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Advanced testing and characterization of low-temperature cracking in bitumen and mastic
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Materials.ORCID iD: 0000-0003-1432-8595
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Materials.ORCID iD: 0000-0002-0596-228X
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Materials.ORCID iD: 0000-0002-1041-0244
2024 (English)In: Materials and Structures, ISSN 1359-5997, E-ISSN 1871-6873, Vol. 57, no 1, article id 24Article in journal (Refereed) Published
Abstract [en]

Low-temperature cracking is one of the most common failures in asphalt pavements, especially in cold regions. Accordingly, considerable amount of research has been performed in order to understand the low-temperature cracking mechanisms and to propose test methods for characterizing and determining cracking performance of bitumen and asphalt mixtures under freezing conditions. The existing test methods, however, require expensive equipment and skilled technicians; they are thus not well suited for routine tests. As a contribution to mitigate this situation, this study intends to investigate experimentally and characterize numerically the low-temperature cracking behavior of bitumen and mastic materials using a refined thermal cracking test method. The proposed method, the annular restrained cold temperature induced cracking (ARCTIC) test, allows to determine the low-temperature cracking properties of the mastic and bitumen with a relatively simple setup. In this paper, finite element (FE) modeling is used for evaluating the effect of test parameters on the temperature, stress and strain gradients induced in the specimen during the test. The ARCTIC test is employed to measure cracking temperatures of two bitumen and two mastic materials. The measurements repeatability is examined and the effect of bitumen type on the thermal cracking potential of bitumen and mastic is evaluated. FE modeling is employed to examine the effect of thermomechanical parameters on thermal cracking performance of the materials and to back-calculate fracture stress and strain from measurements. The results highlight the potential of the proposed test and analysis method for evaluation of low-temperature cracking in bitumen and asphalt mastic.

Place, publisher, year, edition, pages
Springer Nature , 2024. Vol. 57, no 1, article id 24
Keywords [en]
Annular restrained cold temperature induced cracking (ARCTIC) test, Bitumen, Finite element method, Mastic, Thermal cracking, Viscoelasticity
National Category
Infrastructure Engineering
Identifiers
URN: urn:nbn:se:kth:diva-343204DOI: 10.1617/s11527-024-02294-1ISI: 001148846000001Scopus ID: 2-s2.0-85183341844OAI: oai:DiVA.org:kth-343204DiVA, id: diva2:1836106
Note

QC 20240208

Available from: 2024-02-08 Created: 2024-02-08 Last updated: 2024-02-08Bibliographically approved

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Shabani, AmirElaguine, DenisPartl, Manfred

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