Microstructure analysis of electrokinetically stabilized peat

In this research, four new chemical grout reagents were used, namely, sodium silicate, calcium chloride, calcium oxide, and aluminium hydroxide. The injection of the chemicals through the soil by using an electrokinetic method was successfully performed. Increase in the shear strength of stabilized...

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Main Authors: Moayedi, H., Nazir, R., Kazemian, Sina, Huat, B.K.
Format: Journal Article
Language:English
Published: ELSEVIER SCI LTD 2014
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/76226
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author Moayedi, H.
Nazir, R.
Kazemian, Sina
Huat, B.K.
author_facet Moayedi, H.
Nazir, R.
Kazemian, Sina
Huat, B.K.
author_sort Moayedi, H.
building Curtin Institutional Repository
collection Online Access
description In this research, four new chemical grout reagents were used, namely, sodium silicate, calcium chloride, calcium oxide, and aluminium hydroxide. The injection of the chemicals through the soil by using an electrokinetic method was successfully performed. Increase in the shear strength of stabilized soil was higher in the locations near the cathode and the calcium oxide showed the highest increment. The soil microstructure is comprehensively changed due to the change in the pH of the soil, and fluid flow during the electrokinetic application depends upon time and location of samples taken along the cell. The EDX output of natural peat showed the presence of oxygen (46.2%), carbon (29.3%), silica (5.1%), alumina (2.5%), and calcium (3.0%). However, after electrokinetic injection of the sodium silicate, calcium oxide, calcium chloride, and aluminium hydroxide, the concentration of these elements in the soil samples taken adjacent to the anode changed, with the carbon changing to 24.9%, 16.5%, 31.4%, 34%; the oxygen to 47.6%, 41.9%, 53%, 46%; the silica to 12.3%, 4.1%, 4.2%, 4.7%; the alumina to 2.5%, 1.2%, 2.2%, 6.2%; and the calcium to 1.8%, 18.6%, 6.1%, 2.6%, respectively. © 2013 Elsevier Ltd. All rights reserved.
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spelling curtin-20.500.11937-762262019-09-04T00:10:11Z Microstructure analysis of electrokinetically stabilized peat Moayedi, H. Nazir, R. Kazemian, Sina Huat, B.K. Science & Technology Technology Engineering, Multidisciplinary Instruments & Instrumentation Engineering Electrokinetic stabilization Microstructure analysis Soil improvement Tropical peat SOFT CLAY SOILS In this research, four new chemical grout reagents were used, namely, sodium silicate, calcium chloride, calcium oxide, and aluminium hydroxide. The injection of the chemicals through the soil by using an electrokinetic method was successfully performed. Increase in the shear strength of stabilized soil was higher in the locations near the cathode and the calcium oxide showed the highest increment. The soil microstructure is comprehensively changed due to the change in the pH of the soil, and fluid flow during the electrokinetic application depends upon time and location of samples taken along the cell. The EDX output of natural peat showed the presence of oxygen (46.2%), carbon (29.3%), silica (5.1%), alumina (2.5%), and calcium (3.0%). However, after electrokinetic injection of the sodium silicate, calcium oxide, calcium chloride, and aluminium hydroxide, the concentration of these elements in the soil samples taken adjacent to the anode changed, with the carbon changing to 24.9%, 16.5%, 31.4%, 34%; the oxygen to 47.6%, 41.9%, 53%, 46%; the silica to 12.3%, 4.1%, 4.2%, 4.7%; the alumina to 2.5%, 1.2%, 2.2%, 6.2%; and the calcium to 1.8%, 18.6%, 6.1%, 2.6%, respectively. © 2013 Elsevier Ltd. All rights reserved. 2014 Journal Article http://hdl.handle.net/20.500.11937/76226 10.1016/j.measurement.2013.11.006 English ELSEVIER SCI LTD restricted
spellingShingle Science & Technology
Technology
Engineering, Multidisciplinary
Instruments & Instrumentation
Engineering
Electrokinetic stabilization
Microstructure analysis
Soil improvement
Tropical peat
SOFT CLAY
SOILS
Moayedi, H.
Nazir, R.
Kazemian, Sina
Huat, B.K.
Microstructure analysis of electrokinetically stabilized peat
title Microstructure analysis of electrokinetically stabilized peat
title_full Microstructure analysis of electrokinetically stabilized peat
title_fullStr Microstructure analysis of electrokinetically stabilized peat
title_full_unstemmed Microstructure analysis of electrokinetically stabilized peat
title_short Microstructure analysis of electrokinetically stabilized peat
title_sort microstructure analysis of electrokinetically stabilized peat
topic Science & Technology
Technology
Engineering, Multidisciplinary
Instruments & Instrumentation
Engineering
Electrokinetic stabilization
Microstructure analysis
Soil improvement
Tropical peat
SOFT CLAY
SOILS
url http://hdl.handle.net/20.500.11937/76226