Environmentally friendly surface treatments used to avoid algal colonization on mortars

Biodeterioration is a major problem with construction materials. Presence of biofilm, biofouling, or biopatina, causes decomposition processes of the material both on its surface manifesting as undesirable aesthetic alter ations as well as within the material. In this study, two environmentally frie...

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Autores principales: Correa, María Verónica, Rastelli, Silvia Elena, Gómez de Saravia, Sandra Gabriela
Formato: Articulo
Lenguaje:Inglés
Publicado: 2024
Materias:
Química
Mortar
Biofilms
Biodeterioration
Tymol
Surface treatments
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/169427
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-169427
record_format dspace
spelling I19-R120-10915-1694272024-09-03T04:10:30Z http://sedici.unlp.edu.ar/handle/10915/169427 Environmentally friendly surface treatments used to avoid algal colonization on mortars Correa, María Verónica Rastelli, Silvia Elena Gómez de Saravia, Sandra Gabriela 2024-01-31 2024-09-02T16:55:38Z en Química Mortar Biofilms Biodeterioration Tymol Surface treatments Biodeterioration is a major problem with construction materials. Presence of biofilm, biofouling, or biopatina, causes decomposition processes of the material both on its surface manifesting as undesirable aesthetic alter ations as well as within the material. In this study, two environmentally friendly treatments were evaluated in an attempt to prevent the growth of phototrophic biofilms on mortar surfaces. Those surfaces were treated using a water-based solution with surfactants with and without thymol 1 %. The algaecide effect was evaluated, leaving a set of samples without treatment as a control of algae growth. The inoculum used in the tests was an algae community isolated from the mausoleum studied. Samples were inoculated with this community and they were incubated under controlled photoperiod and temperature conditions for 30, 60 and 120 days. For surfaces treatments stability assay, other mortars samples were inoculated 30, 60 and 90 days after surface treatments were applied. For surfaces studies were used stereoscopic microscopy, Environmental Scanning Electron Mi croscopy and epifluorescence microscopy, also surface contact angle and colour and bright were measured. Both treatments inhibited algal growth in mortar surfaces. We propose that these surface treatments would be potentially useful for cleaning and preventing phototrophic formation of biofilms on historic buildings. Centro de Investigación y Desarrollo en Tecnología de Pinturas Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Mortar
Biofilms
Biodeterioration
Tymol
Surface treatments
spellingShingle Química
Mortar
Biofilms
Biodeterioration
Tymol
Surface treatments
Correa, María Verónica
Rastelli, Silvia Elena
Gómez de Saravia, Sandra Gabriela
Environmentally friendly surface treatments used to avoid algal colonization on mortars
topic_facet Química
Mortar
Biofilms
Biodeterioration
Tymol
Surface treatments
description Biodeterioration is a major problem with construction materials. Presence of biofilm, biofouling, or biopatina, causes decomposition processes of the material both on its surface manifesting as undesirable aesthetic alter ations as well as within the material. In this study, two environmentally friendly treatments were evaluated in an attempt to prevent the growth of phototrophic biofilms on mortar surfaces. Those surfaces were treated using a water-based solution with surfactants with and without thymol 1 %. The algaecide effect was evaluated, leaving a set of samples without treatment as a control of algae growth. The inoculum used in the tests was an algae community isolated from the mausoleum studied. Samples were inoculated with this community and they were incubated under controlled photoperiod and temperature conditions for 30, 60 and 120 days. For surfaces treatments stability assay, other mortars samples were inoculated 30, 60 and 90 days after surface treatments were applied. For surfaces studies were used stereoscopic microscopy, Environmental Scanning Electron Mi croscopy and epifluorescence microscopy, also surface contact angle and colour and bright were measured. Both treatments inhibited algal growth in mortar surfaces. We propose that these surface treatments would be potentially useful for cleaning and preventing phototrophic formation of biofilms on historic buildings.
format Articulo
Articulo
author Correa, María Verónica
Rastelli, Silvia Elena
Gómez de Saravia, Sandra Gabriela
author_facet Correa, María Verónica
Rastelli, Silvia Elena
Gómez de Saravia, Sandra Gabriela
author_sort Correa, María Verónica
title Environmentally friendly surface treatments used to avoid algal colonization on mortars
title_short Environmentally friendly surface treatments used to avoid algal colonization on mortars
title_full Environmentally friendly surface treatments used to avoid algal colonization on mortars
title_fullStr Environmentally friendly surface treatments used to avoid algal colonization on mortars
title_full_unstemmed Environmentally friendly surface treatments used to avoid algal colonization on mortars
title_sort environmentally friendly surface treatments used to avoid algal colonization on mortars
publishDate 2024
url http://sedici.unlp.edu.ar/handle/10915/169427
work_keys_str_mv AT correamariaveronica environmentallyfriendlysurfacetreatmentsusedtoavoidalgalcolonizationonmortars
AT rastellisilviaelena environmentallyfriendlysurfacetreatmentsusedtoavoidalgalcolonizationonmortars
AT gomezdesaraviasandragabriela environmentallyfriendlysurfacetreatmentsusedtoavoidalgalcolonizationonmortars
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