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Towards Sustainable Soil Stabilization in Peatlands: Secondary Raw Materials as an Alternative
Department of Environmental Science, University of Latvia, LV-1004 Riga, Latvia.
Chair of Rural Building and Water Management, Estonian University of Life Sciences, 51014 Tartu, Estonia.
Chair of Rural Building and Water Management, Estonian University of Life Sciences, 51014 Tartu, Estonia.
Department of Geology, University of Latvia, LV-1004 Riga, Latvia.
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2021 (English)In: Sustainability, E-ISSN 2071-1050, Vol. 13, p. 1-26, article id 6726Article, review/survey (Refereed) Published
Abstract [en]

Implementation of construction works on weak (e.g., compressible, collapsible, expansive)soils such as peatlands often is limited by logistics of equipment and shortage of available andapplicable materials. If preloading or floating roads on geogrid reinforcement or piled embankmentscannot be implemented, then soil stabilization is needed. Sustainable soil stabilization in anenvironmentally friendly way is recommended instead of applying known conventional methodssuch as pure cementing or excavation and a single replacement of soils. Substitution of conventionalmaterial (cement) and primary raw material (lime) with secondary raw material (waste and byproductsfrom industries) corresponds to the Sustainable Development Goals set by the United Nations,preserves resources, saves energy, and reduces greenhouse gas emissions. Besides traditional materialusage, soil stabilization is achievable through various secondary raw materials (listed accordingto their groups and subgroups): 1. thermally treated waste products: 1.1. ashes from agricultureproduction; 1.2. ashes from energy production; 1.3. ashes from various manufacturing; 1.4. ashesfrom waste processing; 1.5. high carbon content pyrolysis products; 2. untreated waste and newproducts made from secondary raw materials: 2.1. waste from municipal waste biological treatmentand landfills; 2.2. waste from industries; 3. new products made from secondary raw materials:3.1. composite materials. Efficient solutions in environmental engineering may eliminate excessiveamounts of waste and support innovation in the circular economy for sustainable future.

Place, publisher, year, edition, pages
MDPI, 2021. Vol. 13, p. 1-26, article id 6726
Keywords [en]
circular economy approach, material cycling, road construction materials, soil stabilization, secondary raw materials, waste valorization, weak soil
National Category
Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:mau:diva-43383DOI: 10.3390/su13126726ISI: 000666373000001Scopus ID: 2-s2.0-85108610954OAI: oai:DiVA.org:mau-43383DiVA, id: diva2:1565678
Available from: 2021-06-14 Created: 2021-06-14 Last updated: 2023-10-05Bibliographically approved

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Jani, Yahya

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