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A platform for research: civil engineering, architecture and urbanism
Geotechnical Characterization of Sugarcane Bagasse Biochar-Amended Landfill Cover Soil
Biochar is a solid carbonaceous material acquired from the pyrolysis of biomass. Biochar plays a major role in the reduction of bioavailability of heavy metals, enhancement of soil productivity, mitigation of greenhouse gases, etc. The biochar-amended soils could be used as a landfill biocover, and the evaluation of their geotechnical characteristics such as compressibility and shear strength is inevitable. This paper briefs about the compaction, consolidation and shear strength characteristics of biochar-amended natural soil. The sugarcane bagasse (SCB) biochar is produced at a temperature of 350 °C and used for the study. The biochar is mixed in different proportions 0, 5, 10 and 15% by weight of soil, and the compaction tests were carried out to arrive at the optimum moisture content (OMC) and maximum dry density (MDD). Then, the consolidation and direct shear tests were conducted for samples compacted at OMC and MDD. Based on the test results, it is observed that the MDD values are decreasing, and OMC values are increasing upon increasing the percentage addition of biochar. The SCB biochar tends to enhance the undrained shear strength parameters of the soil. The reduction in density, improved cohesion and friction parameters of biochar-amended soils is suitable for the stability of landfill cover slopes.
Geotechnical Characterization of Sugarcane Bagasse Biochar-Amended Landfill Cover Soil
Biochar is a solid carbonaceous material acquired from the pyrolysis of biomass. Biochar plays a major role in the reduction of bioavailability of heavy metals, enhancement of soil productivity, mitigation of greenhouse gases, etc. The biochar-amended soils could be used as a landfill biocover, and the evaluation of their geotechnical characteristics such as compressibility and shear strength is inevitable. This paper briefs about the compaction, consolidation and shear strength characteristics of biochar-amended natural soil. The sugarcane bagasse (SCB) biochar is produced at a temperature of 350 °C and used for the study. The biochar is mixed in different proportions 0, 5, 10 and 15% by weight of soil, and the compaction tests were carried out to arrive at the optimum moisture content (OMC) and maximum dry density (MDD). Then, the consolidation and direct shear tests were conducted for samples compacted at OMC and MDD. Based on the test results, it is observed that the MDD values are decreasing, and OMC values are increasing upon increasing the percentage addition of biochar. The SCB biochar tends to enhance the undrained shear strength parameters of the soil. The reduction in density, improved cohesion and friction parameters of biochar-amended soils is suitable for the stability of landfill cover slopes.
Geotechnical Characterization of Sugarcane Bagasse Biochar-Amended Landfill Cover Soil
Lecture Notes in Civil Engineering
Hau, Kong Kian (editor) / Gupta, Ashok Kumar (editor) / Chaudhary, Sandeep (editor) / Gupta, Tanmay (editor) / Soundara, B. (author) / Kumar, D. Vignesh (author) / Praveen, N. (author) / Ranjith, M. (author) / Raj, E. Naveen (author)
Recent Advances in Structural Engineering and Construction Management ; Chapter: 43 ; 531-540
2022-09-28
10 pages
Article/Chapter (Book)
Electronic Resource
English
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