Effects of surfactant on geotechnical characteristics of silty soil

Zulfahmi Ali Rahman, Sahibin @ Sahibini Abd Rahim, Tukimat Lihan, Wan Mohd Razi Idris, M. Sakina

Research output: Contribution to journalArticle

Abstract

Surfactants are often used as a cleaning agent for restoration of oil-contaminated soil. However the effect of surfactant on the geotechnical properties of soil is not clearly understood. In this study, the effects of surfactant on silty soil were investigated for consistency index, compaction, permeability and shear strength. Sodium dodecyl sulfate (SDS) was used in this study to prepare the surfactant-treated soil. Our results showed that the soil with added surfactant exhibited a decrease in liquid and plastic limit values. Maximum dry densities increased and optimum moisture contents decreased as contents of added surfactant were increased. The presence of surfactant assists the soil to achieve maximum density at lower water content. The addition of surfactant decreased the permeability of soil from 6.29×10-4 to 1.15×10-4 ms-1. The shear strength of soil with added surfactant was examined using the undrained unconsolidated triaxial tests. The results showed that the undrained shear strength, Cu was significantly affected, decreased from 319 kPa to 50 kPa for soil with 20% of added surfactant. The results of this study showed that the presence of surfactant in soil can modify the mechanical behaviour of the soil.

Original languageEnglish
Pages (from-to)881-891
Number of pages11
JournalSains Malaysiana
Volume42
Issue number7
Publication statusPublished - Jul 2013

Fingerprint

silty soil
surfactant
soil
shear strength
effect
permeability
dry density
geotechnical property
triaxial test
compaction
moisture content
plastic
water content
sodium
sulfate

Keywords

  • Consistency index
  • Geotechnical properties
  • Residual soil
  • Shear strength
  • Surfactant

ASJC Scopus subject areas

  • General

Cite this

Effects of surfactant on geotechnical characteristics of silty soil. / Ali Rahman, Zulfahmi; Abd Rahim, Sahibin @ Sahibini; Lihan, Tukimat; Idris, Wan Mohd Razi; Sakina, M.

In: Sains Malaysiana, Vol. 42, No. 7, 07.2013, p. 881-891.

Research output: Contribution to journalArticle

@article{93212700406942dc99f7a1248abba69b,
title = "Effects of surfactant on geotechnical characteristics of silty soil",
abstract = "Surfactants are often used as a cleaning agent for restoration of oil-contaminated soil. However the effect of surfactant on the geotechnical properties of soil is not clearly understood. In this study, the effects of surfactant on silty soil were investigated for consistency index, compaction, permeability and shear strength. Sodium dodecyl sulfate (SDS) was used in this study to prepare the surfactant-treated soil. Our results showed that the soil with added surfactant exhibited a decrease in liquid and plastic limit values. Maximum dry densities increased and optimum moisture contents decreased as contents of added surfactant were increased. The presence of surfactant assists the soil to achieve maximum density at lower water content. The addition of surfactant decreased the permeability of soil from 6.29×10-4 to 1.15×10-4 ms-1. The shear strength of soil with added surfactant was examined using the undrained unconsolidated triaxial tests. The results showed that the undrained shear strength, Cu was significantly affected, decreased from 319 kPa to 50 kPa for soil with 20{\%} of added surfactant. The results of this study showed that the presence of surfactant in soil can modify the mechanical behaviour of the soil.",
keywords = "Consistency index, Geotechnical properties, Residual soil, Shear strength, Surfactant",
author = "{Ali Rahman}, Zulfahmi and {Abd Rahim}, {Sahibin @ Sahibini} and Tukimat Lihan and Idris, {Wan Mohd Razi} and M. Sakina",
year = "2013",
month = "7",
language = "English",
volume = "42",
pages = "881--891",
journal = "Sains Malaysiana",
issn = "0126-6039",
publisher = "Penerbit Universiti Kebangsaan Malaysia",
number = "7",

}

TY - JOUR

T1 - Effects of surfactant on geotechnical characteristics of silty soil

AU - Ali Rahman, Zulfahmi

AU - Abd Rahim, Sahibin @ Sahibini

AU - Lihan, Tukimat

AU - Idris, Wan Mohd Razi

AU - Sakina, M.

PY - 2013/7

Y1 - 2013/7

N2 - Surfactants are often used as a cleaning agent for restoration of oil-contaminated soil. However the effect of surfactant on the geotechnical properties of soil is not clearly understood. In this study, the effects of surfactant on silty soil were investigated for consistency index, compaction, permeability and shear strength. Sodium dodecyl sulfate (SDS) was used in this study to prepare the surfactant-treated soil. Our results showed that the soil with added surfactant exhibited a decrease in liquid and plastic limit values. Maximum dry densities increased and optimum moisture contents decreased as contents of added surfactant were increased. The presence of surfactant assists the soil to achieve maximum density at lower water content. The addition of surfactant decreased the permeability of soil from 6.29×10-4 to 1.15×10-4 ms-1. The shear strength of soil with added surfactant was examined using the undrained unconsolidated triaxial tests. The results showed that the undrained shear strength, Cu was significantly affected, decreased from 319 kPa to 50 kPa for soil with 20% of added surfactant. The results of this study showed that the presence of surfactant in soil can modify the mechanical behaviour of the soil.

AB - Surfactants are often used as a cleaning agent for restoration of oil-contaminated soil. However the effect of surfactant on the geotechnical properties of soil is not clearly understood. In this study, the effects of surfactant on silty soil were investigated for consistency index, compaction, permeability and shear strength. Sodium dodecyl sulfate (SDS) was used in this study to prepare the surfactant-treated soil. Our results showed that the soil with added surfactant exhibited a decrease in liquid and plastic limit values. Maximum dry densities increased and optimum moisture contents decreased as contents of added surfactant were increased. The presence of surfactant assists the soil to achieve maximum density at lower water content. The addition of surfactant decreased the permeability of soil from 6.29×10-4 to 1.15×10-4 ms-1. The shear strength of soil with added surfactant was examined using the undrained unconsolidated triaxial tests. The results showed that the undrained shear strength, Cu was significantly affected, decreased from 319 kPa to 50 kPa for soil with 20% of added surfactant. The results of this study showed that the presence of surfactant in soil can modify the mechanical behaviour of the soil.

KW - Consistency index

KW - Geotechnical properties

KW - Residual soil

KW - Shear strength

KW - Surfactant

UR - http://www.scopus.com/inward/record.url?scp=84879490634&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84879490634&partnerID=8YFLogxK

M3 - Article

VL - 42

SP - 881

EP - 891

JO - Sains Malaysiana

JF - Sains Malaysiana

SN - 0126-6039

IS - 7

ER -