The influence of cation exchange capacity towards electrical resistivity value for fine grained soil

Azmi, Mohammad Izzat Shaffiq (2021) The influence of cation exchange capacity towards electrical resistivity value for fine grained soil. Masters thesis, Universiti Tun Hussein Onn Malaysia.

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Abstract

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

Item Type:	Thesis (Masters)
Subjects:	T Technology > T Technology (General)
Divisions:	Faculty of Civil Engineering and Built Environment > Department of Civil Engineering : Building and Construction Engineering
Depositing User:	Mrs. Sabarina Che Mat
Date Deposited:	15 May 2024 07:19
Last Modified:	15 May 2024 07:19
URI:	http://eprints.uthm.edu.my/id/eprint/10967

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