The influence of cation exchange capacity towards electrical resistivity value for fine grained soil
An electrical resistivity method (ERM) is a non-destructive test in subsurface exploration that would able to safe cost of project. However, an improvement is needed as there are some difficulties in the interpretation of earth material using resistivity chart due to overlapping values and not ma...
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| Format: | Thesis |
| Language: | English English English |
| Published: |
2021
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/10967/1/24p%20MOHAMMAD%20IZZAT%20SHAFFIQ%20AZMI.pdf http://eprints.uthm.edu.my/10967/2/MOHAMMAD%20IZZAT%20SHAFFIQ%20AZMI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/10967/3/MOHAMMAD%20IZZAT%20SHAFFIQ%20AZMI%20WATERMARK.pdf |
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| Summary: | An electrical resistivity method (ERM) is a non-destructive test in subsurface
exploration that would able to safe cost of project. However, an improvement is needed
as there are some difficulties in the interpretation of earth material using resistivity
chart due to overlapping values and not many researches were conducted to revise the
earth minerals resistivity value based on the variable in Archies’ Law. The objectives
were to characterize physical properties and mineral compounds, identify the
relationship of ERV with water content and CEC, and identify the effect of finegrained
artificial minerals’ mixed proportion towards ERV and CEC value. The finegrain
artificial mineral used were kaolinite, montmorillonite, illite, quartz, mica, and
feldspar, passing 0.063 mm sieve, tested its basic soil index properties via British
Standard 1377 and tested mineral compound with X-Ray Diffraction (XRD). The
samples were prepared in four (4) type of mixtures: individual minerals, major mineral,
minor mineral, and major and minor mineral. The resistivity value of montmorillonite
at degree of water saturation 10% and 100% were 347 Ωm and 5 Ωm respectively. The
mineral's effects towards the ERV were clearly observed such as between kaolinite
and montmorillonite at 10% water saturation were 5990 Ωm and 347 Ωm respectively.
The study showed that minerals contained their own CEC. Hence, the CEC influenced
the ERV of the fine-grain artificial mineral mixture. Hence the CEC value of kaolinite
and montmorillonite were at 1 meq/100g and 70 meq/100g respectively. The CEC of
a mineral mixture increased when a high percentage of minerals with high CEC were
added and vice versa, for example the mixture of montmorillonite and illite were 29.82
meq/100g and the mixture of kaoline and quartz were 4.34 meq/100g. The correlation
that was made showed that minerals contained their own CEC. Hence, the CEC
influenced the ERV of the fine-grain artificial mineral mixture |
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