Creep-recovery behavior of bituminous binders and its relation to asphalt mixture rutting

Laukkanen, Olli-Ville; Soenen, Hilde; Pellinen, Terhi; Heyrman, Serge; Lemoine, Geert

doi:10.1617/s11527-014-0464-7

Cited by 105 publications

(32 citation statements)

References 43 publications

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“…The selection of the optimal stress level is still controversial. Some studies claim that higher stress levels improve the correlation with asphalt rutting tests [9,10], while other studies show satisfactory correlations with a stress level of 3.2 kPa [11]. The round robin tests showed that precision is lower at 6.4 kPa than at 3.2 kPa.…”

Section: Perspectivesmentioning

confidence: 98%

“…Moreover, the test procedure [5,6] is relatively easy and fast compared to many other rheological tests. However, the most important is the evidence of a good correlation with asphalt rutting, which has already been demonstrated by several researchers [3,9,10,11]. Consequently, the task group TG1 of CEN TC 336/WG1 was assigned the task to develop a European standard for the MSCR test.…”

Section: Introductionmentioning

confidence: 97%

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European round robin tests for the Multiple Stress Creep Recovery Test and contribution to the development of the European standard test method

Visscher¹,

Paez-Duenas²,

Cabanillas³

et al. 2016

Proceedings of 6th Eurasphalt &Amp; Eurobitume Congress

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In 2011, the task group TG1 of CEN TC336/WG1 was assigned the task to produce a European standard test method for the Multiple Stress Creep Recovery (MSCR) Test. The MSCR test measures non-recoverable creep compliance and percent recovery using DSR and is used to evaluate the sensitivity to permanent deformation of bituminous binders. In 2012, upon completion of the first draft version of the document prEN 16659, TG1 decided to organize a European round robin test, with 4 different binders. This initiative was taken to evaluate and improve the test procedure, to allow laboratories to gain experience with the test method and to determine the precision. Based on the outcome of the statistical analysis and the feedback from the 25 participants, the draft version was revised and a second round robin test was conducted in 2014. The specific purposes of this second round robin test were to expand the precision data to a wider range of binders by testing 7 other binders and to explore alternative test conditions. This paper reports on the outcome of the round robin exercises and the findings, conclusions and recommendations of TG1 towards the implementation in the framework of European binder specifications.

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Section: Perspectivesmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 97%

European round robin tests for the Multiple Stress Creep Recovery Test and contribution to the development of the European standard test method

Visscher¹,

Paez-Duenas²,

Cabanillas³

et al. 2016

Proceedings of 6th Eurasphalt &Amp; Eurobitume Congress

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show abstract

“…The R-value represents the recoverable elastic strain (including the delayed) as a percentage, whereas J nr is a measure of the residual strain due to permanent deformation [55]. Additionally, the percent difference values R diff and J nr-diff between stress levels can be used to characterize the stress sensitivity of the sample [56]. In this study, the average total strain ε 1 (at the end of the creep period) of the ten repetitive creep-recovery cycles was also analyzed for both stress levels.…”

Section: Multiple Stress Creep and Recoverymentioning

confidence: 99%

Influence of morphology on high-temperature rheological properties of bitumen modified with styrene-butadiene-styrene (SBS) copolymer

Zhu

Lü²

2021

Front. Struct. Civ. Eng.

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Different microstructures of the same polymer-modified bitumen (PMB) were obtained by subjecting the bitumen modified with styrene-butadiene-styrene (SBS) copolymer to isothermal annealing at various temperatures. The effects of the morphology on the rheological properties of SBS-modified bitumen were investigated within the high-temperature range. The PMB microstructures were quantitatively evaluated using image analysis. A dynamic shear rheometer was used to measure the rheological parameters of the PMB samples and perform the multiple stress creep and recovery (MSCR) test. A quantitative basis could be established on which to discuss the relationship between the PMB morphology and rheology. The image analysis indicated that conditioning by isothermal annealing evidently led to a difference in the microstructure of the samples. Variation of the thermal history is demonstrated to be a practical way to vary the morphology of the PMB with the same raw materials and formulation. Compared with the two-phase morphology, the single-phase microstructure tended to have a narrower linear viscoelastic (LVE) region of the PMB. Within the LVE region, especially at low frequencies, the homogenous PMB can store more energy when experiencing loadings and is more elastic. Outside the LVE region, based on the MSCR test results, the homogenous morphology could assist in reaching a higher percentage of strain recovery after the creep period.

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“…The resulting permanent deformations prevent the proper drainage of water from the road surface, which significantly affects road safety and reduces driving comfort. Therefore, many research centers are looking for effective methods of counteracting the initiation of this type of damage [ 14 , 15 , 16 , 17 ]. The resistance of asphalt mixtures designed by the Superpave method with the use of a gyratory compactor and AC depends on the effectiveness of aggregate wedging [ 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Type of Modified Binder on Stiffness and Rutting Resistance of Low-Noise Asphalt Mixtures

Pakholak¹,

Plewa²,

Gardziejczyk³

2021

Materials

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Low-noise asphalt mixtures are characterized by increased air void content. Their more open structure contributes to faster degradation within the operating temperature range. For this reason, binder modification is used in their production. The correct selection of modifiers allows one to significantly improve the technical properties of the mixtures. The article presents the results of tests of six types of mixtures: stone mastic asphalt (SMA8), porous asphalt (PA8), stone mastic asphalt reducing tire/road noise (SMA8 LA) and stone mastic asphalt reducing tire/road noise, with 10%, 20% and 30% content of rubber granulate (RG). Bitumen 50/70 modified with copolymer styrene butadiene styrene (SBS) and crumb rubber (CR) was used for the production of the mixtures. In order to determine the differences in the technical properties of the mixtures, the following parameters were tested: stiffness modules by indirect tensile testing of cylindrical specimens (IT-CY) in a wide range of positive temperatures, and resistance to permanent deformation using the British and Belgian methods with the use of double wheel tracker (DWT). The test results and their analysis confirmed that there was a significant improvement in the IT-CY stiffness modules of SBS and CR modified mixtures. Replacing more than 20% of coarse aggregate with RG causes a significant decrease in the stiffness of the mixture (by 90% in relation to the reference mixture SMA8 LA). The SMA mixtures obtained lower values of rutting resistance parameters (WTS and PRD) in water (Belgian method) compared to the results obtained in the air tests (British method). On the other hand, mixtures of PA, thanks to the compression of stresses in pores filled with water, obtained better results when the rutting resistance test was performed in the water (Belgian method).

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Creep-recovery behavior of bituminous binders and its relation to asphalt mixture rutting

Cited by 105 publications

References 43 publications

European round robin tests for the Multiple Stress Creep Recovery Test and contribution to the development of the European standard test method

European round robin tests for the Multiple Stress Creep Recovery Test and contribution to the development of the European standard test method

Influence of morphology on high-temperature rheological properties of bitumen modified with styrene-butadiene-styrene (SBS) copolymer

Influence of Type of Modified Binder on Stiffness and Rutting Resistance of Low-Noise Asphalt Mixtures

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