Evaluation of the Performance of Galvanized Steel Support in Construction of Living Wall Systems

Fernando B.  Mainier; Maria Alejandra Rico  Pérez; Leandro V.  Pontual; Ana Lucia Torres Seroa  da Motta

doi:10.4236/ojce.2016.64047

Fernando B. Mainier, Maria Alejandra Rico Pérez, Leandro V. Pontual, Ana Lucia Torres Seroa da Motta

Abstract: Currently, Living Wall Systems (LWSs) are assuming great importance in the built environment, due to environmental and aesthetic advantages, as well as the use of urban residual space and underutilized surfaces of buildings. However, the maintenance and the durability of the materials used have been a challenge for architects and professionals in the field. The aim of this paper is to evaluate the anti-corrosion performance of a steel framing profile, galvanized carbon steel (55% Al-Zn), a sustainable material with easy assembly, to apply LWS in the hot and humid tropical climate of Niterói (Rio de Janeiro, Brazil). In order to create the conditions of the tests, “X” cut were made in Al-Zn coating, sanding, and application of epoxy and glass fiber-reinforced polyester. After the experiments that lasted four months, the 55% Al-Zn coating was analyzed using Scanning Electron Microscope (SEM) and energy dispersive X-ray spectroscopy (EDS). The results of the tests were promising for the use of this galvanized steel for application as a support for green vertical facades. 55% Al-Zn coatings are recommended for marine atmospheres due to their good anti-corrosion performance.

Keywords: Living Wall System (LWS), 55% Al-Zn Coating, Steel Framing, Galvanized Steel, Corrosion

Cite this paper: Mainier, F. , Pérez, M. , Pontual, L. and da Motta, A. (2016) Evaluation of the Performance of Galvanized Steel Support in Construction of Living Wall Systems. Open Journal of Civil Engineering, 6, 566-576. doi: 10.4236/ojce.2016.64047.

References

[1] Mascaró, L. and Mascaró, J.J. (2009) Ambiência urbana (Urban Ambience). Masquatro Editora, Porto Alegre (in Portuguese).

[2] Minke, G. (2004) Techos verdes, Planificación, ejecución y concejos prácticos. Editorial Fin de Siglo, Montevideo, 85 p.

[3] Minks, V. (2013) A rede de design verde urbano-uma alternativa sustentável para megacidades? (The Green Urban Design Network a Sustainable Alternative for Megacities?). Revista Labverde, 7, 121-141 (in Portuguese).

[4] Piano, R. (2008) California Academy of Sciences.
http://www.archdaily.com/6810/california-academy-of-sciences-renzo-piano/

[5] Fedrizzi, L., Rodriguez, F.J., Rossi, S. and Deflorian, F. (2003) Corrosion Study of Industrial Painting Cycles for Garden Furniture. Progress in Organic Coatings, 46, 62-73.
http://dx.doi.org/10.1016/S0300-9440(02)00192-3

[6] Loh, S. (2008) Living Walls—A Way to Green the Built Environment. BEDP Environment Design Guide, 1, 1-7.

[7] Matheus, C., Caetano, F.D.N., Morelli, D.D.O. and Labaki, L.C. (2016) Desempenho térmico de envoltórias vegetadas em edificações no sudeste brasileiro (Thermal Performance of Green Envelopes in Buildings in the Brazilian southeast). Ambiente Construído, 16, 71-81 (in Portuguese).
http://dx.doi.org/10.1590/s1678-86212016000100061

[8] Schmidt, M., Reichmann B. and Steffan, C. (2007) Rainwater Harvesting and Evaporation for Stormwater Management and Energy Conservation. Berlin State Department for Urban Development.
http://www.gebaeudekuehlung.de/SchmidtReichmannSteffan-Urbenviron-Berlin.pdf

[9] Jordan, C.E. and Marder, A.R. (1997) Fe-Zn Phase Formation in Interstitial-Free Steels hot-Dip Galvanized at 450℃: Part I 0.00 wt% Al-Zn Baths. Journal of Materials Science, 32, 5593-5602.
http://dx.doi.org/10.1023/A:1018680625668

[10] Feliu, S. and Barranco, V.X.P.S. (2003) XPS Study of the Surface Chemistry of Conventional Hot-Dip Galvanized Pure Zn, Galvanneal and Zn-Al Alloy Coatings on Steel. Actamaterialia, 51, 5413-5424.
http://dx.doi.org/10.1016/S1359-6454(03)00408-7

[11] ASM International Handbook Committee, Ed. (1994) ASM Handbook: Surface engineering, Vol. 5. ASM International, Ohio.

[12] Schwabe, W.W. (1985) Kalanchoe blossfeldiana. Handbook of Flowering, 3, 217-235.

[13] Mainier, F.B., Leta, F.R. and Feliciano, F.F. (2014) Application of Anticorrosive Techniques Compatible with the Environment to Engineering Education. American Journal of Environmental Engineering, 4, 176-181.
http://dx.doi.org/10.5923/j.ajee.20140406.06

[14] Roberge, P.R. (2000) Handbook of Corrosion Engineering. McGraw-Hill, New York.

[15] Palma, E., Puente, J.M. and Morcillo, M. (1998). The Atmospheric Corrosion Mechanism of 55% Al-Zn Coating on Steel. Corrosion Science, 40, 61-68.
http://dx.doi.org/10.1016/S0010-938X(97)00112-1

[16] Wallinder, I.O., Leygraf, C., Karlen, C., Heijerick, D. and Janssen, C.R. (2001) Atmospheric Corrosion of Zinc-Based Materials: Runoff Rates, Chemical Speciation and Ecotoxicity Effects. Corrosion Science, 43, 809-816.
http://dx.doi.org/10.1016/S0010-938X(00)00136-0