Use of nano-SiO2 as a preventive maintenance surface treatment in concrete aged by carbonation

  • Laura Vaca Arciga UNIVERSIDAD AUTÓNOMA DE NUEVO LEÓN FACULTAD DE INGENIERÍA CIVIL
  • Dulce Cruz Moreno UNIVERSIDAD AUTÓNOMA DE NUEVO LEÓN FACULTAD DE INGENIERÍA CIVIL
  • Gerardo FaJardo San Miguel UNIVERSIDAD AUTÓNOMA DE NUEVO LEÓNFACULTAD DE INGENIERÍA CIVIL http://orcid.org/0000-0002-6630-9276
  • Ricardo Orozco Cruz UNIVERSIDAD VERACRUZANA - INSTITUTO DE INGENIERÍA
  • Francisco Tienda Resendez UNIVERSIDAD AUTÓNOMA DE NUEVO LEÓN - FACULTAD DE INGENIERÍA CIVIL
DOI: https://doi.org/10.21041/ra.v10i3.487
Keywords: surface treatment; prevention; Nano SiO2; concrete; carbonation

Abstract

This study aims to evaluate the use of silicon base (NS) and functionalized (NF) nanoparticles as emerging preventive surface treatment (ST) in reinforced concrete specimens. The specimens were fabricated with a water/cement (w/c) of 0.65 and subjected to a previous aging period through exposure to CO2. Subsequently, two different variants of the treatment were applied by spraying (using a 0.1% dispersion of nanoparticles in water) and then re-applied to carbonation. The carbonation depth and contact angle results indicate that there is an influence between the degree of aging and the efficiency of each treatment.

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Author Biography

Gerardo FaJardo San Miguel, UNIVERSIDAD AUTÓNOMA DE NUEVO LEÓNFACULTAD DE INGENIERÍA CIVIL

PROFESOR DE TIEMPO COMPLETO TITULAR B DE LA UNIVERSIDAD AUTÓNOMA DE NUEVO LEÓN

 

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Published
2020-09-01
How to Cite
Issue
Vol. 10 No. 3 (2020): Volume 10, Issue 3, 2020
Section
Basic Research

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