Two-years Open Post-Doctoral position in Nantes (France)
Job description :Solid-state NMR characterisation of treated clays
Project details :
The job takes place in the frame of the well-established three years old
collaboration between the LCPC (Laboratoire Central des Ponts et
Chaussées) and the IMN (Institut des Matériaux Jean Rouxel UMR CNRS
6502). The global goal is a better understanding of the change of
macroscopic mechanical properties of soils after treatment with
additives (lime or cement) commonly used in earthworks and civil
engineering. This implies to understand precisely the effect of the lime
or cement on the soil minerals. In this frame, we are specifically
embarked in the precise characterization and a mechanistic description
of the reactants and products involved in relation to the preparation
conditions and the geotechnical properties of the treated soils. We
apply various techniques combining a global approach as X-ray
diffraction, Thermal Analysis and spectroscopies as IR, Raman and
solid-state NMR. Moreover, Scanning and Transmission Electron
microscopies are also used for microstructural and morphological
characterization of the soils and minerals.
The candidate will focus his attention on the solid-state NMR approach
(1H,29Si,27Al , 23Na nuclei …). The samples to be characterised are
lime, cement or mixed -treated clays prepared in various conditions
(curing time, temperature, water content). Clay samples include
kaolinite, smectite as well as mica families. Moreover, the selected
candidate will interact with all others people involved in the project
to discuss and match data.
The candidate should be chemist with high solid-state NMR skills. He
should be able to conduct advanced experiments and analyses by himself.
Experiments will be performed on 300 MHz and 500 MHz spectrometers. If
needed, access to higher fields is possible.
Information / Application :
The duration of the contract is 2 years and the estimated net salary per
month 2000 €.
For further information or for written applications, including
curriculum vitae, summary of research interest and experience, please
contact :
Pr. Guy Ouvrard Institut des Matériaux Jean Rouxel (UMR CNRS 6502) 2,
rue de la Houssinière, BP 3229 44322 Nantes Cedex. France. Tel: +33 240
37 39 21 Fax: +33 240 37 39 95, E-mail: Guy.Ouvrard@cnrs-imn.fr
or
Dr. Michaël Paris, Institut des Matériaux Jean Rouxel (UMR CNRS 6502),
Tel: +33 240 37 39 01 Fax: +33 240 37 39 95, E-mail:
Michael.Paris@cnrs-imn.fr
or
Dr. Dimitri Deneele, Laboratoire Central des Ponts et Chaussées, Centre
de Nantes, Route de Bouaye, BP 4129 44341 Bouguenais Cedex. France. Tel:
+33 240 84 58 02, Fax: +33 240 84 59 93, E-mail: Dimitri.Deneele@lcpc.fr
