Detail publikačního výsledku

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.

Originální název

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

Anglický název

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

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

Chloride Concentration, Diffusion coefficient, Reinforced Concrete Bridge.

Klíčová slova v angličtině

Chloride Concentration, Diffusion coefficient, Reinforced Concrete Bridge.

Autoři

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

Rok RIV

2021

Vydáno

05.09.2019

Nakladatel

IOP Publishing, 2019

Místo

Kragujevac, Serbia

Kniha

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

ISSN

1757-8981

Periodikum

IOP Conference Series: Materials Science and Engineering

Svazek

659

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

13

Strany počet

13

URL

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

Plný text v Digitální knihovně

http://hdl.handle.net/

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"
}