Experimental study on the effect of chitosan biopolymer on sandy soil stabilization

Shariatmadari, Nader and Reza, Mohammad and Tasuji, Amiri and Ghadir, Pooria and Javadi, A. Akbar (2020) Experimental study on the effect of chitosan biopolymer on sandy soil stabilization. E3S Web of Conferences, 195. 06007. ISSN 2555-0403 (https://doi.org/10.1051/e3sconf/202019506007)

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Abstract

Due to the environmental impacts of conventional soil stabilization materials, such as cement, ongoing efforts have been carried out by different researchers to find alternative economical materials for substitution. Biopolymers are environmentally friendly materials that are widely used in different geoenvironmental applications such as removal of heavy metals from contaminated soils, reduction of soil hydraulic conductivity, erosion control, and soil improvement. In this research the feasibility of using chitosan biopolymer for sandy soil stabilization has been studied. The effects of biopolymer content, curing time, and curing conditions have investigated using unconfined compression tests. The results indicated that incorporation of chitosan has the potential to increase the interparticle cohesion between the particles and considerable improvement of sandy soil mechanical properties. After initial strengthening of the soil, some strength reduction over time was observed due to the degradation characteristics of the chitosan. With regards to the curing condition, better performances at dry condition compare to the wet and saturated environment were achieved. In addition to soil mechanical properties, the pore plugging effect of chitosan biopolymer on highly permeable sandy soil has been studied in this study.

  • Item type:Article
    ID code:87470
    Dates:
    Date
    Event
    16 October 2020
    Published
    Notes:Funding Information: The project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 778120. Publisher Copyright: © The Authors, published by EDP Sciences 2020.
    Subjects:Science > Chemistry
    Department:Faculty of Engineering > Civil and Environmental Engineering
    Depositing user: Pure Administrator
    Date deposited:30 Nov 2023 13:56
    Last modified:27 Apr 2024 13:36
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/87470
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