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A comprehensive review on self-healing of asphalt materials: Mechanism, model, characterization and enhancement
Tongji Univ, Key Lab Rd & Traff Engn, Minist Educ, Shanghai 200092, Peoples R China..
Tongji Univ, Key Lab Rd & Traff Engn, Minist Educ, Shanghai 200092, Peoples R China..ORCID iD: 0000-0002-4072-9395
Tongji Univ, Key Lab Rd & Traff Engn, Minist Educ, Shanghai 200092, Peoples R China.;Dalian Univ Technol, State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China..
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering.ORCID iD: 0000-0003-3874-354X
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2018 (English)In: Advances in Colloid and Interface Science, ISSN 0001-8686, E-ISSN 1873-3727, Vol. 256, p. 65-93Article, review/survey (Refereed) Published
Abstract [en]

Self-healing has great potential to extend the service life of asphalt pavement, and this capability has been regarded as an important strategy when designing a sustainable infrastructure. This review presents a comprehensive summary of the state-of-the-art investigations concerning the self-healing mechanism, model, characterization and enhancement, ranging from asphalt to asphalt pavement. Firstly, the self-healing phenomenon as a general concept in asphalt materials is analyzed including its definition and the differences among self healing and some viscoelastic responses. Additionally, the development of self-healing in asphalt pavement design is introduced. Next, four kinds of possible self-healing mechanism and corresponding models are presented. It is pointed out that the continuum thermodynamic model, considering the whole process from damage initiation to healing recovery, can be a promising study field. Further, a set of self-healing multiscale characterization methods from microscale to macroscale as well as computational simulation scale, are summed up. Thereinto, the computational simulation shows great potential in simulating the self-healing behavior of asphalt materials from mechanical and molecular level. Moreover, the factors influencing self-healing capability are discussed, but the action mechanisms of some factors remain unclear and need to be investigated. Finally, two extrinsic self healing technologies, induction heating and capsule healing, are recommended as preventive maintenance applications in asphalt pavement In future, more effective energy-based healing systems or novel material-based healing systems are expected to be developed towards designing sustainable long-life asphalt pavement (

Place, publisher, year, edition, pages
ELSEVIER SCIENCE BV , 2018. Vol. 256, p. 65-93
Keywords [en]
Self-healing capability, Asphalt materials, Self-healing mechanism, Multiscale characterization, Self-healing enhancement
National Category
Civil Engineering
Identifiers
URN: urn:nbn:se:kth:diva-233612DOI: 10.1016/j.cis.2018.05.003ISI: 000441117500004PubMedID: 29789126Scopus ID: 2-s2.0-85047194305OAI: oai:DiVA.org:kth-233612DiVA, id: diva2:1241966
Note

QC 20180827

Available from: 2018-08-27 Created: 2018-08-27 Last updated: 2018-08-27Bibliographically approved

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