Advanced Coatings for Buildings - Challenges and Opportunities

A special issue of Coatings (ISSN 2079-6412).

Deadline for manuscript submissions: closed (31 October 2022) | Viewed by 21894

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Guest Editor
Universidad El Bosque, Decanatura Facultad de Ingeniería, Av. Cra 9 No. 131 A - 02, Bogotá, Colombia
Interests: green walls and roofs; photocatalytic materials; nanomaterials; recycling in concrete
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Department of Civil Engineering, Instituto Superior Técnico, Universidade de Lisboa, Avenue Rovisco Pais, 1049-001 Lisboa, Portugal
Interests: innovative and sustainable construction; aerogel-based composites; maritime and agricultural wastes
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Department of Materials Science and Engineering, National Institute of Technology (KOSEN), Suzuka College, Suzuka, Mie, Japan
Interests: biofilm engineering; environmental friendly surface engineering; creative engineering
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Special Issue Information

Dear Colleagues,

New trends in coatings designed for buildings are needed, including technical, economical and sustainable approaches to the development of new coating solutions.

Multiperformance protective coatings are increasing, and are used in building applications (both in new construction and in rehabilitation) to improve durability and to comply with sustainability requirements. The study of modern protective coatings is based on the interrelation between the scientific and engineering disciplines by means of the advanced techniques for material characterization.

Additionally, the webinar on “Advanced Coating for Buildings” has been held in the frame of the e-book launch on “Advanced Coating for Buildings”, which was edited by Professors Aníbal Maury-Ramírez from Colombia, Inês Flores Colen from Portugal and Hideyuki Kanematsu from Japan on Wednesday 30 September 2020.

This is the expansion of the Special Issue Advanced Coatings for Buildings, and the purpose is to provide recent research works on advanced protective coatings for buildings based on multidisciplinary knowledge in this field, and to benefit scientists, practitioners, and other professionals who are interested in the development of new and sustainable protective coatings solutions for buildings.

In particular, the topics of interest include but are not limited to the following:

  • Nanomaterials-based coatings;
  • Multifunctional coatings;
  • Bio-based protective coatings;
  • Smart protective coatings;
  • Sustainable protective coatings;
  • Low-embodied energy protective coatings;
  • Ecotoxicity on protective coatings;
  • Durable protective coatings;
  • Recycled protective coatings.

Dr. Anibal C. Maury-Ramirez
Prof. Dr. Inês Flores-Colen
Prof. Dr. Hideyuki Kanematsu
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Coatings is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (5 papers)

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Research

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21 pages, 4295 KiB  
Article
The Use of Fibreglass Mesh in the Experimental Characterisation of Applied Coating Mortars
by Rafael Travincas, Poliana Bellei, Isabel Torres, Inês Flores-Colen, Gina Matias and Dora Silveira
Coatings 2022, 12(8), 1091; https://doi.org/10.3390/coatings12081091 - 1 Aug 2022
Cited by 3 | Viewed by 1320
Abstract
Mortars are still among the most used wall coatings, whether lime-based or cement-based or traditional and prepared in situ or pre-dosed. When these mortars are formulated and characterized, the influence of the substrate on their characteristics is not taken into account. To study [...] Read more.
Mortars are still among the most used wall coatings, whether lime-based or cement-based or traditional and prepared in situ or pre-dosed. When these mortars are formulated and characterized, the influence of the substrate on their characteristics is not taken into account. To study the influence of the substrate on the mortar characteristics, it is necessary to apply the mortar on the substrate, and after its hardening process, to detach it, test it, and then compare its characteristics with those of standard specimens subjected to standard tests. The central problem focuses on detaching the mortar without damaging it, in order to obtain specimens suitable for testing. For this, a fibreglass mesh, positioned at the mortar–substrate interface, can be used to facilitate the detachment in the experimental program. The objective of the present study is to understand if the fibreglass mesh influences the characteristics of the detached mortar. The methodology adopted was as follows: mortars were applied to the substrates, both using the mesh (with the net positioned at the mortar–substrate interface) and without using the mesh, and after hardening, they were detached and tested; then, the independent sample t-test was used to evaluate the differences between the results obtained for the mortars applied with the mesh and without the mesh. As a result, it was concluded that the use of the mesh does not significantly influence the macrostructural properties studied. The relevance of the present study lies in the development of an experimental methodology that allows for the characterization of mortar’s behaviour after its application on the substrate, i.e., that enables the substrate’s influence to be considered in the formulation of each mortar. Full article
(This article belongs to the Special Issue Advanced Coatings for Buildings - Challenges and Opportunities)
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20 pages, 5078 KiB  
Article
Novel Alkali-Activated Materials with Photocatalytic and Bactericidal Properties Based on Ceramic Tile Waste
by Ashley Bonilla, Mónica A. Villaquirán-Caicedo and Ruby Mejía de Gutiérrez
Coatings 2022, 12(1), 35; https://doi.org/10.3390/coatings12010035 - 28 Dec 2021
Cited by 6 | Viewed by 1947
Abstract
Ceramics tile wastes (CWs) were mechanically conditioned for the preparation of alkali-activated hybrid-cements from CW (90 wt.%) and Portland cement (10 wt.%) mixtures using sodium silicate (SS) + NaOH as alkaline activators. Molar ratios of SiO2/Al2O3 (6.3 to [...] Read more.
Ceramics tile wastes (CWs) were mechanically conditioned for the preparation of alkali-activated hybrid-cements from CW (90 wt.%) and Portland cement (10 wt.%) mixtures using sodium silicate (SS) + NaOH as alkaline activators. Molar ratios of SiO2/Al2O3 (6.3 to 7.7) and Na2O/SiO2 (0.07 to 0.16) were used. The cements were prepared at room temperature (25 °C) and characterized by mechanical and physical properties and microstructure. The optimized cement was used for the preparation of novel photoactivated composite materials by incorporating 5 and 10 wt.% TiO2 (Ti) and ZnO (Z) nanoparticles, and its self-cleaning and bactericidal properties were evaluated by means of the degradation of rhodamine-B (Rh-B) and the growth inhibition of Klebsiella pneumoniae and Pseudomonas aeruginosa bacteria. The results of this study showed that the 100SS-5Z and 50SS:50G-10Ti cements have an effective photocatalytic activity for Rh-B degradation of 98.4% and 76.4%, respectively, after 24 h. Additionally, the 100SS-5Z and 50SS:50G-10Ti cement pastes and their respective mortars were effective in inhibiting the growth of Pseudomonas Aeruginosa and Klebsiella pneumoniae bacterial strains, evidenced by the formation of bacterial inhibition halos around the sample discs. Finally, these results are novel, and open the possibility of using constructions and demolition tile waste in high proportions for the elaboration of new rendering mortar with innovative properties. Full article
(This article belongs to the Special Issue Advanced Coatings for Buildings - Challenges and Opportunities)
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15 pages, 2753 KiB  
Article
Impact of Water-Repellent Products on the Moisture Transport Properties and Mould Susceptibility of External Thermal Insulation Composite Systems
by Renata Roncon, Giovanni Borsoi, João L. Parracha, Inês Flores-Colen, Rosário Veiga and Lina Nunes
Coatings 2021, 11(5), 554; https://doi.org/10.3390/coatings11050554 - 8 May 2021
Cited by 13 | Viewed by 3403
Abstract
External Thermal Insulation Composite Systems (ETICS) are constructive solutions widely used to increase the thermal insulation in new and retrofitted buildings. However, these systems can present several anomalies due to their constant exposure to weathering agents and anthropic factors. Water is generally the [...] Read more.
External Thermal Insulation Composite Systems (ETICS) are constructive solutions widely used to increase the thermal insulation in new and retrofitted buildings. However, these systems can present several anomalies due to their constant exposure to weathering agents and anthropic factors. Water is generally the major cause of degradation. Thus, the application of water-repellent products can minimize the appearance of anomalies and increase the durability of the systems. In this paper, acrylic-based and siloxane-based hydrophobic products were applied to ETICS, with the aim of assessing the compatibility, effectiveness, and durability of these products. The moisture transport properties and mould susceptibility were assessed through laboratory tests on untreated and treated specimens. The durability of the hydrophobic treatments was also evaluated through artificial aging tests (heat-cold and freeze-thaw cycles). Results show that the protection products generally decreased water absorption, slightly decreased the drying rate, and presented adequate water vapor permeability. After aging, the products still had reasonable effectiveness and, with one exception, improved the water vapor diffusion of the systems. Additionally, ETICS underwent an alteration in the finishing coat (possible modification of the porosity) due to the aging cycles. No clear linear correlation was found between the contact angle values and water absorption results, evidencing the influence of other factors related to the composition of the water-repellent products. Full article
(This article belongs to the Special Issue Advanced Coatings for Buildings - Challenges and Opportunities)
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Review

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21 pages, 5161 KiB  
Review
Challenges and Opportunities of Using Titanium Dioxide Photocatalysis on Cement-Based Materials
by Angélica María Castro-Hoyos, Manuel Alejandro Rojas Manzano and Aníbal Maury-Ramírez
Coatings 2022, 12(7), 968; https://doi.org/10.3390/coatings12070968 - 7 Jul 2022
Cited by 18 | Viewed by 4370
Abstract
Since the early seventies with the work of Akira Fujishima on photocatalytic and superhydrophilic properties of titanium dioxide (TiO2), also known as the Honda–Fujishima effect, photocatalysis has been investigated and progressively implemented in cement-based materials towards the development of self-cleaning, air-purifying [...] Read more.
Since the early seventies with the work of Akira Fujishima on photocatalytic and superhydrophilic properties of titanium dioxide (TiO2), also known as the Honda–Fujishima effect, photocatalysis has been investigated and progressively implemented in cement-based materials towards the development of self-cleaning, air-purifying and antiseptic materials, buildings and infrastructure. Although important achievements have been obtained at the laboratory scale, their real scale application has had some limitations mainly due to the low efficiencies obtained during adverse environmental conditions. Therefore, this article presents the challenges and opportunities of using of titanium dioxide in cement-based materials towards the development of truly efficient sustainable building materials. First, TiO2 photocatalysis and its incorporation in cementitious materials are presented. Second, self-cleaning, air-purifying and antimicrobial properties are discussed in terms of the lab and pilot project results. Third, conclusions regarding the different multifunctional properties are given towards the real application of TiO2 photocatalysis. Particularly, complementary technologies and strategies are presented in order to increase the above-mentioned multifunctional properties. Full article
(This article belongs to the Special Issue Advanced Coatings for Buildings - Challenges and Opportunities)
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19 pages, 1779 KiB  
Review
Environmental Factors Causing the Development of Microorganisms on the Surfaces of National Cultural Monuments Made of Mineral Building Materials—Review
by Elżbieta Stanaszek-Tomal
Coatings 2020, 10(12), 1203; https://doi.org/10.3390/coatings10121203 - 10 Dec 2020
Cited by 34 | Viewed by 8850
Abstract
The ability of microorganisms to degrade building materials depends on several factors. Biological corrosion occurs in close dependence with chemical and physical factors affecting microorganisms. The growth and development of microorganisms is stimulated by external stimuli, i.e., environmental factors. Microorganisms have a relatively [...] Read more.
The ability of microorganisms to degrade building materials depends on several factors. Biological corrosion occurs in close dependence with chemical and physical factors affecting microorganisms. The growth and development of microorganisms is stimulated by external stimuli, i.e., environmental factors. Microorganisms have a relatively large tolerance range for changes in environmental conditions. Under the right conditions, microorganisms thrive very well. The adverse effects may cause the inhibition of cell growth, damage, or lead to the death of the microorganism. Considering the impact of environmental factors on microorganisms, it is not possible to identify the most important of them. The result effect of overlapping factors determines the possibility of the growth of certain microorganisms. The main factors affecting the growth are temperature, humidity, hydrogen ion concentration in the environment, oxidoreductive potential, water activity in the environment, and hydrostatic pressure. This article provides a comprehensive overview of the factors causing biodeterioration. The influence of external/internal environment on the surface of cultural monuments made of mineral building materials, i.e., stone, concrete, mortar, etc., is presented. Full article
(This article belongs to the Special Issue Advanced Coatings for Buildings - Challenges and Opportunities)
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