Investigation of façade coatings containing algae-prone fillers

Author:

Heinrich Holger1ORCID,Len Adél23,Venzmer Helmuth4

Affiliation:

1. Marcel Breuer Doctoral School, Faculty of Engineering and Information Technology, University of Pécs, Pécs, Hungary

2. Department of Civil Engineering, Institute of Smart Technology and Engineering, Faculty of Engineering and Information Technology, University of Pécs, Pécs, Hungary

3. Department of Neutron Spectroscopy, Center for Energy Research, Budapest, Hungary

4. Department of Civil Engineering, University of Applied Sciences, Technology, Business and Design in Wismar, Wismar, Germany

Abstract

Abstract Algae are an evolutionary model of success and colonize all suitable ecological niches including building material surfaces that have favorable characteristics. In the last 25 years, building physics measures were developed to reduce water availability, especially on external thermal insulation composite systems. Investigations into the influence of coating formulations have so far primarily focused on binder systems, biocides and hygrothermal properties. Research on the algal susceptibility due to the fillers is not to be found, but these regularly constitute a large proportion of final coatings. The present work investigates the influence of magnesium-containing fillers in the process of algal colonization of free-weathered façade coatings and a defense-strategy by water-activated pigment composition.

Publisher

Akademiai Kiado Zrt.

Subject

Computer Science Applications,General Materials Science,Modeling and Simulation,Civil and Structural Engineering,Software

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3. Experimental studies – Building physics, investigation in condensation water on plaster surfaces;T. Steffgen,2019

4. Effect of microbial weathering on carbonate rocks;B. Lian,2008

5. Dust binding – Wet adhesion;C. Rüger,2016

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