Use of the MSCR test to characterize the asphalt binder properties relative to HMA rutting performance – A laboratory study

Zhang, Jun; Walubita, Lubinda F.; Faruk, Abu N.M.; Karki, Pravat; Simate, Geoffrey S.

doi:10.1016/j.conbuildmat.2015.06.044

Cited by 126 publications

(52 citation statements)

References 7 publications

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“…It provides the possibility of evaluating the dependency of polymer-modified binders in relation to stress levels, which is not possible with the traditional test because the latter is performed at the linear viscoelastic (LVE) region of the asphalt binder. Besides that, previous studies [47][48][49][50][51][52] indicated that the Jnr value has provided better correlation to the permanent deformation of field and laboratory asphalt mixtures in relation to the correlations done with the parameter |G*|/senδ.…”

Section: Multiple Stress Creep and Recovery (Mscr) Testmentioning

confidence: 91%

Characterization of neat and modified asphalt binders and mixtures in relation to permanent deformation

Bessa

Takahashi

Vasconcelos

et al. 2019

Science and Engineering of Composite Materials

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The addition of polymers on asphalt binders aims to enhance their performance, especially at high temperatures, which correspond to rutting resistance. The Superpave rutting parameter (|G*|/sinδ) has been considered to be inadequate to characterize the performance of modified materials, therefore the Multiple Stress Creep and Recovery (MSCR) test was developed, providing the parameter non-recoverable compliance (Jnr). This research has the main objective of correlating asphalt binders performance-based characterization with rutting resistance of asphalt mixtures, and presents results obtained for one conventional (50/70 penetration grade) and two modified asphalt binders (2.1% RET and 1.9% RET) regarding their rheological characteristics. With the use of the dynamic shear rheometer (DSR), master curves and MSCR results were obtained for the three binders. In addition, permanent deformation tests were performed on the asphalt mixtures by means of laboratory traffic simulation. The rutting characterization indicated higher permanent deformation resistance for the modified binders for the asphalt binder and the asphalt mixture testing. The main conclusions were that the use of modified binder reduced in approximately 50% the Jnr values and the rut depth; also, the asphalt binders’ characteristics were able to predict the asphalt mixtures rutting resistance.

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Section: Multiple Stress Creep and Recovery (Mscr) Testmentioning

confidence: 91%

Characterization of neat and modified asphalt binders and mixtures in relation to permanent deformation

Bessa

Takahashi

Vasconcelos

et al. 2019

Science and Engineering of Composite Materials

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“…Thus, the comprehensive high-temperature performance ranking of the polymer-modified asphalt was TB-APAO, followed by SBS, WTR-APAO, and EVA. Note that dynamic stability ( DS ) is a useful indicator for characterizing the high-temperature performance of asphalt mixtures [49,50,51,52]. Therefore, in order to create the relationship between the performance of asphalt and asphalt mixtures, the DS results were selected for the comparison.…”

Section: Laboratory Results and Analysismentioning

confidence: 99%

High-Temperature Performance of Polymer-Modified Asphalt Mixes: Preliminary Evaluation of the Usefulness of Standard Technical Index in Polymer-Modified Asphalt

2019

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The objectives of this study are to evaluate the high-temperature performance of polymer-modified asphalt and asphalt mixtures, and to investigate if the standard technical indexes are useful in the performance evaluation of the polymer-modified asphalt. There are four typically used polymer-modified asphalt types employed in the study. The standard high-temperature rheological test, such as the temperature sweep test, was used to express the high-temperature performance of the polymer-modified asphalt. Also, considering the non-Newtonian fluid properties of the polymer-modified asphalt, the multiple stress creep recovery (MSCR) and zero-shear viscosity (ZSV) tests were employed for the characterizations. Besides, based on the mixture design of SMA-13, the high temperature of the polymer-modified asphalt mixture was evaluated via Marshall stability and rutting tests. The test results concluded that the ranking of the four kinds of polymer-modified asphalt was different in various laboratory tests. The TB-APAO has the best technical indexes in MSCR and ZSV tests, while the WTR-APAO performed best in the temperature sweep test. In addition, the correlation between the polymer-modified asphalt and the asphalt mixture was very poor. Thus, the present standard technical indexes for the profoundly polymer-modified asphalt mixtures are no longer suitable.

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“…where M = 10 is the number of creep-recovery cycles at each creep stress level, 10,i is the strain value at the end of the recovery portion of the ith creep-recovery cycle, and 1,i is the strain value at the end of the creep portion of the ith creeprecovery cycle. The permanent deformation in a binder under RCR loading, Jnr, has been shown to correlate linearly with the rut depth in asphalt mixtures and pavements (D' Angelo 2009;Zhang et al 2015).…”

Section: Check For Thermorheological Simplicitymentioning

confidence: 99%

Strain accumulation in bituminous binders under repeated creep-recovery loading predicted from small-amplitude oscillatory shear (SAOS) experiments

Laukkanen

Winter

2017

Mech Time-Depend Mater

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The creep-recovery (CR) test starts out with a period of shearing at constant stress (creep) and is followed by a period of zero shear stress where some of the accumulated shear strain gets reversed. Linear viscoelasticity (LVE) allows to predict the strain response to repeated creep-recovery (RCR) loading from measured small-amplitude oscillatory shear (SAOS) data. Only the relaxation and retardation time spectra of a material need to be known and these can be determined from SAOS data. In an application of the Boltzmann superposition principle (BSP), the strain response to RCR loading can be obtained as linear superposition of the strain response to many single creep-recovery tests. SAOS and RCR data were collected for several unmodified and modified bituminous binders, and the measured and predicted RCR responses were compared. Generally good agreement was found between the measured and predicted strain accumulation under RCR loading. However, in the case of modified binders, the strain accumulation was slightly overestimated (≤20 % relative error) due to the insufficient SAOS information at long relaxation times. Our analysis also demonstrates that the evolution in the strain response under RCR loading, caused by incomplete recovery, can be reasonably well predicted by the presented methodology. It was also shown that the outlined modeling framework can be used, as a first approximation, to estimate the rutting resistance of bituminous binders by predicting the values of the Multiple Stress Creep Recovery (MSCR) test parameters.

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Use of the MSCR test to characterize the asphalt binder properties relative to HMA rutting performance – A laboratory study

Cited by 126 publications

References 7 publications

Characterization of neat and modified asphalt binders and mixtures in relation to permanent deformation

Characterization of neat and modified asphalt binders and mixtures in relation to permanent deformation

High-Temperature Performance of Polymer-Modified Asphalt Mixes: Preliminary Evaluation of the Usefulness of Standard Technical Index in Polymer-Modified Asphalt

Strain accumulation in bituminous binders under repeated creep-recovery loading predicted from small-amplitude oscillatory shear (SAOS) experiments

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