NDLI: Modeling of drying shrinkage of concrete specimens at the meso-level

Content Provider	Springer Nature Link
Author	Idiart, Andrés E. López, Carlos M. Carol, Ignacio
Copyright Year	2010
Abstract	In this paper, an existing mesomechanical model for cementitious materials is extended to the domain of diffusion-driven phenomena. The model is based on the Finite Element Method, and uses zero-thickness interface elements equipped with a fracture-based constitutive formulation to represent cracks. The new developments presented in this paper consist of the application of the model to the hygro-mechanical coupled analysis of drying shrinkage in concrete specimens, explicitly taking into account the influence of (micro) cracks on the diffusion of moisture. In a first part of the paper, the model is presented in some detail, especially the new aspects regarding moisture diffusion including effects of cracks, and H-M coupling. The model predictions are then quantitatively compared with classical drying shrinkage experiments on concrete specimens. The consideration of different assumptions for the relation linking shrinkage strains and weight losses is discussed in some detail. Finally, the effect of size and volume fraction of the main heterogeneities of concrete on the drying process and drying-induced microcracking is also addressed.
Starting Page	415
Ending Page	435
Page Count	21
File Format	PDF
ISSN	13595997
Journal	Materials and Structures
Volume Number	44
Issue Number	2
e-ISSN	18716873
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-06-19
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Drying shrinkage Mesoscale Hygro-mechanical coupled simulation Concrete Building Materials Civil Engineering Operating Procedures, Materials Treatment Theoretical and Applied Mechanics Materials Science Structural Mechanics
Content Type	Text
Resource Type	Article
Subject	Building and Construction Mechanics of Materials Materials Science Civil and Structural Engineering

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