Antifouling Mortars for Underwater Restoration

This research has focused on the assessment of the compositional features and mechanical and antifouling performances of two different mortars formulated for an underwater setting, and which contain Mg(OH) as an antifouling agent. Regarding the mechanical characterization, the uniaxial compressive s...

Descripción completa

Detalles Bibliográficos
Autores: Ricca, M., Ruffolo, S.A., La Russa, M.F., Rispoli, C., Grifa, C., Aránzazu Sierra Fernández, Fort González, Rafael, Randazzo, L.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/276426
Acceso en línea:http://hdl.handle.net/10261/276426
Access Level:acceso abierto
Palabra clave:magnesium hydroxide
mortars
submerged sites
biofouling
geomaterials
restoration
Nanoparticles
Descripción
Sumario:This research has focused on the assessment of the compositional features and mechanical and antifouling performances of two different mortars formulated for an underwater setting, and which contain Mg(OH) as an antifouling agent. Regarding the mechanical characterization, the uniaxial compressive strength and flexural strength were measured. The composition of the materials was explored by differential thermal/thermogravimetric analysis (DTA-TG), X-ray diffraction analysis (XRPD), and scanning electronic microscopy (SEM) coupled with EDS microanalysis. The assessment of the biological colonization was evaluated with colorimetric analysis and image analysis. The results suggest that both mortars have good mechanical resistance once set underwater. Moreover, the adding of Mg(OH) improves the resistance toward biofouling; this was observed both in laboratory and sea-exposed specimens.