Sedimentary residual soil as a waste containment barrier material

Md Humayun Kabir, Mohd. Raihan Taha

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Compacted soil liners are widely used as a waste containment barrier to control or restrict the migration of contaminant/leachate from the landfill into the environment because of their low hydraulic conductivity, attenuation capacity, resistance to damage or puncture, and cost effectiveness. Compacted soil liners are usually composed of natural inorganic clays or clayey soils. If natural clayey soils are not available, kaolinite or commercially available high swelling clay (bentonite) can be mixed with local soils or sand. This study examines the potential of a sedimentary residual soil as a waste containment barrier in landfills. The laboratory experiments conducted were: grain size distribution, Atterberg limits, swelling tests, compaction, volumetric shrinkage strain, unconfined compression, hydraulic conductivity and cation exchange capacity. The experimental results were compared with those recommended by various researchers for evaluation of its suitability. Test results showed that the soil compacted with modified Proctor compaction effort possesses low hydraulic conductivity (≤1 ×10-7 cm/s) and adequate strength. In addition, compacted sedimentary residual soil exhibited little volumetric shrinkage strain of below 4% at this compaction effort. Thus, the sedimentary residual soil could be effectively used for the construction of a waste containment barrier in landfills.

Original languageEnglish
Pages (from-to)505-518
Number of pages14
JournalSoil and Sediment Contamination
Volume13
Issue number5
DOIs
Publication statusPublished - 2004

Fingerprint

containment barrier
residual soil
compacted soils
landfills
Soil
clay soils
hydraulic conductivity
Soils
shrinkage
soil
landfill
compaction
Hydraulic conductivity
Compaction
liner
Land fill
swelling
Waste Disposal Facilities
bentonite
kaolinite

Keywords

  • Activity
  • Compacted soil liner
  • Hydraulic conductivity
  • Sedimentary residual soil
  • Volumetric shrinkage
  • Waste containment barrier

ASJC Scopus subject areas

  • Soil Science

Cite this

Sedimentary residual soil as a waste containment barrier material. / Kabir, Md Humayun; Taha, Mohd. Raihan.

In: Soil and Sediment Contamination, Vol. 13, No. 5, 2004, p. 505-518.

Research output: Contribution to journalArticle

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