Detail publikačního výsledku

Extended evaluation of durability-related field inspection data from concrete bridges under service

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

Originální název

Extended evaluation of durability-related field inspection data from concrete bridges under service

Anglický název

Extended evaluation of durability-related field inspection data from concrete bridges under service

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

The paper continues and extends the assessments of the degradation level of reinforced concrete bridges under service in the Czech Republic. The evaluation is based on the in-situ measurements that were performed on the bridges belonging to main roads and motorways. The combined effect of aggressive agents (carbonation and chlorides) related to the risk of corrosion of steel reinforcement was evaluated on drilled concrete core samples. The ratio between the concentrations of Cl– and OH– was evaluated based on the ratio of water-soluble chloride content and pH. All the data were summarized in a statistical manner, and the relationships among resulting data were provided. The main goal of this study is to extend the number of investigated bridges from five bridges to fourteen; the published results from already evaluated highway bridges are complemented by four more main road bridges and five motorway bridges. The focus is given to the non-proportional influence of the chloride content per mass of concrete on the reinforcement corrosion and to localization of the “critical” parts of the bridges affected by corrosion related degradation.

Anglický abstrakt

The paper continues and extends the assessments of the degradation level of reinforced concrete bridges under service in the Czech Republic. The evaluation is based on the in-situ measurements that were performed on the bridges belonging to main roads and motorways. The combined effect of aggressive agents (carbonation and chlorides) related to the risk of corrosion of steel reinforcement was evaluated on drilled concrete core samples. The ratio between the concentrations of Cl– and OH– was evaluated based on the ratio of water-soluble chloride content and pH. All the data were summarized in a statistical manner, and the relationships among resulting data were provided. The main goal of this study is to extend the number of investigated bridges from five bridges to fourteen; the published results from already evaluated highway bridges are complemented by four more main road bridges and five motorway bridges. The focus is given to the non-proportional influence of the chloride content per mass of concrete on the reinforcement corrosion and to localization of the “critical” parts of the bridges affected by corrosion related degradation.

Klíčová slova

Reinforced concrete bridges; field inspection; carbonation process; chloride ingress; corrosion risk

Klíčová slova v angličtině

Reinforced concrete bridges; field inspection; carbonation process; chloride ingress; corrosion risk

Autoři

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

Rok RIV

2021

Vydáno

26.02.2020

Kniha

Procedia Structural Integrity - The 1st Mediterranean Conference on Fracture and Structural Integrity, MedFract1

ISSN

2452-3216

Periodikum

Procedia Structural Integrity

Svazek

2020

Číslo

26

Stát

Italská republika

Strany od

430

Strany do

438

Strany počet

9

URL

https://reader.elsevier.com/reader/sd/pii/S2452321620304637?token=242D4E33AFE881D199BF799773FC91954EA90829C7D75A6C991B9986CAD67C36E89D723E874BBE6A225380254CBD19B9

BibTex

@inproceedings{BUT169750,
  author="Petr {Konečný} and Dita {Vořechovská} and Martina {Sadílková Šomodíková} and Marie {Horňáková} and Pavla {Rovnaníková}",
  title="Extended evaluation of durability-related field inspection data from concrete bridges under service",
  booktitle="Procedia  Structural Integrity - The 1st Mediterranean Conference on Fracture and Structural Integrity, MedFract1",
  year="2020",
  journal="Procedia Structural Integrity",
  volume="2020",
  number="26",
  pages="430--438",
  issn="2452-3216",
  url="https://reader.elsevier.com/reader/sd/pii/S2452321620304637?token=242D4E33AFE881D199BF799773FC91954EA90829C7D75A6C991B9986CAD67C36E89D723E874BBE6A225380254CBD19B9"
}