Application of a strain sweep test to assess fatigue behavior of asphalt binders

Nieto, Ramón Botella; Pérez-Jiménez, Félix; Recasens, José Rodrigo Miró

doi:10.1016/j.conbuildmat.2012.06.059

Cited by 49 publications

(27 citation statements)

References 11 publications

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“…Even that asphalt fatigue tests have been developed and widely used in the last decades, it is known that these tests are time consuming and relatively expensive. On the other hand, fatigue properties of mixtures are strongly related with those of binders and, in this context, fatigue testing of bituminous binders is an important task with considerable research potential (Partl et al 2013;Botella et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Different Methods for the Estimation of the Bitumen Fatigue Life with DSR Testing

et al. 2015

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Asphalt fatigue cracking is one of the phenomena that contribute most to degradation of road pavements and it may initiate within the bitumen or at the bitumen-aggregate interface. The cohesive cracking resistance can be evaluated with bitumen testing. Commonly, the Dynamic Shear Rheometer (DSR) is used for bitumen testing. This paper presents an evaluation of different methods proposed in literature for the estimation of the bitumen fatigue life. A neat and a polymer modified bitumen (PMB) were tested with time sweep tests (continuous and discontinuous loading) and with incremental load amplitude (linear amplitude sweep test). The results are analysed with the traditional approach (N f,50 corresponding to 50 % initial modulus reduction) and other methodologies, namely the Ratio of Dissipated Energy Change (RDEC) and the Viscoelastic Continuum Damage (VECD) approach. The results obtained showed, as expected, that the PMB has a higher resistance to fatigue than the neat bitumen. The test conditions and the method used to evaluate the fatigue resistance lead to significant differences in the estimated bitumen fatigue life. The plateau value (RDEC) shows very good correlation with N f,50 obtained from constant strain amplitude tests, regardless of the type of bitumen or test conditions. The fatigue life parameters obtained from the linear amplitude sweep test is very sensitive to the analysis method. Healing during non-loading periods has a large effect on the PMB fatigue life while no effect in the neat bitumen fatigue life for small to intermediate rest periods.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Different Methods for the Estimation of the Bitumen Fatigue Life with DSR Testing

et al. 2015

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“…Due to the synthetic nature of the studied resin, a tentative vertical shifting was also applied. e fatigue resistance of the studied binders was also investigated through the linear amplitude sweep (LAS) test which consists of a time-saving and e ective (especially for comparative purposes) laboratory procedure to obtain the fatigue law of a bituminous binder with respect to the traditional time sweep analysis, i.e., a series of oscillatory shear tests at a selected frequency and di erent constant strain amplitudes [25][26][27][28]. According to AASHTO TP 101-14, LAS tests were performed on 8 mm diameter specimens by…”

Section: Advances In Materials Science and Engineeringmentioning

confidence: 99%

Aesthetic and Mechanical Suitability of a Clear Synthetic Resin as a Unconventional Binder for Road Pavements

Pasetto

Baliello

Giacomello

et al. 2019

Advances in Materials Science and Engineering

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Current environmental awareness interests several aspects of civil engineering, including road construction. Indeed, new challenges related to environmental pollution and landscape preservation must be faced. In this sense, clear road pavement surfaces represent an effective technology aimed at guaranteeing environmental-friendly aesthetic pavements. The use of clear synthetic resin as a binder involves several benefits for the mitigation of in-service reached temperatures and the heat distribution within pavements (with appreciable effects on pavement mechanical performance too). The present paper illustrates an experimental study aimed at analysing the chromatic and mechanical properties of a clear synthetic resin and thus its suitability as a binder for road pavement mixes. Chromatic characteristics were assessed through digital image analysis at different aging conditions. A dynamic shear rheometer was used to evaluate the linear viscoelastic properties as well as fatigue and rutting potential of the binder in a wide range of temperatures and frequencies. A conventional 35/50 penetration grade bitumen was also investigated for comparison purposes. The clear resin exhibited limited changes in colour (darkening effects), mainly in the case of short-term aging. On the other hand, a low temperature-dependency of such a binder was observed up to 58°C. Slightly increased aptitude to rutting at the higher temperatures was detected, even if it is worth noting that clear in-service mixtures would achieve lower temperatures than traditional “black” materials at a given environmental condition (air temperature, solar radiation, etc.). The resin also exhibited a softer behaviour, along with an enhanced fatigue resistance. Overall, the studied innovative binder showed promising results in view of its effective use in road paving.

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“…It should be noted that the term (1-(1/tanδ sinδ) becomes zero when δ is equal to or lower than 52 degrees; therefore, the parameter is not applicable at values of δ below 52 degrees. However, if it happens that δ gets lower than 52 degrees, the parameter, G*/(sinδ) 9 , can be used to give a very close approximation to the original parameter G*/(1-(1/tanδ sinδ) based on the best-fit curve [68]. The temperature at which G*/(1-(1/tanδ sinδ) is greater than (50 Pa) for RTFO aged binders at ω=0.25 rad/s, has been specified as the high specification temperature THS (℃) [70].…”

Section: Shenoy Rutting Parametermentioning

confidence: 99%

“…The DSR has also been used to apply repeated cyclic loading at specific loading and temperature condition until the specimen fails. The test provides continuous viscoelastic measurements which are used to assess the internal damage characteristic of materials during fatigue evolution [8][9][10][11][12]. This approach has been shown to provide an independent fatigue law regardless of loading mode and frequency when the fatigue analysis is based on the dissipated energy method.…”

Section: Introductionmentioning

confidence: 99%

Advanced analytical techniques in fatigue and rutting related characterisations of modified bitumen: Literature review

Subhy

2017

Construction and Building Materials

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Abstract:Fatigue and rutting are the two major failure distresses in flexible pavement that affect significantly the serviceability of pavement. The properties of bitumen have a direct effect on controlling the fatigue and rutting distresses. Because of the increase in vehicular loading and repetitions, the modification of neat bitumens becomes a widespread practice to improve their 2 mechanical properties. Any improvements obtained from developing modified binders need be reflected by fundamental testing parameters. The empirical testing methods and Superpave grading procedure that were developed mainly for unmodified bitumens have failed in many cases to predict the performance of modified bitumens. Evaluation the influence of such modifiers needs be based on characterising accurately the inherent resistance of binders to fatigue and rutting damage. The most advanced tests and fundamental analysis methods for characterising the fatigue and rutting properties of binders, are discussed and presented in this paper. These include fatigue and ductile fracture evaluation of binders using time sweep and double-edged notched tension (DENT) tests. For bitumen rutting evaluation, the SHRP rutting parameter, Shenoy rutting parameter, ZSV and MSCR are discussed. The dynamic shear rheometer (DSR) has been largely used to characterise fundamentally the viscoelastic properties of bitumens. A detailed description of the main elements associated with the DSR and Dynamic Mechanical Analysis (DMA) are also presented in this paper.

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Application of a strain sweep test to assess fatigue behavior of asphalt binders

Cited by 49 publications

References 11 publications

Evaluation of Different Methods for the Estimation of the Bitumen Fatigue Life with DSR Testing

Evaluation of Different Methods for the Estimation of the Bitumen Fatigue Life with DSR Testing

Aesthetic and Mechanical Suitability of a Clear Synthetic Resin as a Unconventional Binder for Road Pavements

Advanced analytical techniques in fatigue and rutting related characterisations of modified bitumen: Literature review

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