onr:"swepub:oai:DiVA.org:kth-237303"
Search: onr:"swepub:oai:DiVA.org:kth-237303" > Freezing of partial...
- 1 of 1
- Previous record
- Next record
- To hitlist
Freezing of partially saturated air-entrained concrete: A multiphase description of the hygro-thermo-mechanical behaviour
-
- Eriksson, Daniel, 1987- (author)
- KTH,Betongbyggnad
-
- Gasch, Tobias (author)
- KTH,Betongbyggnad
-
- Malm, Richard, 1980- (author)
- KTH,Betongbyggnad
- show more...
- show less...
- (creator_code:org_t)
- Elsevier BV, 2018
- 2018
- English.
- In: International Journal of Solids and Structures. - : Elsevier BV. - 0020-7683 .- 1879-2146. ; 152-153, s. 294-304
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- Even though air-entrained concrete is usually used for concrete structures located in cold climates that are exposed to wet environments, frost damage is frequently detected during inspections. However, it is often hard to assess the extent and severity of the damage and, thus, there is a need for better tools and aids that can complement already established assessment methods. Several studies have successfully shown that models based on poromechanics and a multiphase approach can be used to describe the freezing behaviour of air-entrained concrete. However, these models are often limited to the scale of the air pore system and, hence, hard to use in applications involving real structures. This study proposes a hygro-thermo-mechanical multiphase model which describes the freezing behaviour of partially saturated air-entrained concrete on the structural scale. The model is implemented in a general FE-code and two numerical examples are presented to validate and show the capabilities of the model. The first concerns a series of experimental tests of air-entrained cement pastes, whereas the second aims to show the capability of the model to account for an initial non-uniform distribution of moisture. While the model predictions underestimate the magnitude of the measured strains, the results still show that the model can capture the general freezing behaviour observed in the experimental tests on the structural scale. Furthermore, the results demonstrate that the model is capable of describing freezing induced deformations caused by non-uniform moisture distributions.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering (hsv//eng)
Keyword
- Freezing
- Partially saturated
- Air-entrained concrete
- Structural scale
- Finite element modelling
- Byggvetenskap
- Civil and Architectural Engineering
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
- International Journal of Solids and Structures (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Eriksson, Daniel ...
- Gasch, Tobias
- Malm, Richard, 1 ...
- Ansell, Anders
- About the subject
-
- ENGINEERING AND TECHNOLOGY
- ENGINEERING AND ...
- and Civil Engineerin ...
- Articles in the publication
- International Jo ...
- By the university
- Royal Institute of Technology
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
