IDEAS home Printed from https://ideas.repec.org/a/gam/jsusta/v16y2024i2p816-d1321139.html
   My bibliography  Save this article

Hydrophobic Coatings’ Efficiency and Limestones’ Resistance to Salt Crystallisation

Author

Listed:
  • Carla Lisci

    (HERCULES and IN2PAST Associated Laboratories, Institute for Advanced Studies and Research, University of Évora, Largo Marquês de Marialva 8, 7000-809 Évora, Portugal
    Geosciences Department, School of Sciences and Technology, University of Évora, Rua Romão Ramalho 59, 7000-671 Évora, Portugal)

  • Carlos Galhano

    (GEOBIOTEC and Earth Sciences Department, NOVA School of Science & Technology, 2829-516 Caparica, Portugal)

  • Joaquim Simão

    (GEOBIOTEC and Earth Sciences Department, NOVA School of Science & Technology, 2829-516 Caparica, Portugal)

  • Vera Pires

    (HERCULES and IN2PAST Associated Laboratories, Institute for Advanced Studies and Research, University of Évora, Largo Marquês de Marialva 8, 7000-809 Évora, Portugal
    LEM, Laboratório de Ensaios Mecânicos da Universidade de Évora, Rua Romão Ramalho 59, 7000-671 Évora, Portugal)

  • Fabio Sitzia

    (HERCULES and IN2PAST Associated Laboratories, Institute for Advanced Studies and Research, University of Évora, Largo Marquês de Marialva 8, 7000-809 Évora, Portugal
    Geosciences Department, School of Sciences and Technology, University of Évora, Rua Romão Ramalho 59, 7000-671 Évora, Portugal)

  • José Mirão

    (HERCULES and IN2PAST Associated Laboratories, Institute for Advanced Studies and Research, University of Évora, Largo Marquês de Marialva 8, 7000-809 Évora, Portugal
    Geosciences Department, School of Sciences and Technology, University of Évora, Rua Romão Ramalho 59, 7000-671 Évora, Portugal)

Abstract

Stone deterioration is significantly influenced by the process of salt crystallisation. The expansion of salt crystals on a porous framework exerts pressure on the solid fraction, causing the stone to deteriorate when the internal pressure of salt surpasses the stone’s strength. Protective coatings are employed to effectively hinder or substantially reduce the penetration of water and saline solutions. This study attempts to evaluate the effectiveness and long-term durability of limestones protected with hydrophobic coatings, focusing on their resistance to salt damage. The investigation followed the specifications set by the standard EN 12370:2019 and EN 14147:2003, which assesses the resistance of natural stone to salt crystallisation. The findings of this study indicate the conservation of physical–mechanical properties after ageing tests. In parallel, measurements of the static contact angle and the measurement of quality indexes revealed that the coatings maintained a certain level of hydrophobicity even after undergoing salt weathering tests, maintaining the good quality of the stones.

Suggested Citation

  • Carla Lisci & Carlos Galhano & Joaquim Simão & Vera Pires & Fabio Sitzia & José Mirão, 2024. "Hydrophobic Coatings’ Efficiency and Limestones’ Resistance to Salt Crystallisation," Sustainability, MDPI, vol. 16(2), pages 1-22, January.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:2:p:816-:d:1321139
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2071-1050/16/2/816/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2071-1050/16/2/816/
    Download Restriction: no
    ---><---

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jsusta:v:16:y:2024:i:2:p:816-:d:1321139. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.