1. Postdoctorate Student, Cemagref, Unité HBAN, BP 44, 92163 Antony Cedex, France.
2. Head of Geosynthetics Laboratory, Cemagref, Unité HBAN, BP 44, 92163 Antony Cedex, France (corresponding author).
3. Researcher, Cemagref, Unité HBAN, BP 44, 92163 Antony Cedex, France.
4. Head of Chemistry Laboratory, Cemagref, Unité HBAN, BP 44, 92163 Antony Cedex, France.