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  [ATENA] REINFORCEMENT CORROSION IN CONCRETE DUE TO CARBONATION AND CHLORIDE INGRESS UP AND BEYOND INDUCTION PERIOD
  글쓴이 : 관리자     날짜 : 16-12-08 15:04     조회 : 644    
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REINFORCEMENT CORROSION IN CONCRETE DUE TO CARBONATION AND CHLORIDE INGRESS UP AND BEYOND INDUCTION PERIOD

K. Hájková1, L. Jendele2, V. Šmilauer1, T. Sajdlová2, J. Červenka2

1 Czech Technical University in Prague, Faculty of Civil Engineering  Thákurova 7; 166 29, Prague 6; CZ 
e-mail: {karolina.hajkova, vit.smilauer@fsv.cvut.cz

2 Červenka Consulting s.r.o. 
Na Hřebenkách 55, 150 00, Prague, CZ
{libor.jendele, tereza.sajdlova, jan.cervenka@cervenka.cz

Abstract. Carbonation and chloride ingress are considered to be the most severe mechanisms for steel corrosion in reinforced concrete structures. Here, the service life is traditionally di-vided into two main phases; the initial and the propagation ones. The initial phase was ex-plored recently and the results show high influence of cracks on accelerating of carbonation and chloride ingress in concrete structures. Our model focuses now on the propagation peri-od and predicts xcorr for radial corrosion depth, including cracking and spalling of concrete cover. The presented models were implemented in ATENA software and demonstrate their application on a prestressed box-girder bridge. The simulation shows reinforcement corro-sion due to carbonation and chloride ingress, and its impact on a bridge behavior during ULS analysis.