Deterioration of Concrete in Hydraulic Structures due to Frost Action

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

Climatic conditions during the winter in countries situated in the north can be considered severe. This is especially true for hydraulic structures, such as hydro power structures, dams, harbours, canals and some bridge foundations. Freezing of concrete in contact with unfrozen fresh water may have a considerable impact on the deterioration process of concrete. This paper presents results obtained in experimental investigations based on observations of superficial and internal damage to concrete in hydraulic structures in Sweden. It was shown that superficial damage at the waterline is caused by interactions between leaching, frost action and abrasion. Further, the results indicate that internal damage to some thin concrete dams has been due to formation of macroscopic ice lenses causing spalling of concrete. Knowledge about degradation mechanisms and how they interact is crucial in order to be able to perform durable repairs.

Details

Authors
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Materials Engineering

Keywords

  • Frost Action, Scaling, Ice Segregation, Moisture Conditions, Hydraulic Structures
Original languageEnglish
Title of host publicationNordic Concrete Research - Proceedings of XXII Nordic Concrete Symposium
PublisherNorsk Betongforening
Pages483-486
Number of pages4
Volume2014/2
ISBN (Print)978-82-8208-043-9
Publication statusPublished - 2014
Publication categoryResearch
Peer-reviewedYes
EventXXII Nordic Concrete Research Symposia, 2014 - Reykjavík, Iceland
Duration: 2014 Aug 132014 Aug 15

Publication series

Name
Number50
Volume2014/2
ISSN (Print)0800-6377

Conference

ConferenceXXII Nordic Concrete Research Symposia, 2014
CountryIceland
CityReykjavík
Period2014/08/132014/08/15