Yaser Ghafoori (Author), Parisa Samadi (Author), Pooria Ghadir (Author), Stanislav Lenart (Author), Sabina Kramar (Author), Hamed Khodadadi Tirkolae (Author)

Abstract

The frequent dredging of sediments from port areas often leads to the rapid accumulation of excess material, potentially resulting in landfill challenges. Dredged marine sediments typically exhibit high water content, a significant proportion of fine-grained soil, limited bearing capacity, substantial settlement tendencies, and low shear strength. Addressing these issues is imperative for construction projects on such soil types. Recent trends in soil stabilization have witnessed the rising popularity of sustainable bio-binders, particularly biopolymers, owing to their environmentally friendly attributes and extensive use in various geoenvironmental applications. This study investigates the utilization of four different types of biopolymers for the stabilization of marine dredged sediment sourced from the Port of Koper, Slovenia. The research investigates the influence of biopolymer incorporation on the geotechnical properties of biopolymer-treated sediment through Atterberg limits and cone falling tests. In addition, samples were analyzed by scanning electron microscopy (SEM) to elucidate the interaction between biopolymer and the sediment. The findings demonstrate a significant enhancement of undrained shear strength with the addition of biopolymers to the sediment. The formation of hydrogel within the soil pores not only increases the sediment consistency but also positively affects the soil's shear strength.

Keywords

morski sediment;biopolimer;stabilizacija;konsistenca;nedrenirana strižna trdnost;marine sediment;biopolymer;stabilization;consistency;undrained shear strength;

Data

Language: English
Year of publishing:
Typology: 1.08 - Published Scientific Conference Contribution
Organization: ZAG - Slovenian National Building and Civil Engineering Institute
Publisher: International Society for Soil Mechanics and Geotechnical Engineering
UDC: 624
COBISS: 244927235 Link will open in a new window
Views: 253
Downloads: 152
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Other data

Secondary language: Slovenian
Secondary keywords: morski sediment;biopolimer;stabilizacija;konsistenca;nedrenirana strižna trdnost;
Pages: Str. 1-9
DOI: doi.org/10.53243/ICBBG2025-13
ID: 27047584