Soil-water characteristic curves and hydraulic conductivity of nanomaterial-soil-bentonite mixtures

Omer Muhie Eldeen Taha, Mohd. Raihan Taha

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

This study evaluates the influence of nanomaterials (nano-copper and nano-alumina) on the suction and hydraulic conductivity of compacted soil-bentonite mixture with different plasticity indexes. The soil suction and hydraulic conductivity of the compacted soil-bentonite mixtures were measured before and after the addition of nanomaterials. Soil-water characteristic curves were then developed for compacted soil samples (with and without nanomaterial) using a pressure membrane apparatus. It was found that saturated water content was lower in the soil samples mixed with nanomaterials. The soil hydraulic conductivity also decreased with increasing nanomaterial content, except for S3 soil sample with nano-copper content. The decrease of hydraulic conductivity was possibly caused by the reduction of the effective porosity due to pore clogging. The results from testing samples after one to four drying times show that the largest rise in soil hydraulic conductivity occurred at first or second drying. Adding nanomaterials can reduce the soil hydraulic conductivity by as much as seven times for soil samples with high clay (bentonite) content.

Original languageEnglish
Article number12
Pages (from-to)1-14
Number of pages14
JournalArabian Journal of Geosciences
Volume9
Issue number1
DOIs
Publication statusPublished - 1 Jan 2016

Fingerprint

bentonite
hydraulic conductivity
soil water
soil
suction
copper
aluminum oxide
plasticity
water content
porosity
membrane
clay

Keywords

  • Cyclic hydraulic conductivity
  • Hydraulic conductivity
  • Nanomaterials
  • Soil-bentonite mixture
  • Soil-water characteristic curves

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

Cite this

Soil-water characteristic curves and hydraulic conductivity of nanomaterial-soil-bentonite mixtures. / Taha, Omer Muhie Eldeen; Taha, Mohd. Raihan.

In: Arabian Journal of Geosciences, Vol. 9, No. 1, 12, 01.01.2016, p. 1-14.

Research output: Contribution to journalArticle

@article{f513baea44fe490d9dfdcd8353324f86,
title = "Soil-water characteristic curves and hydraulic conductivity of nanomaterial-soil-bentonite mixtures",
abstract = "This study evaluates the influence of nanomaterials (nano-copper and nano-alumina) on the suction and hydraulic conductivity of compacted soil-bentonite mixture with different plasticity indexes. The soil suction and hydraulic conductivity of the compacted soil-bentonite mixtures were measured before and after the addition of nanomaterials. Soil-water characteristic curves were then developed for compacted soil samples (with and without nanomaterial) using a pressure membrane apparatus. It was found that saturated water content was lower in the soil samples mixed with nanomaterials. The soil hydraulic conductivity also decreased with increasing nanomaterial content, except for S3 soil sample with nano-copper content. The decrease of hydraulic conductivity was possibly caused by the reduction of the effective porosity due to pore clogging. The results from testing samples after one to four drying times show that the largest rise in soil hydraulic conductivity occurred at first or second drying. Adding nanomaterials can reduce the soil hydraulic conductivity by as much as seven times for soil samples with high clay (bentonite) content.",
keywords = "Cyclic hydraulic conductivity, Hydraulic conductivity, Nanomaterials, Soil-bentonite mixture, Soil-water characteristic curves",
author = "Taha, {Omer Muhie Eldeen} and Taha, {Mohd. Raihan}",
year = "2016",
month = "1",
day = "1",
doi = "10.1007/s12517-015-2038-6",
language = "English",
volume = "9",
pages = "1--14",
journal = "Arabian Journal of Geosciences",
issn = "1866-7511",
publisher = "Springer Verlag",
number = "1",

}

TY - JOUR

T1 - Soil-water characteristic curves and hydraulic conductivity of nanomaterial-soil-bentonite mixtures

AU - Taha, Omer Muhie Eldeen

AU - Taha, Mohd. Raihan

PY - 2016/1/1

Y1 - 2016/1/1

N2 - This study evaluates the influence of nanomaterials (nano-copper and nano-alumina) on the suction and hydraulic conductivity of compacted soil-bentonite mixture with different plasticity indexes. The soil suction and hydraulic conductivity of the compacted soil-bentonite mixtures were measured before and after the addition of nanomaterials. Soil-water characteristic curves were then developed for compacted soil samples (with and without nanomaterial) using a pressure membrane apparatus. It was found that saturated water content was lower in the soil samples mixed with nanomaterials. The soil hydraulic conductivity also decreased with increasing nanomaterial content, except for S3 soil sample with nano-copper content. The decrease of hydraulic conductivity was possibly caused by the reduction of the effective porosity due to pore clogging. The results from testing samples after one to four drying times show that the largest rise in soil hydraulic conductivity occurred at first or second drying. Adding nanomaterials can reduce the soil hydraulic conductivity by as much as seven times for soil samples with high clay (bentonite) content.

AB - This study evaluates the influence of nanomaterials (nano-copper and nano-alumina) on the suction and hydraulic conductivity of compacted soil-bentonite mixture with different plasticity indexes. The soil suction and hydraulic conductivity of the compacted soil-bentonite mixtures were measured before and after the addition of nanomaterials. Soil-water characteristic curves were then developed for compacted soil samples (with and without nanomaterial) using a pressure membrane apparatus. It was found that saturated water content was lower in the soil samples mixed with nanomaterials. The soil hydraulic conductivity also decreased with increasing nanomaterial content, except for S3 soil sample with nano-copper content. The decrease of hydraulic conductivity was possibly caused by the reduction of the effective porosity due to pore clogging. The results from testing samples after one to four drying times show that the largest rise in soil hydraulic conductivity occurred at first or second drying. Adding nanomaterials can reduce the soil hydraulic conductivity by as much as seven times for soil samples with high clay (bentonite) content.

KW - Cyclic hydraulic conductivity

KW - Hydraulic conductivity

KW - Nanomaterials

KW - Soil-bentonite mixture

KW - Soil-water characteristic curves

UR - http://www.scopus.com/inward/record.url?scp=84949202016&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84949202016&partnerID=8YFLogxK

U2 - 10.1007/s12517-015-2038-6

DO - 10.1007/s12517-015-2038-6

M3 - Article

AN - SCOPUS:84949202016

VL - 9

SP - 1

EP - 14

JO - Arabian Journal of Geosciences

JF - Arabian Journal of Geosciences

SN - 1866-7511

IS - 1

M1 - 12

ER -