PSI - Issue 37

Available online at www.sciencedirect.com Procedia Structural Integrity 00 (2021) 000 – 000 Available online at www.sciencedirect.com ScienceDirect Procedia Structural Integrity 00 (2021) 000 – 000 Available online at www.sciencedirect.com ScienceDirect

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Procedia Structural Integrity 37 (2022) 985–988

© 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Pedro Miguel Guimaraes Pires Moreira © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Pedro Miguel Guimaraes Pires Moreira Abstract This paper summarizes scientific research by the authors on mechanical and environmental variables governing the behaviour of hot bituminous mixtures, with special emphasis on damage, degradation and fracture. With regard to the mechanical factors affecting the structural performance of the mixtures, the following ones can be mentioned: (i) cyclic loading (mechanical fatigue), (ii) laboratory boundary conditions to test the specimens. In the matter of environmental factors influencing such a mechanical (damage & fracture) performance, the list is as follows: (i) de-icing salts, (ii) weather conditions including temperature cycles (ther al fatigue), rainfall and presence of ice. Results are presented in systematic manner to draw conclusions and recommendations applicable to real traffic of vehicles in roads. © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Pedro Miguel Guimaraes Pires Moreira ICSI 2021 The 4th International Conference on Structural Integrity Structural integrity of hot bituminous mixtures for road pavements: mechanical and environmental factors governing fatigue & fracture Jesús Toribio*, Rubén Tino, Beatriz González, Juan-Carlos Matos Fracture & Structural Integrity Research Group (FSIRG), University of Salamanca (USAL) E.P.S., Campus Viriato, Avda. Requejo 33, 49022 Zamora, Spain Abstract This paper summarizes scientific research by the authors on mechanical and environmental variables governing the behaviour of hot bituminous mixtures, with special emphasis on damage, degradation and fracture. With regard to the mechanical factors affecting the structural performance of the mixtures, the following ones can be mentioned: (i) cyclic loading (mechanical fatigue), (ii) laboratory boundary conditions to test the specimens. In the matter of environmental factors influencing such a mechanical (damage & fracture) performance, the list is as follows: (i) de-icing salts, (ii) weather conditions including temperature cycles (thermal fatigue), rainfall and presence of ice. Results are presented in systematic manner to draw conclusions and recommendations applicable to real traffic of vehicles in roads. ICSI 2021 The 4th International Conference on Structural Integrity Structural integrity of hot bituminous mixtures for road pavements: mechanical and environmental factors governing fatigue & fracture Jesús Toribio*, Rubén Tino, Beatriz González, Juan-Carlos Matos Fracture & Structural Integrity Research Group (FSIRG), University of al manca (USAL) E.P.S., Campus Viriato, Avda. Requejo 33, 49022 Zamora, Spain

Keywords: hot bituminous mixtures (HBM); mechanical behaviour; mechanical variables; environmental variables. Keywords: hot bituminous mixtures (HBM); mechanical behaviour; mechanical variables; environmental variables.

1. Introduction The study of mechanical behaviour of hot bituminous mixtures (HBM) is the key issue to guarantee the reliability and durability of road pavements subjected to in-service traffic loading (Garnica et al., 2002). 1. Introduction The study of mechanical behaviour of hot bituminous mixtures (HBM) is the key issue to guarantee the reliability and durability of road pavements subjected to in-service traffic loading (Garnica et al., 2002).

* Corresponding author. Tel.: +34-677566723; fax: +34-980545002. E-mail address: toribio@usal.es * Corresponding author. Tel.: +34-677566723; fax: +34-980545002. E-mail address: toribio@usal.es

2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Pedro Miguel Guimaraes Pires Moreira 2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an ope access article under the CC BY-NC-ND lic nse (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Pedro Miguel Guimaraes Pires Moreira

2452-3216 © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of Pedro Miguel Guimaraes Pires Moreira 10.1016/j.prostr.2022.02.034