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Functionalization of Smart Recycled Asphalt Mixtures: A Sustainability Scientific and Pedagogical Approach

Author

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  • Iran Rocha Segundo

    (Department of Civil Engineering, University of Minho, CTAC, 4800-058 Guimarães, Portugal
    Centre of Physics of Minho and Porto Universities (CF-UM-UP), Azurém Campus, University of Minho, 4800-058 Guimarães, Portugal)

  • Behzad Zahabizadeh

    (ISISE, Institute of Science and Innovation for Bio-Sustainability (IB-S), Department of Civil Engineering, University of Minho, 4800-058 Guimarães, Portugal)

  • Salmon Landi

    (Federal Institute Goiano, Rio Verde 75901-970, GO, Brazil)

  • Orlando Lima

    (Department of Civil Engineering, University of Minho, CTAC, 4800-058 Guimarães, Portugal)

  • Cátia Afonso

    (Centre of Physics of Minho and Porto Universities (CF-UM-UP), Azurém Campus, University of Minho, 4800-058 Guimarães, Portugal)

  • Jaffer Borinelli

    (Road Engineering Research Section (RERS), EMIB, Faculty of Applied Engineering, University of Antwerp, 2020 Antwerp, Belgium)

  • Elisabete Freitas

    (ISISE, Department of Civil Engineering, University of Minho, 4800-058 Guimarães, Portugal)

  • Vítor M. C. F. Cunha

    (ISISE, Institute of Science and Innovation for Bio-Sustainability (IB-S), Department of Civil Engineering, University of Minho, 4800-058 Guimarães, Portugal)

  • Vasco Teixeira

    (Centre of Physics of Minho and Porto Universities (CF-UM-UP), Azurém Campus, University of Minho, 4800-058 Guimarães, Portugal)

  • Manuel F. M. Costa

    (Centre of Physics of Minho and Porto Universities (CF-UM-UP), Gualtar Campus, University of Minho, 4710-057 Braga, Portugal)

  • Joaquim O. Carneiro

    (Centre of Physics of Minho and Porto Universities (CF-UM-UP), Azurém Campus, University of Minho, 4800-058 Guimarães, Portugal)

Abstract

The sustainable development of our societies demands strong efforts on scientific and technological research while informing and educating students and the general population. Air pollution and road safety hazards constitute two main public health problems that are insufficiently addressed pedagogically. With this work, we aim to contribute to tackeling the problem by presenting the results of scientific research on the development of photocatalytic, superhydrophobic, and self-cleaning recycled asphalt mixtures to achieve an eco-social friendly and smart material able to mitigate socioenvironmental impacts. The functionalization of asphalt is implemented by spraying particles’ solutions over a conventional AC 10, then evaluated by dye degradation and wettability. Firstly, different particles’ solutions (with nano-TiO 2 and/or micro-PTFE under water, ethyl alcohol, and dimethyl ketone) were sprayed to select the best solution (BS), which was composed of TiO 2 -PTFE (4 g/L each) in ethyl alcohol. Two successive spraying coatings (diluted epoxy resin and BS) were performed over conventional and recycled AC 10 (with reclaimed asphalt pavement and steel slags). Their efficiency decreases with the highest resin amounts. The best results were obtained with 0.25 g resin and BS. For the lowest resin amount, all mixtures achieved superhydrophobicity and performed similarly regarding wettability.

Suggested Citation

  • Iran Rocha Segundo & Behzad Zahabizadeh & Salmon Landi & Orlando Lima & Cátia Afonso & Jaffer Borinelli & Elisabete Freitas & Vítor M. C. F. Cunha & Vasco Teixeira & Manuel F. M. Costa & Joaquim O. Ca, 2022. "Functionalization of Smart Recycled Asphalt Mixtures: A Sustainability Scientific and Pedagogical Approach," Sustainability, MDPI, vol. 14(1), pages 1-19, January.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:1:p:573-:d:718305
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    References listed on IDEAS

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    1. Marinella Giunta & Dario Lo Bosco & Giovanni Leonardi & Francesco Scopelliti, 2019. "Estimation of Gas and Dust Emissions in Construction Sites of a Motorway Project," Sustainability, MDPI, vol. 11(24), pages 1-14, December.
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