Effect of Sporosarcina Pasteurii on the strength properties of compressed earth specimens

Microbial biodeposition of calcite induction for improving the performance of rammed earth is a research area that must be analysed in a representative environment. This analysis must consider the compaction force, particle size distribution and curing process as production variables. This paper inv...

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Autores: Bernat Masó, Ernest|||0000-0002-7080-0957, Gil Espert, Lluís|||0000-0002-2007-4846, Escrig Pérez, Christian|||0000-0002-2412-007X, Barbé, Jordi, Cortés, Pilar
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/116123
Acceso en línea:https://hdl.handle.net/2117/116123
https://dx.doi.org/10.3989/mc.2018.12316
Access Level:acceso abierto
Palabra clave:Calcium carbonate
Strength of materials
Organic material
Curing
Compressive strength
Characterisation
Carbonat de calci
Resistència de materials
Àrees temàtiques de la UPC::Enginyeria dels materials
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spelling Effect of Sporosarcina Pasteurii on the strength properties of compressed earth specimensBernat Masó, Ernest|||0000-0002-7080-0957Gil Espert, Lluís|||0000-0002-2007-4846Escrig Pérez, Christian|||0000-0002-2412-007XBarbé, JordiCortés, PilarCalcium carbonateStrength of materialsCalcium carbonateOrganic materialCuringCompressive strengthCharacterisationCarbonat de calciResistència de materialsÀrees temàtiques de la UPC::Enginyeria dels materialsMicrobial biodeposition of calcite induction for improving the performance of rammed earth is a research area that must be analysed in a representative environment. This analysis must consider the compaction force, particle size distribution and curing process as production variables. This paper investigates the effects of adding specific bacteria, Sporosarcina Pasteurii, into compressed earth cubes and the effect of production variables. Uniaxial compressive tests and direct shear tests have been conducted for 80 specimens. The results indicate that calcite precipitation interacts with the drying process of clay/silt resulting in reducing the compressive strength, the apparent cohesion and the friction angle. Finally, bacterial activity, which is more likely in samples cured in a high humidity environment, tends to reduce the dilatancy effect.Peer ReviewedInstituto Técnico de la Construcción y del Cemento20182018-02-0120182018-04-10journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/116123https://dx.doi.org/10.3989/mc.2018.12316reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 3.0 Spainhttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1161232026-05-27T15:37:01Z
dc.title.none.fl_str_mv Effect of Sporosarcina Pasteurii on the strength properties of compressed earth specimens
title Effect of Sporosarcina Pasteurii on the strength properties of compressed earth specimens
spellingShingle Effect of Sporosarcina Pasteurii on the strength properties of compressed earth specimens
Bernat Masó, Ernest|||0000-0002-7080-0957
Calcium carbonate
Strength of materials
Calcium carbonate
Organic material
Curing
Compressive strength
Characterisation
Carbonat de calci
Resistència de materials
Àrees temàtiques de la UPC::Enginyeria dels materials
title_short Effect of Sporosarcina Pasteurii on the strength properties of compressed earth specimens
title_full Effect of Sporosarcina Pasteurii on the strength properties of compressed earth specimens
title_fullStr Effect of Sporosarcina Pasteurii on the strength properties of compressed earth specimens
title_full_unstemmed Effect of Sporosarcina Pasteurii on the strength properties of compressed earth specimens
title_sort Effect of Sporosarcina Pasteurii on the strength properties of compressed earth specimens
dc.creator.none.fl_str_mv Bernat Masó, Ernest|||0000-0002-7080-0957
Gil Espert, Lluís|||0000-0002-2007-4846
Escrig Pérez, Christian|||0000-0002-2412-007X
Barbé, Jordi
Cortés, Pilar
author Bernat Masó, Ernest|||0000-0002-7080-0957
author_facet Bernat Masó, Ernest|||0000-0002-7080-0957
Gil Espert, Lluís|||0000-0002-2007-4846
Escrig Pérez, Christian|||0000-0002-2412-007X
Barbé, Jordi
Cortés, Pilar
author_role author
author2 Gil Espert, Lluís|||0000-0002-2007-4846
Escrig Pérez, Christian|||0000-0002-2412-007X
Barbé, Jordi
Cortés, Pilar
author2_role author
author
author
author
dc.subject.none.fl_str_mv Calcium carbonate
Strength of materials
Calcium carbonate
Organic material
Curing
Compressive strength
Characterisation
Carbonat de calci
Resistència de materials
Àrees temàtiques de la UPC::Enginyeria dels materials
topic Calcium carbonate
Strength of materials
Calcium carbonate
Organic material
Curing
Compressive strength
Characterisation
Carbonat de calci
Resistència de materials
Àrees temàtiques de la UPC::Enginyeria dels materials
description Microbial biodeposition of calcite induction for improving the performance of rammed earth is a research area that must be analysed in a representative environment. This analysis must consider the compaction force, particle size distribution and curing process as production variables. This paper investigates the effects of adding specific bacteria, Sporosarcina Pasteurii, into compressed earth cubes and the effect of production variables. Uniaxial compressive tests and direct shear tests have been conducted for 80 specimens. The results indicate that calcite precipitation interacts with the drying process of clay/silt resulting in reducing the compressive strength, the apparent cohesion and the friction angle. Finally, bacterial activity, which is more likely in samples cured in a high humidity environment, tends to reduce the dilatancy effect.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018-02-01
2018
2018-04-10
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/116123
https://dx.doi.org/10.3989/mc.2018.12316
url https://hdl.handle.net/2117/116123
https://dx.doi.org/10.3989/mc.2018.12316
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 3.0 Spain
http://creativecommons.org/licenses/by/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 3.0 Spain
http://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Instituto Técnico de la Construcción y del Cemento
publisher.none.fl_str_mv Instituto Técnico de la Construcción y del Cemento
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869410769179770880
score 15,300719

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