Shear strength of municipal solid waste

Felix Okonta, Frank Tchane

Research output: Contribution to conferencePaperpeer-review

1 Citation (Scopus)


The life of a landfill is dependent on compaction and shear strength properties of the domestics in relation to the landfill slopes. The shear strength of domestic waste collected from Johannesburg landfill site was investigated. The compaction characteristics i.e. optimum moisture content (womc), and maximum dry density (?mdd) as well as the shear strength parameters of the bulk and reconstituted waste mass were investigated in the laboratory. The result of series of modified proctor compaction revealed that the density of waste mass in dependent on the relative constitution of organics. Waste mass constituted of 50% of organics, yielded the maximum densities. Maximum density of waste mass decreased with percentage of plastic and waste mass constituted of more than 20% plastics was not compactible. The friction angle of reconstituted waste decreased with increase in the percentage of plastics and for waste mass with greater than 5% plastic by mass, increase in moisture can threaten the stability of the landfill as the friction angle decreased to values close to zero. Thus recycling by separation at source and informal scavenging should be used to control the plastic component of the waste stream

Original languageEnglish
Number of pages4
Publication statusPublished - 2017
Externally publishedYes
Event19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017 - Seoul, Korea, Republic of
Duration: 17 Sept 201722 Sept 2017


Conference19th International Conference on Soil Mechanics and Geotechnical Engineering, ICSMGE 2017
Country/TerritoryKorea, Republic of


  • Bulk unit weight
  • Maximum dry density
  • Municipal solid waste
  • Optimum moisture content
  • Reconstituted waste

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology


Dive into the research topics of 'Shear strength of municipal solid waste'. Together they form a unique fingerprint.

Cite this