RT info:eu-repo/semantics/article
T1 Adaptation of a standard method for water absorption testing of stone materials: the case of a hydrophilic protective coating
A1 Búrdalo Salcedo, Gabriel
A1 Rodríguez, Indira
A1 Fernández Raga, María
A1 Fernández Raga, Sagrario
A1 Rodríguez Fernández, Carlos
A1 González Domínguez, José Miguel
K1 Porous materials
K1 Porosity
K1 Porosidad
K1 Adsorción
K1 Building, Stone
K1 Piedra de construcción
K1 Monuments - Conservation et restauration
K1 Monumentos históricos - Conservación y restauración
K1 Building materials
K1 Construcción - Materiales
K1 Coatings
K1 Revestimientos
K1 Graphene - Industrial applications
K1 Grafeno
K1 Materials science
K1 6201 Arquitectura
K1 5312.03 Construcción
K1 3305 Tecnología de la Construcción
K1 3312 Tecnología de Materiales
AB The historical stone heritage that we inherit must be passed on to future generations, not only in the same conditions that we found it but, if possible, in better ones. Construction also demands better and more durable materials, often stone. The protection of these materials requires knowledge of the types of rocks and their physical properties. The characterization of these properties is often standardized to ensure the quality and reproducibility of the protocols. These must be approved by entities whose purpose is to improve the quality and competitiveness of companies and to protect the environment. Standardized water absorption tests could be envisaged to test the effectiveness of certain coatings in protecting natural stone against water penetration, but we found that some steps of these protocols neglect any surface modification of the stones, and hence may not be completely effective when a hydrophilic protective coating (i.e., graphene oxide) is present. In this work, we analyze the UNE 13755/2008 standard for water absorption and propose alternative steps to adapt the norm for use with coated stones. The properties of coated stones may invalidate the interpretation of the results if the standard protocol is applied as is, so here we pay special attention to the characteristics of the coating applied, the type of water used for the test, the materials used, and the intrinsic heterogeneity of the specimens.
PB MDPI
SN 1996-1944
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/68816
UL https://uvadoc.uva.es/handle/10324/68816
LA eng
NO Materials, 2023, Vol. 16, Nº. 12, 4228
NO Producción Científica
DS UVaDOC
RD 27-jul-2024