Moisture Transport and Shrinkage in Concrete at early Age

Ling Yun Meng

doi:10.4028/www.scientific.net/AMM.174-177.232

Paper Titles

The General Properties and Applications of Ceramic Materials
p.215

Study of Plasma Cladding Ni-Based Compound Powder Layers on Q235 Steel
p.219

Delayed Fracture Resistance of 30MnSi High Strength Steel
p.223

Research on Load Transfer Behavior of Cement-Soil Mixing Piles by Load Test
p.228

Moisture Transport and Shrinkage in Concrete at early Age
p.232

Impact of the Limestone Powder on the Properties of Cement Paste and Mortar
p.236

Graphene Film Growth on Cu Foil via Direct Carbon Atoms Deposition by Using SSMBE
p.241

Study on High Performance Concrete Cracking and Measures for Crack Prevention
p.245

Experimental Study of the Impact of PAM on Cement Soil Strength
p.249

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 174-177Moisture Transport and Shrinkage in Concrete at...

Moisture Transport and Shrinkage in Concrete at early Age

Abstract:

Abstract: The moisture flow and drying of porous media, such as concrete, is tackled through the Navier-Stokes equation, where the Navier-Stokes equation is considered as the link between the theory of fluid flow, Acoustic Emission (AE) experiments on cracking (sound propagation based on the wave equation) and Lattice Gas Automata, (LGA) being a numerical simulation of the Navier-Stokes equation. Early age cracking in the ITZ is induced by using the moisture flow as the only “load” that causes cracking due to drying shrinkage volume changes in Environmental Scanning Electron Microscopy (ESEM) tests. An attempt is made to link and compare experimental results conducted by means of AE and ESEM to the results of 2-D LGA numerical simulation. Lattice Gas Automata (FHP model) is used as a basis to generate a new model for drying of porous medium. Special emphasis in a model creation is given to the Interface Transition Zone (ITZ), between aggregate and cement paste, because of the early crack initiation in this highly porous and strength-weak zone.

You might also be interested in these eBooks

Advanced Building Materials and Sustainable Architecture

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volumes 174-177)

Pages:

232-235

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.174-177.232

Citation:

Cite this paper

Online since:

May 2012

Authors:

Ling Yun Meng

Keywords:

Concrete, Moisture Transport, Shrinkage

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] T Shiotani,J，Bisschop and J G M van Mier: Temporal and Spatial Development of Drying Shrinkage in Cement-based Materials, Engineering Fracture Mechanics，2003(2)：91～111.

DOI: 10.1016/s0013-7944(02)00150-9

Google Scholar

[2] F.H. Wittmann, Creep and Shrinkage Mechanisms,Creep and Shrinkage in Concrete Structures, 129-161 (1982).

Google Scholar

[3] J. Bisschop, Mechanisms of Drying Shrinkage Micro-crack in Concrete, to appear in Cement and Concrete Research (2003).

Google Scholar

[4] T. Shiotani, J. Bisschop and J.G.M. van Mier, "Temporal and Spatial Development of Drying Shrinkage in Cement-based Materials", to appear in Engineering Fracture Mechanics (2003).

DOI: 10.1016/s0013-7944(02)00150-9

Google Scholar