Calcium hydroxide nanoparticles coatings applied on cultural heritage materials: Their influence on physical characteristics of earthen plasters
Empreu sempre aquest identificador per citar o enllaçar aquest ítem
http://hdl.handle.net/10045/98760
Títol: | Calcium hydroxide nanoparticles coatings applied on cultural heritage materials: Their influence on physical characteristics of earthen plasters |
---|---|
Autors: | García Vera, Victoria Eugenia | Tenza-Abril, Antonio José | Solak, Afonso M. | Lanzón, Marcos |
Grups d'investigació o GITE: | Tecnología de Materiales y Territorio (TECMATER) |
Centre, Departament o Servei: | Universidad de Alicante. Departamento de Ingeniería Civil |
Paraules clau: | Calcium hydroxide | Consolidation | Nanoparticles coatings | Durability | Nanolime suspensions |
Àrees de coneixement: | Ingeniería de la Construcción |
Data de publicació: | 28-de febrer-2020 |
Editor: | Elsevier |
Citació bibliogràfica: | Applied Surface Science. 2020, 504: 144195. doi:10.1016/j.apsusc.2019.144195 |
Resum: | Calcium hydroxide nanoparticles (nanolime) are a novel solution for consolidating clay-based plasters and adobes in cultural heritage constructions. The suspension is applied as a coating and fully compatible with calcareous earthen materials. Ca(OH)2 nanoparticles (NPs) are transformed into protective CaCO3 coatings due to a carbonation reaction. This work aims to study the effectiveness of Ca(OH)2 NPs coatings in protecting the surface of earthen plasters. To do this, the effect of nanolime on surface consolidation, water permeability and durability in front of rain action is evaluated. It was found that the treatment improved the superficial cohesion and reduced water permeability of plasters due to formation of calcareous coatings and partial obstruction of pores on the surface. In contrast, the effectiveness of the treatment is not demonstrated against rainwater and acid environments (HCl). Finally, acid rain simulation (H2SO4) led to deposition of protective films of gypsum that might delay the plaster deterioration in the long term. |
URI: | http://hdl.handle.net/10045/98760 |
ISSN: | 0169-4332 (Print) | 1873-5584 (Online) |
DOI: | 10.1016/j.apsusc.2019.144195 |
Idioma: | eng |
Tipus: | info:eu-repo/semantics/article |
Drets: | © 2019 Elsevier B.V. |
Revisió científica: | si |
Versió de l'editor: | https://doi.org/10.1016/j.apsusc.2019.144195 |
Apareix a la col·lecció: | INV - TECMATER - Artículos de Revistas |
Arxius per aquest ítem:
Arxiu | Descripció | Tamany | Format | |
---|---|---|---|---|
2020_Garcia-Vera_etal_ApplSurfaceSci_final.pdf | Versión final (acceso restringido) | 2,24 MB | Adobe PDF | Obrir Sol·licitar una còpia |
Tots els documents dipositats a RUA estan protegits per drets d'autors. Alguns drets reservats.