Influence of Biochar on Geotechnical Properties of Clayey Soil: From the Perspective of Landfill Caps and Bioengineered Slopes

P. V. Divya*, Ankit Garg, K. P. Ananthakrishnan

*Corresponding author for this work

Research output: Chapter in Book or Report/Conference proceedingConference Proceedingpeer-review

3 Citations (Scopus)

Abstract

The present study investigated the influence of biochar on various geotechnical properties of clayey soil. Biochar, a carbon-rich product, was amended with the soil at different percentages such as 5, 10 and 15%. Laboratory tests were conducted to evaluate the feasibility of utilization of biochar in enhancing the integrity of soil slopes with an emphasis on landfill covers and bioengineered slopes. Scanning electron microscopy (SEM) tests were conducted to analyse micro-porous structure of biochar and soil-biochar mix. The SEM micrographs indicated the porous structure of the biochar and a good interaction with the clay particles. It was concluded from the present study that the biochar amended soil can have steeper and stable slopes compared to soil without biochar amendments. The compressibility of the soil was also decreased with biochar amendment.

Original languageEnglish
Title of host publicationProblematic Soils and Geoenvironmental Concerns - Proceedings of IGC 2018
EditorsMadhavi Latha Gali, P. Raghuveer Rao
PublisherSpringer Science and Business Media Deutschland GmbH
Pages137-146
Number of pages10
ISBN (Print)9789811562365
DOIs
Publication statusPublished - 2021
Externally publishedYes
EventIndian Geotechnical Conference,IGC 2018 - Bangalore, India
Duration: 13 Dec 201815 Dec 2018

Publication series

NameLecture Notes in Civil Engineering
Volume88
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Conference

ConferenceIndian Geotechnical Conference,IGC 2018
Country/TerritoryIndia
CityBangalore
Period13/12/1815/12/18

Keywords

  • Biochar
  • Bioengineered soil slopes
  • Soil stabilization

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