Induction healing of asphalt mixes with steel slag

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

1 Citation (Scopus)
31 Downloads (Pure)

Abstract

Asphaltic mixes are self-healing materials since they have the capacity to close internal microcracks at higher temperatures or under external force. To trigger their self-healing, asphalt mixes modified with inductive agents can be heated and in that way healed through applying alternating magnetic fields with the aid of an induction coil and this technique is named induction healing. This paper assesses the potential of implementing induction healing in an existing asphalt pavement with steel slag. Cores have been drilled from a field section of a mix with steel slag and were fatigue damaged in an indirect tensile test and healed via induction. The material induction healing potential has been visualized through different X-ray CT scans over the thickness of samples. The induction heating speed of asphalt mixes with steel slag was evaluated as well. The main conclusion in this study was that the total fatigue life of asphalt with steel slag can be enhanced with induction heating. The efficiency of micro-cracks closure was the same over the thickness of asphalt mixes and in combination with the high heating speed (~1.8 °C /sec), induction becomes a very promising alternative for various pavement operations.
Original languageEnglish
Title of host publicationAdvances in Materials and Pavement Prediction
Subtitle of host publicationPapers from the International Conference on Advances in Materials and Pavement Performance Prediction (AM3P 2018), April 16-18, 2018, Doha, Qatar
EditorsEyad Masad, Amit Bhasin, Tom Scarpas, Ilaria Menapace, Anupam Kumar
PublisherCRC Press
Chapter74
Pages379-382
Number of pages4
ISBN (Electronic)9780429855801
ISBN (Print)9781138313095
DOIs
Publication statusPublished - 2018
EventAM3P 2018: International Conference on Advances in Materials and Pavement Performance Prediction - Doha, Qatar
Duration: 16 Apr 201818 Apr 2018
Conference number: 5
http://www.am3p.com/

Conference

ConferenceAM3P 2018: International Conference on Advances in Materials and Pavement Performance Prediction
Abbreviated titleAM3P 2018
CountryQatar
City Doha
Period16/04/1818/04/18
OtherInspired from the legacy of the previous four 3DFEM conferences, AM3P continues the same theme i.e. models, experimental methods to measure properties and determine model parameters, implementation and utilization for material or pavement performance prediction.
Internet address

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