Abstract:
The aim of the study is to assess the current condition of the exposed concrete in the outer façades of the Vilanova Artigas building, one of the most important Brazilian modern architectural heritage which has recently completed 50 years of service life. The analysis on the effectiveness of previews interventions, environmental aggressiveness and local inspections has provided qualified information for conduct physical, chemical and electrochemical tests. The results indicated that the concrete surface is naturally porous and irregular and also fragmented by the presence of patch repairs considered to be flawed. Reinforcement cover is variable and susceptible to corrosion, induced by carbonation, confirmed in some regions by electrochemical measurements. New intervention and complementary studies were proposed, considering the importance of preserving the original aspect of the exposed concrete and the mitigation of the ongoing corrosion.
Reference:
ARAUJO, Adriana de; OLIVEIRA, Claudio de Andrade; SIMÃO, Tatiana R. da Silva; PANOSSIAN, Zehbour. Inspection of the apparent concrete façades of Vilanova Artigas, modern Brazilian heritage building with 50 years of service life. In: INTERNATIONAL CORROSION CONGRESS, 21., AND THE INTERNATIONAL CORROSION MEETING, 8., 2021, São Paulo. Proceedings.. 10p.
Log into BiblioInfo/IPT-DAIT to access the text in PDF. Document is password protected, ask Customer Service/Library-DAIT/IPT:
https://escriba.ipt.br/pdf_restrito/177387.pdf
The aim of the study is to assess the current condition of the exposed concrete in the outer façades of the Vilanova Artigas building, one of the most important Brazilian modern architectural heritage which has recently completed 50 years of service life. The analysis on the effectiveness of previews interventions, environmental aggressiveness and local inspections has provided qualified information for conduct physical, chemical and electrochemical tests. The results indicated that the concrete surface is naturally porous and irregular and also fragmented by the presence of patch repairs considered to be flawed. Reinforcement cover is variable and susceptible to corrosion, induced by carbonation, confirmed in some regions by electrochemical measurements. New intervention and complementary studies were proposed, considering the importance of preserving the original aspect of the exposed concrete and the mitigation of the ongoing corrosion.
Reference:
ARAUJO, Adriana de; OLIVEIRA, Claudio de Andrade; SIMÃO, Tatiana R. da Silva; PANOSSIAN, Zehbour. Inspection of the apparent concrete façades of Vilanova Artigas, modern Brazilian heritage building with 50 years of service life. In: INTERNATIONAL CORROSION CONGRESS, 21., AND THE INTERNATIONAL CORROSION MEETING, 8., 2021, São Paulo. Proceedings.. 10p.
Log into BiblioInfo/IPT-DAIT to access the text in PDF. Document is password protected, ask Customer Service/Library-DAIT/IPT:
https://escriba.ipt.br/pdf_restrito/177387.pdf
