Use of Bonded Joints for Fastening Sheet-Metal Components to Contemporary Facades Fitted with an External Thermal Insulation Composite System with Thin-Layer Acrylic Plaster †
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
- White pasty structural acrylic dispersion plaster with the brand name PROFI AKRYLATPUTZ produced by the manufacturer Profibaustoffe CZ, s.r.o., with a bond strength of min. 0.30 MPa;
- Universal primer coating used under the white pasty plaster with the brand name PROFI UNI Putzgrund produced by the manufacturer Profibaustoffe CZ, s.r.o., with a styrene–acrylate binder;
- An adhesive and screed compound for facade thermal insulation boards with the brand name PROFI UNI AM produced by the manufacturer Profibaustoffe CZ, s.r.o., with cement binder and a bonding strength to the solid substrate of min. 0.25 MPa;
- Fibreglass fabric for screed compound with the brand name R117 A101 produced by Saint-Gobain Vertex, s.r.o., with a tensile strength of 2100 N/50 mm;
- A smooth-surfaced cement-bonded particleboard with a thickness of 16 mm with the brand name CETRIS BASIC produced by the manufacturer CIDEM Hranice, a.s., with a transverse tensile strength of min. 0.63 MPa.
2.2. Methods
2.2.1. Preparation of Test Specimens
2.2.2. Adhesion Tests
3. Results
4. Discussion
5. Conclusions
- The research was carried out exclusively under laboratory conditions and it provided interesting results at this initial stage;
- Even small bonded areas could carry significant tensile and shear loads sufficient for the anticipated loads, and the required load capacity of the bonded joint could be determined depending on the bonded area;
- The load capacity of the bonded joint will always depend on the quality of the substrate. In the case of a new plaster implemented in accordance with technological procedures, the use of the technology of additional bonding of any components to the surface of the multi-layer facade may be considered. However, the technology used must be properly tested;
- The obtained results do not yet allow the combinations of the materials used in this research to be declared a proven technology. The validation will continue with the inclusion of other influences acting on facades in outdoor environments. The results will be published separately.
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
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Al | FeZn | Cu | AD | |
---|---|---|---|---|
σadh | 0.614 | 0.694 | 0.585 | 0.849 |
sx | 0.056 | 0.138 | 0.074 | 0.035 |
vx | 9.2 | 19.8 | 12.7 | 4.1 |
ε | 39.8 | 35.5 | 33.3 | 90.1 |
sx | 11.1 | 8.3 | 10.4 | 10.2 |
vx | 27.8 | 23.4 | 31.3 | 11.3 |
Al | FeZn | Cu | AD | |
---|---|---|---|---|
τ | 0.562 | 0.684 | 0.634 | 0.786 |
sx | 0.075 | 0.044 | 0.054 | 0.080 |
vx | 13.3 | 6.5 | 8.5 | 10.2 |
ε | 223.3 | 217.0 | 200.0 | 403.3 |
sx | 18.6 | 22.1 | 24.2 | 69.2 |
vx | 8.3 | 10.2 | 12.1 | 17.2 |
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Šlanhof, J.; Průcha, A.; Nečasová, B.; Boháček, A. Use of Bonded Joints for Fastening Sheet-Metal Components to Contemporary Facades Fitted with an External Thermal Insulation Composite System with Thin-Layer Acrylic Plaster. Mater. Proc. 2023, 13, 36. https://doi.org/10.3390/materproc2023013036
Šlanhof J, Průcha A, Nečasová B, Boháček A. Use of Bonded Joints for Fastening Sheet-Metal Components to Contemporary Facades Fitted with an External Thermal Insulation Composite System with Thin-Layer Acrylic Plaster. Materials Proceedings. 2023; 13(1):36. https://doi.org/10.3390/materproc2023013036
Chicago/Turabian StyleŠlanhof, Jiří, Aleš Průcha, Barbora Nečasová, and Adam Boháček. 2023. "Use of Bonded Joints for Fastening Sheet-Metal Components to Contemporary Facades Fitted with an External Thermal Insulation Composite System with Thin-Layer Acrylic Plaster" Materials Proceedings 13, no. 1: 36. https://doi.org/10.3390/materproc2023013036