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Article

Research Summary on Characterizing Impact of Environment on Adhesion of Sealed Joints in Façade Applications

Faculty of Civil Engineering, Brno University of Technology, Veveří 331/95, 60200 Brno, Czech Republic
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Materials 2020, 13(21), 4847; https://doi.org/10.3390/ma13214847
Received: 7 September 2020 / Revised: 22 October 2020 / Accepted: 26 October 2020 / Published: 29 October 2020
(This article belongs to the Special Issue Advances in Construction and Building Materials)
The presented paper summarizes the main research findings on the impact of the environment concerning the durability and service life of building joint sealants. The focus is placed on sealed joints in façade applications, which can serve different purposes and can also be several meters long which often intensifies the stresses that the joint needs to withstand and therefore its service life can be significantly shortened. Different approaches, test sample geometries and high-performance sealants, were used in this context to determine the most critical aspects for the studied application sector. The research was divided into three phases where the joints were subjected to (I) artificial weathering in a laboratory environment, (II) real weathering in an external environment, and (III) weathering via a real application that was monitored for almost 4 years. The extensive research scope confirmed one commonly known presumption, that standardized artificial weathering/aging methods are not able, from a long-term perspective, to simulate the impact of a real environment. The most valuable results were obtained in the third phase of the research, where the monitoring of a real façade brought to light completely different conclusions. The joints exposed to the real environment were either completely deteriorated or showed signs of advanced aging. View Full-Text
Keywords: artificial; adhesion; bond; cohesion; durability; frost; shear; stress; temperature; tension artificial; adhesion; bond; cohesion; durability; frost; shear; stress; temperature; tension
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MDPI and ACS Style

Nečasová, B.; Liška, P. Research Summary on Characterizing Impact of Environment on Adhesion of Sealed Joints in Façade Applications. Materials 2020, 13, 4847. https://doi.org/10.3390/ma13214847

AMA Style

Nečasová B, Liška P. Research Summary on Characterizing Impact of Environment on Adhesion of Sealed Joints in Façade Applications. Materials. 2020; 13(21):4847. https://doi.org/10.3390/ma13214847

Chicago/Turabian Style

Nečasová, Barbora, and Pavel Liška. 2020. "Research Summary on Characterizing Impact of Environment on Adhesion of Sealed Joints in Façade Applications" Materials 13, no. 21: 4847. https://doi.org/10.3390/ma13214847

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