Research Article

Effect of Water Saturation on the Diffusion/Adsorption of 22Na and Cesium onto the Callovo-Oxfordian Claystones

Table 1

Summary of the samples, the tracers, and the type of experiments performed in this study. √ means performed.

Sample state Thickness (mm) [PEG] (g/g of solution) Applied suction (MPa) Type of experiments
Through-diffusionOut-diffusionIn-diffusion until equilibriumPetrophysical measurement

Intact11.130022Na+
Intact11.160.421.922Na+
Intact10.960.766.322Na+
Intact11.150.95922Na+
Intact6.010.95922Na+
Compacted10.170022Na+
Compacted9.750.421.922Na+
Compacted9.880.766.322Na+
Compacted9.930.95922Na+
Intact8.6000 = 8.7 × 10−4 M
Intact2.080.959 + = 7.6 × 10−4 M
Compacted6.0300 + = 8.4 × 10−4 M
Compacted3.930.421.9 + = 7.6 × 10−4 M
Compacted4.020.766.3 + = 8.4 × 10−4 M
Compacted3.880.959 + = 7.8 × 10−4 M
Intact80.959
Compacted10.0900
Compacted10.110.421.9
Compacted9.860.766.3
Compacted10.090.959