General overview of the time-temperature superposition principle validity for materials containing bituminous binder

Benedetto, Hervé Di; Sauzéat, Cédric; Bilodeau, Kevin; Buannic, M.; Mangiafico, Salvatore; Nguyen, Quang Tuan; Pouget, Simon; Tapsoba, Nouffou; Rompu, Julien Van

doi:10.5568/ijra.2011-01-03.3552

Cited by 22 publications

(9 citation statements)

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“…This result confirmed previous results presented in the literature, but without confinement (Di Benedetto, Nguyen, Pouget, & Sauzéat, 2008;Di Benedetto et al, 2011;Nguyen, Pouget, Di Benedetto, & Sauzéat, 2009), or in the very high frequency domain (Di Benedetto, Sauzéat, & Sohm, 2009). Finally, a viscoelastic-viscoplastic model has been developed in order to simulate the experimental response.…”

Section: Introductionsupporting

confidence: 94%

Cyclic triaxial tests on bituminous mixtures

Blanc¹,

Gabet²,

Huard³

et al. 2014

Road Materials and Pavement Design

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In the framework of a study on rutting of bituminous layers, thermo-controlled triaxial tests under constant confining pressure on homogeneous asphalt concrete specimen have been performed. These tests are cyclic sinusoidal tests, with the aim to reproduce in some way the loading and unloading phases due to traffic on roads. The influences of confinement and load frequency have been studied. Tests have highlighted that confinement notably decreases the strain rate as well as the level of strain reached at the end of the test. The tests did not allow to clearly observe the influence of frequency on the response of the material, due to problems of repeatability. In order to avoid such problems, another test procedure was adopted. It consisted in changing either confinement or frequency during the test, with the purpose to see an evolution of strain rate, and to establish correlations. These tests have clearly shown the influence of cyclic loading and the relative influence of loading frequency on the response of asphalt concrete. The main objective of this triaxial programme is to develop a numerical model, based on rheological laws, able to predict the behaviour of bituminous layers.

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Section: Introductionsupporting

confidence: 94%

Cyclic triaxial tests on bituminous mixtures

Blanc¹,

Gabet²,

Huard³

et al. 2014

Road Materials and Pavement Design

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“…In fact, as previously demonstrated by other researches, aged and polymer modified bitumens do not follow the Time-Temperature Superposition Principle (Stimilli et al 2013). However, as long as only the complex modulus norm is evaluated, the Partial Time-Temperature Superposition Principle can be considered valid (Di Benedetto et al 2011). Thus, the master curves of Fig.…”

Section: Stiffnessmentioning

confidence: 87%

In Plant Production of Hot Recycled Mixtures with High Reclaimed Asphalt Pavement Content: A Performance Evaluation

et al. 2015

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Nevertheless hot recycling process is nowadays a widespread technique, many doubts related to the in plant recycling process effects on the performance of recycled mixtures still exist and limit the maximum allowable amount of Reclaimed Asphalt Pavement (RAP). Therefore, the feasibility of an efficient production of plant hot recycled mixtures characterized by high RAP content and suitable performance should be properly addressed. To this aim, the overall performance of hot recycled asphalt mixtures produced in asphalt plant and containing high RAP content were assessed in this study. The mixtures were prepared with two different bitumens (high and low content of SBS polymer modifier) and 40 % of RAP only deriving from asphalt layers containing polymer modified bitumens. The aggregate grading curve was previously optimized through a specific laboratory study by applying the Bailey Method and using selected RAP. A third mixture, currently used for binder layers in motorway pavements, was also studied for comparative purposes. Compactability, stiffness, cracking and rutting resistance and fatigue behavior were investigated. Results of the mechanical tests suggest that mixtures containing 40 % RAP are suitable for the production of new asphalt pavements, especially when low modified bitumens are used. In fact, the performance of such mixtures were comparable or even higher than those of the reference mixture. In particular, the specific and accurate mix design allowed the potential drawbacks due to higher RAP content to be balanced.

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“…This is exactly the case with the measured values of / m for HMA that, at f R values between 0.1 Hz and 0.01 Hz, change from positive to negative. It is worth noting that a change of sign of / m was also reported by the cited experimental studies [16,28,29]. Clearly such a change of sign cannot be captured by the H-S model, or by other series-parallel rheological models.…”

Section: Log a E Tref (T) T [°C]mentioning

confidence: 75%

“…Temperature shift factors for E Ã and interpolating WLF curves. curve) was observed in other experimental studies on bituminous mixtures [16,28,29]. A clear explanation of such behaviour has not been proposed yet, however theoretical studies on viscoelastic materials [30] showed that it may be due to the inherent non-linearity of the time-dependent Poisson's ratio.…”

Section: Log a E Tref (T) T [°C]mentioning

confidence: 79%