Zein Biopolymer for Enhancing Erosion Resistance of Sand
Publication: Geo-Congress 2024
ABSTRACT
The susceptibility of cohesionless soil to erosion has been a significant factor contributing to the failure of geotechnical infrastructure. This study aims to investigate the erosion resistance of zein biopolymer-treated sands. Cohesionless sand is used, and its index properties are determined. Treated specimens are prepared by mixing dry sands with 1% biopolymer content and compacted in transparent molds. Comparative analyses are conducted between the treated and untreated specimens using a hole erosion test, considering two hydraulic gradients. The results show that the erosion resistance of treated specimens significantly improves by up to 97% to 99% compared to the untreated specimens. The hydraulic shear stress and erosion rate decrease with the curing period, while erosion mass flux decreases with increasing hydraulic gradients. Curing periods and hydraulic gradients are significant factors influencing internal erosion. The findings demonstrate the potential of zein biopolymer as a novel method to enhance erosion resistance, suggesting its application in soil erosion control.
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Information & Authors
Information
Published In
Geo-Congress 2024
Pages: 474 - 479
History
Published online: Feb 22, 2024
ASCE Technical Topics:
- Cohesionless soils
- Compacted soils
- Design (by type)
- Engineering fundamentals
- Engineering materials (by type)
- Erosion
- Geology
- Geomechanics
- Geotechnical engineering
- Hydraulic engineering
- Hydraulic gradients
- Hydraulic properties
- Load and resistance factor design
- Load factors
- Materials engineering
- Polymer
- Soil mechanics
- Soil properties
- Soils (by type)
- Structural design
- Synthetic materials
- Water and water resources
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