Experimental characterization of transversal-heterogeneous clay mixtures by the spectral induced polarization method

In this folder you will find multiple datasets (*.txt) from SIP measurements of transversal-heterogeneous clay mixtures using spectral induced polarization acquired between April and May 2022. Additionally, we include two python codes to read and process the data.

SIP_Plot_ReWrite.py is a python program aimed to process a .res file from a SIP Fuchs III.
It gives a .txt file with the frequency, the resistivity, the phase and the associated errors.
In order for the program to give the resistivity, you will need to enter the geometric factor of the studied sample.

The six text files in the folder (excluding README.txt) were created using SIP_Plot_ReWrite.py.

IL_1by1.txt and IL_1by1_V2.txt are from two different homogeneous mixtures of illite and water with a concentration of initially 0.01 mol/L of NaCl.
MtR_1by1.txt is from a homogeneous mixture of red montmorillonite and water with a concentration of initially 0.01 mol/L of NaCl.

IL_MtR_1by2.txt, IL_MtR_1by4.txt and IL_MtR_1by8.txt are from three transversal-heterogeneous mixtures of illite and red montmorillonite with water containing a concentration of initially 0.01 mol/L of NaCl.

For IL_MtR_1by2.txt, there was one portion of each clay types, occupying a half of the cylindrical container each.

For IL_MtR_1by4.txt, there was two portions of each clay types, occupying a quarter of the cylindrical container each.

These two samples were made using the same mixtures as for IL_1by1.txt and MtR_1by1.txt.

For IL_MtR_1by8.txt, there was four portions of each clay types, occupying an eighth of the cylindrical container each.
This sample was made using the same mixtures as for IL_1by1_V2.txt and MtR_1by1.txt.

TestDoubleColeColeFit.py is a python program which optimizes a double Cole-Cole model by multiplication on SIP data.
This program needs a file with the same structure as the .txt file made by SIP_Plot_ReWrite.py.