Publication result detail

Approximation of the bridge deck diffusion coefficient and surface chloride concentration from field data

KONEČNÝ, P.; LEHNER, P.; VOŘECHOVSKÁ, D.; ŠOMODÍKOVÁ, M.; HORŇÁKOVÁ, M.; ROVNANÍKOVÁ, P.

Original Title

Approximation of the bridge deck diffusion coefficient and surface chloride concentration from field data

English Title

Approximation of the bridge deck diffusion coefficient and surface chloride concentration from field data

Type

Paper in proceedings (conference paper)

Original Abstract

The aim of this work is to analyse the data from in-situ measurements performed on 5 reinforced concrete bridges built between 1937 and 1986, that are a part of the road network in the Czech Republic. The bridges were subjected to the field measurements in order to evaluate the ability of the concrete to protect the steel reinforcement from corrosion, namely the pH and the amount of water-soluble chlorides were evaluated on drilled core samples of concrete. Based on the actual chloride content, the diffusion coefficient and surface chloride concentration were determined. All the data were statistically summarized and the correlations among them were provided. The main focus of this study is to evaluate the non-proportional effect of the amount of chlorides per mass of concrete on the risk of corrosion initiation and to determine the unknown parameters of concrete – diffusion coefficient and surface chloride concentration, based on the numerical model of diffusion.

English abstract

The aim of this work is to analyse the data from in-situ measurements performed on 5 reinforced concrete bridges built between 1937 and 1986, that are a part of the road network in the Czech Republic. The bridges were subjected to the field measurements in order to evaluate the ability of the concrete to protect the steel reinforcement from corrosion, namely the pH and the amount of water-soluble chlorides were evaluated on drilled core samples of concrete. Based on the actual chloride content, the diffusion coefficient and surface chloride concentration were determined. All the data were statistically summarized and the correlations among them were provided. The main focus of this study is to evaluate the non-proportional effect of the amount of chlorides per mass of concrete on the risk of corrosion initiation and to determine the unknown parameters of concrete – diffusion coefficient and surface chloride concentration, based on the numerical model of diffusion.

Keywords

Chloride Concentration, Diffusion coefficient, Reinforced Concrete Bridge.

Key words in English

Chloride Concentration, Diffusion coefficient, Reinforced Concrete Bridge.

Authors

KONEČNÝ, P.; LEHNER, P.; VOŘECHOVSKÁ, D.; ŠOMODÍKOVÁ, M.; HORŇÁKOVÁ, M.; ROVNANÍKOVÁ, P.

RIV year

2021

Released

05.09.2019

Publisher

IOP Publishing, 2019

Location

Kragujevac, Serbia

Book

9th International Scientific Conference on Research and Development of Mechanical Elements and Systems, IRMES 2019

ISBN

1757-8981

Periodical

IOP Conference Series: Materials Science and Engineering

Volume

659

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

13

Pages count

13

URL

https://iopscience.iop.org/article/10.1088/1757-899X/659/1/012048

BibTex

@inproceedings{BUT168395,
  author="Petr {Konečný} and Petr {Lehner} and Dita {Vořechovská} and Martina {Sadílková Šomodíková} and Marie {Horňáková} and Pavla {Rovnaníková}",
  title="Approximation of the bridge deck diffusion coefficient and surface chloride concentration from field data",
  booktitle="9th International Scientific Conference on Research and Development of Mechanical Elements and Systems, IRMES 2019",
  year="2019",
  journal="IOP Conference Series: Materials Science and Engineering",
  volume="659",
  number="1",
  pages="1--13",
  publisher="IOP Publishing, 2019",
  address="Kragujevac, Serbia",
  doi="10.1088/1757-899x/659/1/012048",
  issn="1757-8981",
  url="https://iopscience.iop.org/article/10.1088/1757-899X/659/1/012048"
}