Mesoscale Modeling of Nonlinear Influence of Ambient Relative Humidity on Drying Shrinkage of Concrete
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F16%3A00239149" target="_blank" >RIV/68407700:21110/16:00239149 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.4028/www.scientific.net/AMM.825.129" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/AMM.825.129</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4028/www.scientific.net/AMM.825.129" target="_blank" >10.4028/www.scientific.net/AMM.825.129</a>
Alternative languages
Result language
angličtina
Original language name
Mesoscale Modeling of Nonlinear Influence of Ambient Relative Humidity on Drying Shrinkage of Concrete
Original language description
Creep and shrinkage are complicated time-dependent processes taking place in cementitious materials. In typical concretes, the most significant part of shrinkage is represented by drying shrinkage; it is caused by a decrease in relative humidity of pores which leads to an increase in capillary tension of pore water and in the solid surface tension at pore walls. Experimental data indicate that the ultimate value of drying shrinkage measured on concrete and mortar specimens is a nonlinear function of the ambient relative humidity. The nonlinear behavior is partially caused by microcracking, and partially by creep of the cement matrix. On the other hand, drying shrinkage of hardened cement paste, measured on very thin specimens at gradually decreasing relative humidity, is found to be a linear function of relative humidity. The aim of this paper is to assess the nature of the macroscopic shrinkage computed employing finite element simulations at the meso-scale level in which the drying cement paste is described by a viscoelastic model with tensile cracking and with a constant shrinkage coefficient.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JN - Civil engineering
OECD FORD branch
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Result continuities
Project
<a href="/en/project/EE2.3.30.0034" target="_blank" >EE2.3.30.0034: Support of inter-sectoral mobility and quality enhancement of research teams at Czech Technical University in Prague</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Modern Methods of Experimental and Computational Investigations in Area of Construction
ISBN
978-3-03835-603-5
ISSN
1660-9336
e-ISSN
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Number of pages
6
Pages from-to
129-134
Publisher name
Trans Tech Publications Inc.
Place of publication
Pfaffikon
Event location
Praha
Event date
Sep 17, 2015
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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