Skip to Main content Skip to Navigation
Journal articles

The validity of the formation factor concept from through-out diffusion tests on Portland cement mortars

Abstract : The diffusion coefficients of ions and radionuclides in cementitious materials are the basic parameters to evaluate the state of the degradation of structures. In this article, three different tracers (two ions, and a radionuclide) were tested on the same formulations of mortars (sand volume fractions from 0 to 60 per cent) in terms of the through-out diffusion, to determine the effective diffusion coefficients of each tracer and each formulation. The aim of this study is to prove the validity of the formation factor equation relating the effective diffusivity of a tracer in cementitious material to its diffusion coefficient in pure water. This result is extremely interesting because once the geometric formation factor of a material is known, it is possible to determine the values of the effective diffusion coefficients of any other diffusing species in this material.
Complete list of metadatas

https://hal-cea.archives-ouvertes.fr/cea-02386098
Contributor : Amplexor Amplexor <>
Submitted on : Friday, November 29, 2019 - 10:49:10 AM
Last modification on : Tuesday, April 28, 2020 - 11:28:14 AM

Identifiers

Collections

CEA | DEN

Citation

Zineb Bajja, W. Dridi, Bouthaina Larbi, Patrick Le Bescop. The validity of the formation factor concept from through-out diffusion tests on Portland cement mortars. Cement and Concrete Composites, Elsevier, 2015, 63, pp.76-83. ⟨10.1016/j.cemconcomp.2015.07.014⟩. ⟨cea-02386098⟩

Share

Metrics

Record views

44