Durability of Sodium Alginate-Modified Enzyme-Induced Calcium Precipitation (EICP) Treated Sands
Publication: Geo-Congress 2024
ABSTRACT
Biological techniques for enhancing soil quality have gained attention as sustainable and long-lasting solutions for soil improvement. One such technique is enzyme-induced calcium precipitation (EICP), which involves the use of ureolysis to precipitate calcium carbonate (CaCO3) in soil. This paper explores the potential of EICP as a soil improvement technique and investigates the use of sodium alginate (SA) biopolymer to enhance its effectiveness. The durability of SA-assisted EICP-treated sand is assessed through various durability tests, including wetting-drying cycles, sulfate resistance, and the effects of curing and drying temperatures. The results provide insights into the long-term performance of polymer-assisted EICP soil treatment.
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Information & Authors
Information
Published In
Geo-Congress 2024
Pages: 196 - 206
History
Published online: Feb 22, 2024
ASCE Technical Topics:
- [Inorganic compounds]
- Biological processes
- Calcium
- Calcium carbonate
- Chemical compounds
- Chemical elements
- Chemicals
- Chemistry
- Climates
- Environmental engineering
- Enzymes
- Geomechanics
- Geotechnical engineering
- Meteorology
- Organic compounds
- Pollution
- Precipitation
- Salts
- Sodium
- Soil dynamics
- Soil mechanics
- Soil pollution
- Soil stabilization
- Soil treatment
- Waste management
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