Ciri-ciri kejuruteraan, mineralogi dan mikrostruktur tanah liat lembut di Semenanjung Malaysia

Soft clay deposits are available along the west coast and some parts of the east coast of Peninsular Malaysia. Due to the increase in population and good economic growth, a lot of projects are implemented in these areas. Constructions on soft clays are often affected by stability and settlement prob...

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Main Author:	Ahmad Tajudin, Saiful Azhar
Format:	Thesis
Published:	2004
Subjects:	GB Physical geography
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id	my-utm-ep.6463
record_format	uketd_dc
spelling	my-utm-ep.64632020-07-26T08:40:34Z Ciri-ciri kejuruteraan, mineralogi dan mikrostruktur tanah liat lembut di Semenanjung Malaysia 2004-01 Ahmad Tajudin, Saiful Azhar GB Physical geography TA Engineering (General). Civil engineering (General) Soft clay deposits are available along the west coast and some parts of the east coast of Peninsular Malaysia. Due to the increase in population and good economic growth, a lot of projects are implemented in these areas. Constructions on soft clays are often affected by stability and settlement problems. Therefore, in order to counter these problems, one has to know the engineering properties, mineralogy and the microstructure of the soft clay. Samples of soft clay for this study are taken at certain depth from construction sites being carried out along Peninsular Malaysia. This study is carried out to identify the engineering properties of soft clay such as soil index, consolidation characteristics, shear strength parameters, mineralogy and microstructure of the soil. Correlations and brief catalogues are produced to assist in the preliminary design process. X-rays diffraction (XRD) and X-rays fluorescence (XRF) are used to determine the mineralogy of soft clay. Scanning electron microscopy (SEM) is used to study the microstructure of clay. From this study, it can be concluded that the soft clays in the research area have high moisture content which reaches 139%. Whereas, the specific gravity (G,) is between 2.42 - 2.65, compressibility index (C,) is between 0.09 - 1.36, coefficient of consolidation (c,) is between 1.24 - 8.72 m21years and coefficient of volume compressibility (m,) is between 0.056 - 2.084 mZ/MN. The effective cohesion (c') values are in the range of 0 - 2 kN/m2, while the effective friction angle (I$') are in the range of 17" - 3 lo. Tests using XRD concludes that the primary mineral in soft clay is quartz and the secondary mineral is kaolinite. On the other hand, XRF tests shows that the quantity of silica oxide and aluminium oxide are quite high in soft clay, which are due to the presence of kaolinite mineral. Test using SEM verified the presence of kaolinite mineral and pyrite in soft clay. From the correlation derived, it shows that the compressibility index increases with natural moisture content, Atterberg limit, initial void ratio and organic content. On the other hand, the effective friction angle is found to be influenced by the natural moisture content and plasticity index. The correlation obtained shows that the effective friction angle decreases with increasing natural moisture content and plasticity index. 2004-01 Thesis http://eprints.utm.my/id/eprint/6463/ http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:62197 masters Universiti Teknologi Malaysia, Faculty of Civil Engineering Faculty of Civil Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
topic	GB Physical geography GB Physical geography
spellingShingle	GB Physical geography GB Physical geography Ahmad Tajudin, Saiful Azhar Ciri-ciri kejuruteraan, mineralogi dan mikrostruktur tanah liat lembut di Semenanjung Malaysia
description	Soft clay deposits are available along the west coast and some parts of the east coast of Peninsular Malaysia. Due to the increase in population and good economic growth, a lot of projects are implemented in these areas. Constructions on soft clays are often affected by stability and settlement problems. Therefore, in order to counter these problems, one has to know the engineering properties, mineralogy and the microstructure of the soft clay. Samples of soft clay for this study are taken at certain depth from construction sites being carried out along Peninsular Malaysia. This study is carried out to identify the engineering properties of soft clay such as soil index, consolidation characteristics, shear strength parameters, mineralogy and microstructure of the soil. Correlations and brief catalogues are produced to assist in the preliminary design process. X-rays diffraction (XRD) and X-rays fluorescence (XRF) are used to determine the mineralogy of soft clay. Scanning electron microscopy (SEM) is used to study the microstructure of clay. From this study, it can be concluded that the soft clays in the research area have high moisture content which reaches 139%. Whereas, the specific gravity (G,) is between 2.42 - 2.65, compressibility index (C,) is between 0.09 - 1.36, coefficient of consolidation (c,) is between 1.24 - 8.72 m21years and coefficient of volume compressibility (m,) is between 0.056 - 2.084 mZ/MN. The effective cohesion (c') values are in the range of 0 - 2 kN/m2, while the effective friction angle (I$') are in the range of 17" - 3 lo. Tests using XRD concludes that the primary mineral in soft clay is quartz and the secondary mineral is kaolinite. On the other hand, XRF tests shows that the quantity of silica oxide and aluminium oxide are quite high in soft clay, which are due to the presence of kaolinite mineral. Test using SEM verified the presence of kaolinite mineral and pyrite in soft clay. From the correlation derived, it shows that the compressibility index increases with natural moisture content, Atterberg limit, initial void ratio and organic content. On the other hand, the effective friction angle is found to be influenced by the natural moisture content and plasticity index. The correlation obtained shows that the effective friction angle decreases with increasing natural moisture content and plasticity index.
format	Thesis
qualification_level	Master's degree
author	Ahmad Tajudin, Saiful Azhar
author_facet	Ahmad Tajudin, Saiful Azhar
author_sort	Ahmad Tajudin, Saiful Azhar
title	Ciri-ciri kejuruteraan, mineralogi dan mikrostruktur tanah liat lembut di Semenanjung Malaysia
title_short	Ciri-ciri kejuruteraan, mineralogi dan mikrostruktur tanah liat lembut di Semenanjung Malaysia
title_full	Ciri-ciri kejuruteraan, mineralogi dan mikrostruktur tanah liat lembut di Semenanjung Malaysia
title_fullStr	Ciri-ciri kejuruteraan, mineralogi dan mikrostruktur tanah liat lembut di Semenanjung Malaysia
title_full_unstemmed	Ciri-ciri kejuruteraan, mineralogi dan mikrostruktur tanah liat lembut di Semenanjung Malaysia
title_sort	ciri-ciri kejuruteraan, mineralogi dan mikrostruktur tanah liat lembut di semenanjung malaysia
granting_institution	Universiti Teknologi Malaysia, Faculty of Civil Engineering
granting_department	Faculty of Civil Engineering
publishDate	2004
_version_	1747814665392488448

Ciri-ciri kejuruteraan, mineralogi dan mikrostruktur tanah liat lembut di Semenanjung Malaysia

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