Ageing effects on the stiffness behaviour of a microbiologically treated and compacted soil

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dc.contributor	Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica
dc.contributor	Universitat Politècnica de Catalunya. MSR - Mecànica del Sòls i de les Roques
dc.contributor.author	Morales, Laura
dc.contributor.author	Romero Morales, Enrique Edgar
dc.contributor.author	Pineda Jiménez, Jubert Andrés
dc.contributor.author	Garzon, E.
dc.contributor.author	Giménez, Antonio
dc.date	2012
dc.identifier.citation	Morales, L. [et al.]. Ageing effects on the stiffness behaviour of a microbiologically treated and compacted soil. A: European Conference on Unsaturated Soils. "Unsaturated Soils: Research and Aplications". Napoles: Springer, 2012, p. 371-376.
dc.identifier.citation	978-3-642-31115-4
dc.identifier.uri	http://hdl.handle.net/2117/18245
dc.language.iso	eng
dc.publisher	Springer
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
dc.subject	Clay soils -- Stability
dc.subject	Sòls argilosos -- Estabilitat
dc.title	Ageing effects on the stiffness behaviour of a microbiologically treated and compacted soil
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/conferenceObject
dc.description.abstract	The paper describes an experimental study aimed at evaluating the evolution of some mechanical properties, specifically small-strain stiffness and unconfined compressive strength, induced by ageing after a microbiological treatment on a compacted soil. Bacillaceae microorganisms were used to induce microbial calcium carbonate precipitation and improve the mechanical properties of a compacted clayey silt. After compaction, samples were left to age and soil stiffness tracked every 24 hours using shear wave velocity measurements (bender elements). Parallel tests were run to determine the unconfined compressive strength at different elapsed times (just after compaction, 2, 4 and 7 days).

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