Professional paper

The "Vrla" HE plant entry structure concrete restoration

Zoran Grdić orcid.org/0000-0002-0653-210X ; University of Nis, The Faculty of Civil Engineering and Architecture, Aleksandra Medvedeva 14 street, 18000 Nis, Serbia
Gordana Topličić-Ćurčić ; University of Nis, The Faculty of Civil Engineering and Architecture, Aleksandra Medvedeva 14 street, 18000 Nis, Serbia
Nenad Ristić orcid.org/0000-0002-8201-892X ; University of Nis, The Faculty of Civil Engineering and Architecture, Aleksandra Medvedeva 14 street, 18000 Nis, Serbia
Iva Despotović ; Belgrade University College of Applied Studies in Civil Engineering and Geodesy, Hajduk Stankova 2 street, 11000 Belgrade, Serbia

Abstract

The paper presents an example of a structure exposed for a long period of time to the action of several aggressive factors: alternate freezing and thawing, efflorescence and carbonation. Representative samples were taken from the concrete structure of the facility, and the relevant properties of concrete were identified in the laboratory. The analysis of the collected data demonstrated significant deficiencies of the implemented concrete technology during construction of the facility. On this basis, a plan for restoration of the facility was made, and the restoration was accomplished, revitalizing the facility. This example too, demonstrates that implementation of new standards in the field of concrete technology is necessary.

Keywords

concrete; chemical corrosion; physical corrosion; restoration

Hrčak ID:

86749

URI

https://hrcak.srce.hr/86749

Publication date:

19.9.2012.

Article data in other languages: croatian

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