials

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In this paper, three different rheological models including a newly developed formulation based on the current Christensen Anderson and Marateanu (CAM) model, named sigmoidal CAM model (SCM), are used to estimate the evolution of roughness, rutting, and reflective cracking in a typical composite pavement structure currently widely adopted in South Korea. Three different asphalt mixtures were prepared and dynamic modulus tests were performed. Then, the mechanistic-empirical pavement design guide (MEPDG) was used for predicting the progression of the pavement distress and to estimate the effect of the three different models on such phenomena. It is found that the three different mathematical models provide lower and upper limits for roughness, rutting, and reflective cracking. While the CAM model may not be entirely reliable due to its inability in fitting the data in the high-temperature domain, SCM might result in moderately more conservative pavement design.

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“…The asphalt pavement material is a viscoelastic system; the asphalt mixtures manifest more complex linear viscoelastic (LVE) characteristics under small strain conditions (100-150 µε) due to the combination of the viscoelastic asphalt binders and the aggregate skeleton [4][5][6][7][8][9][10]. It is necessary to understand the rheological property for analyzing the material response, material selection, and pavement design concerning calculating the required pavement thickness [8,[11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Study on the Phase Angle Master Curve of the Polyurethane Mixture with Dense Gradation

Zhao

Wang

Cui³

et al. 2023

Coatings

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The phase angle master curve of the PU mixture is a new research field that is urgently needed to characterize the viscoelastic of the PU mixture under different conditions. In this paper, five master curve models, five shift factor equations, and four error minimization methods were introduced to fitting the phase angle master curve of the PU mixture. The results analysis indicated that the master curves fitted by different error minimization methods had small differences when the loading frequency was higher than 10−3 Hz. The R2 maximization as the main constraint and the others as the additional constraints were recommended as the error minimization method. The combination of the Christensen Anderson and Marasteanu model (CAM) and kaelble shift factor equation was recommended for fitting the phase angle master curve of the PU mixture. The phase angle master curve of the PU mixture did not follow the “Bell” shape of the asphalt mixture. The PU mixture with smaller temperature susceptibility would still be subject to the PU at higher temperatures and was closer to that of the viscoelastic material. The phase angle master curve construction was analyzed for the first time and proper master curve fitting parameters were recommended for pavement performance predicting and analyzing.

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Effect of corn and soybean oil derived additives on polymer-modified HMA and WMA master curve construction and dynamic modulus performance

Cited by 24 publications

References 14 publications

Predict the Phase Angle Master Curve and Study the Viscoelastic Properties of Warm Mix Crumb Rubber-Modified Asphalt Mixture

Predict the Phase Angle Master Curve and Study the Viscoelastic Properties of Warm Mix Crumb Rubber-Modified Asphalt Mixture

Effect of Different Rheological Models on the Distress Prediction of Composite Pavement

Study on the Phase Angle Master Curve of the Polyurethane Mixture with Dense Gradation

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