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254

Multiscale modeling of fluid transport in heterogeneous materials using discrete Boltzmann methods



Title: Multiscale modeling of fluid transport in heterogeneous materials using discrete Boltzmann methods
Author(s): N. S. Martys, J. G. Hagedorn
Paper category : journal
Serial title: Materials and Structures
Abreviated Serial title: Mater. Struct.
ISSN: 1359-5997
Publisher: RILEM Publications SARL
Volume: 35
Issue: 254
Issue date: 2002-12-01
Publication year: 2002
Pages: 650 - 658
Total Pages: 9
Nb references: 21
Language: English


Abstract: The behavior of two series of concrete slabs exposed to sulfate-bearing soils was investigated by a numerical model called STADIUM.
In addition to the diffusion of ions and moisture,the model also accounts for the effects of dissolution/precipitation reactions on the transport mechanisms.
The simulations yielded by the model were compared to the actual degradation of the slabs after 8 years of exposure.
The microstructural alterations of concrete resulting from the penetration of magnesium,chloride and sulfate ions were studied by backscatter mode scanning electron microscope observations and energy-dispersive X-ray analyses.
The comparison of both series of data indicates that the model can reliably predict the various features of the microstructural alterations of concrete.


Online publication: 2002-10-27
Classification: Scientific Reports
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/13973


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