Shear strength characteristics of mechanically biologically treated municipal solid waste (MBT-MSW) from Bangalore

Waste Management
G L Sivakumar BabuL G Santhosh

Abstract

Strength and stiffness properties of municipal solid waste (MSW) are important in landfill design. This paper presents the results of comprehensive testing of shear strength properties of mechanically biologically treated municipal solid waste (MBT-MSW) in laboratory. Changes in shear strength of MSW as a function of unit weight and particle size were investigated by performing laboratory studies on the MSW collected from Mavallipura landfill site in Bangalore. Direct shear tests, small scale and large scale consolidated undrained and drained triaxial tests were conducted on reconstituted compost reject MSW samples. The triaxial test results showed that the MSW samples exhibited a strain-hardening behaviour and the strength of MSW increased with increase in unit weight. Consolidated drained tests showed that the mobilized shear strength of the MSW increased by 40% for a unit weight increase from 7.3kN/m(3) to 10.3kN/m(3) at 20% strain levels. The mobilized cohesion and friction angle ranged from 5 to 9kPa and 8° to 33° corresponding to a strain level of 20%. The consolidated undrained tests exhibited reduced friction angle values compared to the consolidated drained tests. The friction angle increased with increase in the unit ...Continue Reading

References

Sep 26, 2008·Waste Management·Krishna R ReddyJean E Bogner
May 9, 2009·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Krishna R ReddyThomas Lagier
Feb 16, 2010·Waste Management·Dimitrios ZekkosAndreas Theodoratos

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Citations

Sep 24, 2016·Waste Management·Shi-Jin FengH X Chen
May 22, 2016·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Igor Petrovic
Aug 22, 2017·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Shi-Jin FengHai-Jian Xie
Jun 20, 2021·Environmental Science and Pollution Research International·Zhenying ZhangChengyu Nie

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