Functionally graded 3D printed asphalt composites

Richard J. Jackson; P. Stephen Patrick; Mark Miodownik

Materials Letters: X (Sep 2020)

Functionally graded 3D printed asphalt composites

Richard J. Jackson,
P. Stephen Patrick,
Mark Miodownik

Affiliations

Richard J. Jackson: Mechanical Engineering, University College London, London, UK; Institute of Making, University College London, London, UK
P. Stephen Patrick: Centre for Advanced Biomedical Imaging, University College London, London, UK
Mark Miodownik: Mechanical Engineering, University College London, London, UK; Institute of Making, University College London, London, UK; Corresponding author.

Journal volume & issue: Vol. 7

Abstract

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A new technique for additive manufacture of composites has been developed, capable of 3D printing different compositions of asphalt with magnetic nanoparticles. Variation of the material feed ratio combined with precise fabrication geometries offers a simple avenue to functional grading of the materials properties. The integration of nanomaterials into milli-scale particle feedstock offers a new modality of nanomaterials handling, mixing and processing. We use X-ray computed tomography to quantify the functional grading and magnetic hyperthermia experiments to illustrate the functionalisation of the 3D printed composites. The technique is general and can be applied to a wide variety of materials; it has immediate application for repairing cracks in asphalt roads to modulate their properties and improve the lifetime of the repair.

Published in Materials Letters: X

ISSN: 2590-1508 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.journals.elsevier.com/materials-letters-x

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