Soil stabilization application using geopolymerization method

Soft soils such as clay and silt have been associated to countless problems especially in engineering field. The main concern is to search for the best soil stabilizers to overcome the aroused problems. The purpose of soil stabilization is not only to achieve the required soil engineering propertie...

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Format:	Thesis
Language:	English
Subjects:	Soil stabilization Soil mechanics Geopolymerization
Online Access:	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77985/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77985/2/Full%20text.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77985/4/Sharifah%20Zaliha.pdf
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spelling	my-unimap-779852023-03-06T02:37:30Z Soil stabilization application using geopolymerization method Kamarudin, Hussin, Prof. Emeritus Dr. Soft soils such as clay and silt have been associated to countless problems especially in engineering field. The main concern is to search for the best soil stabilizers to overcome the aroused problems. The purpose of soil stabilization is not only to achieve the required soil engineering properties, in fact the cost and the effect towards the environment also should be considered. Continues studies are done by numerous researchers in order to find alternative methods for soil stabilization and geopolymerization is one of the method that can fulfill those requirements. This study has been conducted to investigate the geopolymerization method for soil stabilization application, by mixing the soils directly with alkaline solutions, producing soil based geopolymer. This method was conducted towards three types of soil; kaolin, Soil 1 and Soil 2. The soils were analyzed in terms of soil classification, Atterberg Limits, chemical composition, phase and morphology for geopolymer fabrication. Meanwhile, for the design of soil based geopolymer, the parameters involved were NaOH concentration, solid/liquid ratio and Na2SiO3/NaOH ratio. The optimum mixing ratio (solid/liquid ratio) of soil based geopolymers were obtained based on the highest strength values in Unconfined Compressive Strength (UCS) test and California Bearing Ratio (CBR) test. The highest strength value for kaolin based geopolymer was 436 kPa for UCS test and 46% for CBR test. Both values were at the same optimum solid/liquid ratio of 1.5. The optimum mixing ratio for Soil 1 based geopolymer was 2.0, with highest strength value of 500 kPa for UCS test and 55% for CBR test. Soil 2 based geopolymer also indicated the same optimum mixing ratio, 2.0, with highest strength value of 620 kPa and 62% for UCS test and CBR test, respectively. The soil based geopolymers were not effective for soil stabilization application according to ASTM D4609 specification and did not comply the minimum value specified in the Design Guideline for Alternative Pavement Structures (Low Volume Roads) of Malaysia Public Work Department (PWD). Kaolin based geopolymer indicated reduction of plasticity index up to 11.24%, meanwhile Soil 1 and Soil 2 based geopolymers indicated reduction up to 3.08% and 4.31%, respectively. The characterization of soil based geopolymers; phase analysis and morphology analysis were conducted at optimum mixing ratio. The increment of strength values and changes in the characterization of soil based geopolymers proved that geopolymerization method can be used for soil stabilization application. Universiti Malaysia Perlis (UniMAP) Thesis en http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77985 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77985/3/license.txt 8a4605be74aa9ea9d79846c1fba20a33 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77985/1/Page%201-24.pdf 0eff6c052a803551cc950579786ce9dc http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77985/2/Full%20text.pdf 9da0eb6952707057fe1b5b8edf4465cd http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77985/4/Sharifah%20Zaliha.pdf 6a1982c9c1b7d858668d38f3db47ce25 Universiti Malaysia Perlis (UniMAP) Soil stabilization Soil mechanics Geopolymerization School of Materials Engineering
institution	Universiti Malaysia Perlis
collection	UniMAP Institutional Repository
language	English
advisor	Kamarudin, Hussin, Prof. Emeritus Dr.
topic	Soil stabilization Soil mechanics Geopolymerization
spellingShingle	Soil stabilization Soil mechanics Geopolymerization Soil stabilization application using geopolymerization method
description	Soft soils such as clay and silt have been associated to countless problems especially in engineering field. The main concern is to search for the best soil stabilizers to overcome the aroused problems. The purpose of soil stabilization is not only to achieve the required soil engineering properties, in fact the cost and the effect towards the environment also should be considered. Continues studies are done by numerous researchers in order to find alternative methods for soil stabilization and geopolymerization is one of the method that can fulfill those requirements. This study has been conducted to investigate the geopolymerization method for soil stabilization application, by mixing the soils directly with alkaline solutions, producing soil based geopolymer. This method was conducted towards three types of soil; kaolin, Soil 1 and Soil 2. The soils were analyzed in terms of soil classification, Atterberg Limits, chemical composition, phase and morphology for geopolymer fabrication. Meanwhile, for the design of soil based geopolymer, the parameters involved were NaOH concentration, solid/liquid ratio and Na2SiO3/NaOH ratio. The optimum mixing ratio (solid/liquid ratio) of soil based geopolymers were obtained based on the highest strength values in Unconfined Compressive Strength (UCS) test and California Bearing Ratio (CBR) test. The highest strength value for kaolin based geopolymer was 436 kPa for UCS test and 46% for CBR test. Both values were at the same optimum solid/liquid ratio of 1.5. The optimum mixing ratio for Soil 1 based geopolymer was 2.0, with highest strength value of 500 kPa for UCS test and 55% for CBR test. Soil 2 based geopolymer also indicated the same optimum mixing ratio, 2.0, with highest strength value of 620 kPa and 62% for UCS test and CBR test, respectively. The soil based geopolymers were not effective for soil stabilization application according to ASTM D4609 specification and did not comply the minimum value specified in the Design Guideline for Alternative Pavement Structures (Low Volume Roads) of Malaysia Public Work Department (PWD). Kaolin based geopolymer indicated reduction of plasticity index up to 11.24%, meanwhile Soil 1 and Soil 2 based geopolymers indicated reduction up to 3.08% and 4.31%, respectively. The characterization of soil based geopolymers; phase analysis and morphology analysis were conducted at optimum mixing ratio. The increment of strength values and changes in the characterization of soil based geopolymers proved that geopolymerization method can be used for soil stabilization application.
format	Thesis
title	Soil stabilization application using geopolymerization method
title_short	Soil stabilization application using geopolymerization method
title_full	Soil stabilization application using geopolymerization method
title_fullStr	Soil stabilization application using geopolymerization method
title_full_unstemmed	Soil stabilization application using geopolymerization method
title_sort	soil stabilization application using geopolymerization method
granting_institution	Universiti Malaysia Perlis (UniMAP)
granting_department	School of Materials Engineering
url	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77985/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77985/2/Full%20text.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77985/4/Sharifah%20Zaliha.pdf
_version_	1776104256924811264

Soil stabilization application using geopolymerization method

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