How to characterize the mechanical response of Bitumen Stabilized Material?

Nivedya, M. K.; Veeraragavan, A.; Krishnan, J. Murali

doi:10.1201/9781315643274-40

Cited by 2 publications

(3 citation statements)

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“…The CRM with RAP exhibits viscoelastic properties (time and temperature-dependent behavior) [103,104] and the highway structure design should be adjusted with the CRM layers. The viscoelastic properties should be taken into consideration during structure design with CRM layers.…”

Section: Discussionmentioning

confidence: 99%

Study on Cold Recycled Asphalt Mixtures with Emulsified/Foamed Asphalt in the Laboratory and On-Site

Zhao

Su²,

Su³

et al. 2022

Coatings

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Millions of tons of reclaimed asphalt pavement (RAP) and reclaimed aggregate or reclaimed inorganic binder stabilized aggregate (RAI) is produced every year in China. The cold recycled mixture (CRM) technology reduces fuel consumption, emissions, and cost and utilizes the high content of RAP. In this paper, six types of CRM with varying RAP/RAI composition and asphalt binders were investigated. The laboratory tests included strength indicators, high temperature stability, low temperature crack resistance, water stability, and dynamic modulus. A full-scale trial section was constructed after the laboratory tests. Except for low temperature failure strain without secondary compaction in the mixture design, test results illustrated that the performances of different CRMs met the specifications. The cement addition limited the thermo-viscoelastic behavior of the CRM. The RAI contents had reduced the water sensitivity of CRM, and the emulsified asphalt CRM had better performance than the foamed asphalt CRM. The performances of samples cored from the test section in the field met the specifications and were lower than that in the laboratory. The curing conditions in the field were not as effective as in the laboratory. The curing conditions and compaction method should simulate the conditions in the field to guide the CRM selection and mixture design.

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Section: Discussionmentioning

confidence: 99%

Study on Cold Recycled Asphalt Mixtures with Emulsified/Foamed Asphalt in the Laboratory and On-Site

Zhao

Su²,

Su³

et al. 2022

Coatings

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“…This is due to the fact that the binder in BSMs is selectively dispersed among the fine aggregate particles, creating local bonds between the coarse aggregate skeleton [8,9]. Due to this phenomenon, mixtures are characterized by the combination of the mechanical properties of unbound (stress-dependent behavior) and viscoelastic materials (time and temperature-dependent behavior) [10][11][12]. The role of an active filler in BSMs with bitumen emulsion (BSM-Es) is mostly related to the acceleration of the bitumen emulsion breaking process and decreasing the moisture susceptibility of the material [8,9,13].…”

Section: Introductionmentioning

confidence: 99%

“…The aspects of fatigue behavior, as well as the cracking resistance of cold recycling mixtures, are considered complex and have not been fully investigated [19][20][21][22]. As BSMs cannot be characterized and modelled as purely viscoelastic nor as granular materials [11,12,23], the behavior of the BSM base layers in the pavement structure is still under discussion. Two leading hypotheses that present different approaches regarding the evolution of the material's stiffness in construction have been developed so far.…”

Section: Introductionmentioning

confidence: 99%

Study of the Stiffness of the Bitumen Emulsion Based Cold Recycling Mixes for Road Base Courses

et al. 2020

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The benefits of the use of cold recycling mixtures (CRMs) in pavement rehabilitation are associated with both the reduction of natural resource consumption by replacing them with recycled materials and the reduction of energy consumption during their production and paving. The evolution of the stiffness of CRMs in road construction and the fatigue life of pavements with CRM base layers are still being investigated. In this paper, CRMs with 1% cement content, called bitumen-stabilized materials with bitumen emulsion (BSM-Es), were examined. Mixtures that were differentiated in terms of Reclaimed Asphalt Pavement (RAP) content, as well as the amount and type of bitumen emulsions, were subjected to indirect tensile stiffness modulus (ITSM) tests at 5 °C, 13 °C, and 20 °C. The thermal sensitivities of the BSM-E mixtures were analyzed. BSM-E mixture stiffness modulus levels at various temperatures were determined using a statistical approach. On the basis of the results obtained, a discussion on the mechanistic-empirical design of flexible pavements with BSM-E base layers is presented. The potential benefits of using BSM-E materials in road construction in certain aspects of pavement life are indicated.

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How to characterize the mechanical response of Bitumen Stabilized Material?

Cited by 2 publications

References 0 publications

Study on Cold Recycled Asphalt Mixtures with Emulsified/Foamed Asphalt in the Laboratory and On-Site

Study on Cold Recycled Asphalt Mixtures with Emulsified/Foamed Asphalt in the Laboratory and On-Site

Study of the Stiffness of the Bitumen Emulsion Based Cold Recycling Mixes for Road Base Courses

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