Work

Mechanical Behaviour of Pond ash Tailings Before and After Biochemical Stabilization

Year: 2025

Type: conference-paper

Abstract: Tailing dam failures, occurring 100 times more frequently than conventional dams (1.2% failure rate), are a global concern, causing waste spillage with adverse economic, environmental, and ecological impacts. This study enhances pond ash mechanical properties using bio-chemical methods: Enzymatic Induced Carbonate Precipitation (EICP) with urease and geopolymerization (Chemical) with sodium silicate and sodium hydroxide. Mohr-Coulomb and Hypoplastic models evaluated untreated and modified tailings’ mechanical behaviour. Both methods stabilize pond ash against Static Liquefaction. However, models fail to accurately represent modified materials due to biochemical alterations, necessitating advanced modeling techniques post-bio-chemical modifications.

Source: IOP Conference Series Earth and Environmental Science

DOI: 10.1088/1755-1315/1480/1/012122

Authors: A. P. Ribera, S. Jain, A. Peña-Olarte, R. Cudmani, S. K. Das

Institutions: Technical University of Munich, Indian Institute of Technology Dhanbad

Language: English

Topic: Tailings Management and Properties

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Responsible consumption and production

Open Access status: diamond

OpenAlex ID: W4409317394

FWCI:

Cites: 3

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Related to: 10