Effects of moisture and clay minerals on the strength of soil along Kota Belud - Ranau Road in Tamparuli, Sabah

Landslide had long been regarded as one of the major geohazard in Sabah. Intense tropical climate of the region act as a catalyst that speed up the weathering process resulting in the decreasing resistance in rock mass and the formation of clay. Clay mineral in soil is a product of weathering proce...

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Main Author:	Mohamed Ali Yusof Mohd Husin
Format:	Thesis
Language:	English
Published:	2012
Subjects:	QE Geology
Online Access:	https://eprints.ums.edu.my/id/eprint/11575/1/mt0000000633.pdf
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spelling	my-ums-ep.115752017-11-07T06:58:24Z Effects of moisture and clay minerals on the strength of soil along Kota Belud - Ranau Road in Tamparuli, Sabah 2012 Mohamed Ali Yusof Mohd Husin QE Geology Landslide had long been regarded as one of the major geohazard in Sabah. Intense tropical climate of the region act as a catalyst that speed up the weathering process resulting in the decreasing resistance in rock mass and the formation of clay. Clay mineral in soil is a product of weathering process that contributes to the occurrence of landslides because of their properties. Due to constant heavy downpour that acts as the main triggering factor, it causes a decrease in strength of soil. The objective of the study is to determine the effects of moisture and clay minerals on the strength of soil. The research area is located along Kota Belud - Ranau Road in Tamparuli, Sabah. The study area is underlain prominently by Crocker Formation aged from Late Eocene to Early Miocene. Soil of the area is a weathering product from the exposed sedimentary rock formation known as Crocker, the alternating different lithology of this formation from one sampling station to another reflects the diversity in terms of engineering properties. Moisture data obtained from the Proctor Compaction Test was applied using the manipulation of Unconfined Compression Test by treating the samples with S% of increment and decrement of moisture from the optimum moisture content. The analysis yielded the strength of soil ranges from 49.S kPa to 114.5 kPa for optimum moisture, 12.5 kPa to 50 kPa for 5% increment and 77 kPa to 222 kPa for 5% decrement. The term Compressive Strength Difference is introduce in this research, it is defined as the percentage of compressive strength difference of the manipulated samples to its compressive strength at optimum moisture. Sample with clayey material scored 75%, the highest percentage of compressive strength difference loss when treated with 5% increase of moisture. Whilst, sample with sandy material scored 145%, the highest percentage of compressive strength difference gain when treated with 5% decrease of moisture. Clay mineral analysis was executed by X-Ray Diffraction Analysis (XRD) and yielded clay minerals such as halloysite, montmorillonite, illite-montmorillonite and illite, which are Significant in all the samples. Scanning Electron Microscopy (SEM) observation shows Illite, illite-montmorillonite and montmorillonite is often observed and characterized by their unique features. It is concluded that engineering properties of soil in the study area provide variety of results and this mainly controlled by the type of soil. This research shows that effect of moisture and clay mineral to the properties of the sample has a direct impact on the compressive strength of soil 2012 Thesis https://eprints.ums.edu.my/id/eprint/11575/ https://eprints.ums.edu.my/id/eprint/11575/1/mt0000000633.pdf text en public masters Universiti Malaysia Sabah School of Science and Technology
institution	Universiti Malaysia Sabah
collection	UMS Institutional Repository
language	English
topic	QE Geology
spellingShingle	QE Geology Mohamed Ali Yusof Mohd Husin Effects of moisture and clay minerals on the strength of soil along Kota Belud - Ranau Road in Tamparuli, Sabah
description	Landslide had long been regarded as one of the major geohazard in Sabah. Intense tropical climate of the region act as a catalyst that speed up the weathering process resulting in the decreasing resistance in rock mass and the formation of clay. Clay mineral in soil is a product of weathering process that contributes to the occurrence of landslides because of their properties. Due to constant heavy downpour that acts as the main triggering factor, it causes a decrease in strength of soil. The objective of the study is to determine the effects of moisture and clay minerals on the strength of soil. The research area is located along Kota Belud - Ranau Road in Tamparuli, Sabah. The study area is underlain prominently by Crocker Formation aged from Late Eocene to Early Miocene. Soil of the area is a weathering product from the exposed sedimentary rock formation known as Crocker, the alternating different lithology of this formation from one sampling station to another reflects the diversity in terms of engineering properties. Moisture data obtained from the Proctor Compaction Test was applied using the manipulation of Unconfined Compression Test by treating the samples with S% of increment and decrement of moisture from the optimum moisture content. The analysis yielded the strength of soil ranges from 49.S kPa to 114.5 kPa for optimum moisture, 12.5 kPa to 50 kPa for 5% increment and 77 kPa to 222 kPa for 5% decrement. The term Compressive Strength Difference is introduce in this research, it is defined as the percentage of compressive strength difference of the manipulated samples to its compressive strength at optimum moisture. Sample with clayey material scored 75%, the highest percentage of compressive strength difference loss when treated with 5% increase of moisture. Whilst, sample with sandy material scored 145%, the highest percentage of compressive strength difference gain when treated with 5% decrease of moisture. Clay mineral analysis was executed by X-Ray Diffraction Analysis (XRD) and yielded clay minerals such as halloysite, montmorillonite, illite-montmorillonite and illite, which are Significant in all the samples. Scanning Electron Microscopy (SEM) observation shows Illite, illite-montmorillonite and montmorillonite is often observed and characterized by their unique features. It is concluded that engineering properties of soil in the study area provide variety of results and this mainly controlled by the type of soil. This research shows that effect of moisture and clay mineral to the properties of the sample has a direct impact on the compressive strength of soil
format	Thesis
qualification_level	Master's degree
author	Mohamed Ali Yusof Mohd Husin
author_facet	Mohamed Ali Yusof Mohd Husin
author_sort	Mohamed Ali Yusof Mohd Husin
title	Effects of moisture and clay minerals on the strength of soil along Kota Belud - Ranau Road in Tamparuli, Sabah
title_short	Effects of moisture and clay minerals on the strength of soil along Kota Belud - Ranau Road in Tamparuli, Sabah
title_full	Effects of moisture and clay minerals on the strength of soil along Kota Belud - Ranau Road in Tamparuli, Sabah
title_fullStr	Effects of moisture and clay minerals on the strength of soil along Kota Belud - Ranau Road in Tamparuli, Sabah
title_full_unstemmed	Effects of moisture and clay minerals on the strength of soil along Kota Belud - Ranau Road in Tamparuli, Sabah
title_sort	effects of moisture and clay minerals on the strength of soil along kota belud - ranau road in tamparuli, sabah
granting_institution	Universiti Malaysia Sabah
granting_department	School of Science and Technology
publishDate	2012
url	https://eprints.ums.edu.my/id/eprint/11575/1/mt0000000633.pdf
_version_	1747836422348341248

Effects of moisture and clay minerals on the strength of soil along Kota Belud - Ranau Road in Tamparuli, Sabah

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