Linear viscoelastic (LVE) properties of asphalt mixtures with different glass aggregates and hydrated lime content

Lachance-Tremblay, Éric; Vaillancourt, Michel; Perraton, Daniel; Benedetto, Hervé Di

doi:10.1080/10298436.2018.1526380

Cited by 15 publications

(8 citation statements)

References 25 publications

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“…Although TTSP has been verified by many studies looking at the unidirectional LVE behaviour of bituminous materials, it is not always verified for mixtures made with highly modified bitumen 22,23 . Hence, it is necessary as a first step to validate TTSP for HMAC in the LVE domain.…”

Section: Results and Analysismentioning

confidence: 99%

Validation of time temperature superposition principle for high modulus asphalt concrete in the linear viscoelastic and fatigue domains

Boussabnia

Perraton

Benedetto

et al. 2022

Fatigue Fract Eng Mat Struct

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Validation of time–temperature superposition principle (TTSP) in the fatigue domain for a high modulus asphalt concrete (HMAC) is presented in this paper. All tests were performed in tension‐compression under strain control mode. First, TTSP was validated in the linear viscoelastic domain. Then, fatigue tests were performed under three loading conditions, 9.2°C and 5 Hz, 11.0°C and 10 Hz and 12.9°C and 20 Hz, which are equivalent regarding TTSP. Two fatigue protocols were adopted: continuous fatigue test (FT) and fatigue test with rest period (FTRP). For FT, three samples were tested at 180μm/m for each loading condition whereas for FTRP, one sample was tested at 100 μm/m. The data were analysed by comparing the dynamic modulus evolution as a function of time or the fatigue life duration. The results showed that HMAC with fatigue damage remains thermorheologically simple (i.e., respects the TTSP) in the studied temperatures range.

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Section: Results and Analysismentioning

confidence: 99%

Validation of time temperature superposition principle for high modulus asphalt concrete in the linear viscoelastic and fatigue domains

Boussabnia

Perraton

Benedetto

et al. 2022

Fatigue Fract Eng Mat Struct

Self Cite

View full text Add to dashboard Cite

show abstract

“…Moreover, following the SDGs, an additional improvement was introduced in this academic year. Apart from the standardized design of the pavement structure, some new research about more sustainable materials or construction procedures in pavements was presented, including the reutilization of previous pavements to manufacture some layers in new pavements [48][49][50][51][52][53] or the introduction of waste materials in the production of some materials [54][55][56][57][58][59][60][61][62][63][64]. Hence, students had to choose one of the recently investigated materials or procedures to propose a more sustainable pavement structure.…”

Section: Transport Infrastructurementioning

confidence: 99%

Sustainable Civil Engineering: Incorporating Sustainable Development Goals in Higher Education Curricula

et al. 2021

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In the current climate emergency context, many national and international organizations have adopted measures to integrate sustainability and Sustainable Development Goals (SDGs) in all their fields of action. Within education, steps have been taken to incorporate the perspective of sustainability at all levels. This process has also started at the university since it plays a fundamental role in the strategy for the implementation of specific policies to promote sustainability. However, sometimes it is difficult to include this type of knowledge in the curriculum, due to the lack of flexibility of the university structure or the lack of time to cover the syllabus. In this scenario, civil engineering plays a main role as a fundamental activity in the creation of services and infrastructures with a high environmental impact. The objective of this study is to show a multidisciplinary approach to working on sustainability in a transversal way in the civil engineering degree and to analyze the impact that this type of initiative can have from the learning point of view. The study shows a curricular trajectory supported by problem-based learning and project-based learning designed to promote sustainability in the practice of civil engineering. The good results obtained in the evaluation of the project and the growing incorporation of the SDGs in the final degree projects suggest that this methodology can be implemented by other university degrees.

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“…According to the TTEP, the creep compliances of asphalt mixtures at low temperatures can be obtained by horizontally shifting the high-temperature creep curves in logarithmic coordinates [37,38]. The shifting distance is called the shift factor and can be obtained by the overlap area surrounded by the displacement curve and the reference curve.…”

Section: Creep Compliance Of Asphalt Mixtures At Different Temperaturesmentioning

confidence: 99%

Viscoelastic Properties of Asphalt Mixtures with Different Modifiers at Different Temperatures Based on Static Creep Tests

Cheng

et al. 2019

Applied Sciences

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To obtain the viscoelastic parameters of asphalt mixtures and analyze the effect of temperatures and modifiers on viscoelastic properties of asphalt mixtures, the creep compliances of the neat asphalt mixture (AM), compound diatomite and basalt fibers reinforced asphalt mixture (DBFAM), and styrene-butadiene-styrene modified asphalt mixture (SBSAM) were tested and calculated by the static creep tests. And the creep compliances of the three asphalt mixtures at −20 °C, −10 °C, and 0 °C are deducted by the time–temperature equivalence principle (TTEP) and Arrhenius equation. Further, the relaxation modulus of the three asphalt mixtures from −20 °C to 50 °C at 10 °C increments are calculated by the convolution integral and Simpson method. Subsequently, the Burgers model, the generalized Kelvin model, and the generalized Maxwell model are applied to analyze the viscoelastic properties of the three asphalt mixtures at different temperatures. The results show that the generalized Kelvin model and the generalized Maxwell model are superior to the Burgers model in describing the variation of viscoelastic properties of asphalt mixtures with loading time. At low temperatures, asphalt mixtures have excellent properties in resisting permanent deformation and releasing internal stress. Besides, the addition of SBS modifier and compound diatomite and basalt fibers modifier can significantly raise the viscosity η1 and the elastic modulus E1 of the asphalt mixture, respectively.

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Linear viscoelastic (LVE) properties of asphalt mixtures with different glass aggregates and hydrated lime content

Cited by 15 publications

References 25 publications

Validation of time temperature superposition principle for high modulus asphalt concrete in the linear viscoelastic and fatigue domains

Validation of time temperature superposition principle for high modulus asphalt concrete in the linear viscoelastic and fatigue domains

Sustainable Civil Engineering: Incorporating Sustainable Development Goals in Higher Education Curricula

Viscoelastic Properties of Asphalt Mixtures with Different Modifiers at Different Temperatures Based on Static Creep Tests

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