ERA

Download the full-sized PDF of Mechanical Characteristics of Soils Treated with a Liquid StabilizerDownload the full-sized PDF

Analytics

Share

Permanent link (DOI): https://doi.org/10.7939/R3445HP8D

Download

Export to: EndNote  |  Zotero  |  Mendeley

Communities

This file is in the following communities:

Graduate Studies and Research, Faculty of

Collections

This file is in the following collections:

Theses and Dissertations

Mechanical Characteristics of Soils Treated with a Liquid Stabilizer Open Access

Descriptions

Other title
Subject/Keyword
unconfined compression test
kaolinite
modified Proctor compaction test
scanning electron microscope
liquid soil stabilizer
standard Proctor compaction test
Conaid
triaxial compression test
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Zheng, Dong Ming
Supervisor and department
Kwan, Allan G. (Allan Kwan Consulting)
Chan, Dave (Department of Civil and Environmental Engineering)
Examining committee member and department
Chan, Dave (Department of Civil and Environmental Engineering)
Bayat, Alireza (Department of Civil and Environmental Engineering)
Kwan, Allan G. (Allan Kwan Consulting)
Department
Department of Civil and Environmental Engineering
Specialization
Geotechnical Engineering
Date accepted
2013-06-12T14:23:12Z
Graduation date
2013-11
Degree
Master of Science
Degree level
Master's
Abstract
Conaid is a liquid ionic soil stabilizers used as a compaction aid or a stabilizer for soil improvement. The material is a mixture of surfactant, stabilizer and high-charge ion sulfide compound. This product may have the potential benefits of removing absorbed water from soil particles with the aid of compaction which results in an increase in shear strength. Despite these potential advantages, there is a lack of geotechnical testing on the material as well as knowledge on its chemical composition and field performance. As a result, a laboratory testing program was conducted at the University of Alberta between September 2010 and June 2012. In this study, standard ASTM laboratory tests were carried out to examine the potential benefits of Conaid. Two natural soils and two clayey soils (kaolinite, montmorillonite) were selected for this study. A wide range of Conaid contents, varying from 0.01% to 0.5% by weight, were applied in treating soils. The effects on the compaction characteristics, shear strength and volume change in triaxial compression tests were evaluated. In addition, scanning electron microscope (SEM) was used to examine the microstructure of untreated and treated soil samples. The test results show some changes, negligible in some cases, on the mechanical properties of the soils treated with Conaid. Also, both Standard and Modified Proctor compaction tests show negligible or even negative effects on maximum dry density and optimum moisture content of test soils except for kaolinite. However, no significant, consistent increases in the shear strength are observed from consolidated drained triaxial compression tests and unconfined compression tests. There is no obvious alteration in the microstructure of the treated soils when they are examined using a SEM except some minor changes are noted in the soil structure.
Language
English
DOI
doi:10.7939/R3445HP8D
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
Citation for previous publication

File Details

Date Uploaded
Date Modified
2014-05-02T17:53:30.071+00:00
Audit Status
Audits have not yet been run on this file.
Characterization
File format: pdf (Portable Document Format)
Mime type: application/pdf
File size: 8292072
Last modified: 2015:10:12 20:55:06-06:00
Filename: Zheng_Dong Ming_Fall 2013.pdf
Original checksum: ec6076df77aad429db517a0075da4382
Well formed: true
Valid: true
Page count: 166
File language: zh-CN
Activity of users you follow
User Activity Date