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Stabilization of material - upgrading of soils and sediments to use in geo-constructions
Statens geotekniska institut.
Statens geotekniska institut.
Vise andre og tillknytning
2015 (engelsk)Inngår i: Proceedings of the International Conference on Deep Mixing 2015, San Francisco, USA, June 2-6, 2015 / [ed] Sehn, A, Large, ME, Marzano, IP, Takahashi, H, Howthorne, New Jersey: Deep Foundations Institute, DFI , 2015, s. 405-414Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Constructions activities in cities often imply large volumes of surplus material which could be treated by stabilization for re-use in new geotechnical constructions. Modification of dredged sediments by e.g. stabilization/solidification (s/s) is an example of sustainable handling option implying dredged contaminated sediments to become a potential resource for civil engineering constructions. The SMOCS project (Sustainable Management of Contaminated Sediments) within the Baltic Sea Region Programme 2007-2013 has developed a guideline based on a sustainability approach free to download at www.smocs.eu. The paper presents key issues in the guideline and highlights the importance of performing a field test as part of the design process. Two field tests with s/s-treated dredged sediments for new port areas are presented. Strength, permeability and leakage properties of s/s-treated contaminated sediments make beneficial use in geo-constructions possible. The influence of possible physical/chemical deterioration processes on the durability has been studied showing that freeze/thaw cycles might degrade the monolith of s/s-treated sediments. Consequently s/s-constructions shall be below freezing depth. Other deterioration processes such as salt and sulfate penetration were found of minor importance. Research is ongoing to study the influence of and how to cope with freeze/thaw cycles on the long-term properties.

sted, utgiver, år, opplag, sider
Howthorne, New Jersey: Deep Foundations Institute, DFI , 2015. s. 405-414
Emneord [en]
Sediment, Dredging, Contamination, Pollution, Stabilization, Solidification, Field test, Durability, Conference, San Francisco, 2015, English
HSV kategori
Identifikatorer
URN: urn:nbn:se:swedgeo:diva-820Lokal ID: 000081339OAI: oai:DiVA.org:swedgeo-820DiVA, id: diva2:1360406
Konferanse
International Conference on Deep Mixing 2015, San Francisco, USA, June 2-6, 2015
Tilgjengelig fra: 2019-10-12 Laget: 2019-10-12 Sist oppdatert: 2019-10-12

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