Self-healing capacity of asphalt mixtures including by-products both as aggregates and heating inductors

M. Vila-Cortavitarte, D. Jato-Espino, D. Castro-Fresno, M.Á. Calzada-Pérez

Research output: Contribution to journalArticle

13 Citations (Scopus)
3 Downloads (Pure)

Abstract

Major advances have been achieved in the field of self-healing by magnetic induction in which the addition of metallic particles into asphalt mixtures enables repairing their own cracks. This
technology has already been proven to increase the life expectancy of roads. Nevertheless, its higher costs in comparison with conventional maintenance caused by the price of virgin metallic particles still makes it unattractive for investment. This research aimed at making this process economically accessible as well as environmentally efficient. To this end, an intense search for suitable industrial by-products to substitute both the virgin metal particles and the natural aggregates forming asphalt
mixtures was conducted. The set of by-products used included sand blasting wastes, stainless shot wastes, and polished wastes as metallic particles and other inert by-products as aggregates. The results demonstrated that the by-products were adequately heated, which leads to satisfactory healing ratios in comparison with the reference mixture.
Original languageEnglish
Article number800
Number of pages14
JournalMaterials
Volume11
Issue number5
DOIs
Publication statusPublished - 15 May 2018
Externally publishedYes

Bibliographical note

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Keywords

  • self-healing
  • asphalt mixtures
  • induction heating
  • magnetic induction
  • metallic by-products

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