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dc.contributor.author
Rodrigues dos Santos, Julio
dc.contributor.author
Effting, Carmeane
dc.contributor.author
Serbent, María Pilar
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dc.contributor.author
Matsuda, Josie Budag
dc.date.available
2024-03-11T11:16:04Z
dc.date.issued
2023-10
dc.identifier.citation
Rodrigues dos Santos, Julio; Effting, Carmeane; Serbent, María Pilar; Matsuda, Josie Budag; Biomineralization of calcium carbonate in concrete by the action of Bacillus pumilus; Assoc Brasileira Engenharia Sanitaria Ambiental; Engenharia Sanitaria E Ambiental; 28; 10-2023; 1-8
dc.identifier.issn
1413-4152
dc.identifier.uri
http://hdl.handle.net/11336/229943
dc.description.abstract
The present study evaluated the viability of the bacterium Bacillus pumilus as a biological agent in the process of calcium carbonate precipitation on a concrete surface. This evaluation was carried out in a curing tank of concrete samples, applying a nutrient solution enriched with B. pumilus for 48 h. During the experimental period, a urease test was performed to determine whether the microorganisms could hydrolyze urea by the action of the urease enzyme. The results revealed that B. pumilus is susceptible to converting urea into ammonium and increasing the medium pH. There was also a 0.03 g cm-2 reduction in water absorption by capillarity in specimens biomineralized with B. pumilus compared to conventional specimens. Due to the degree of surface protection, microorganisms have reduced the material’s porosity, causing an increase in tensile strength by diametric compression of approximately 9.0 MPa. The lower height of capillary rise observed was 1.83 cm in biomineralized specimens and 3.83 cm for conventional specimens. The results obtained with the scanning electron microscope and energy dispersive spectroscopy indicate the presence of CaCO3 precipitated by the bacteria. In general, the results obtained in this study show that B. pumilus may improve its mechanical properties when it is applied superficially to concrete.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Assoc Brasileira Engenharia Sanitaria Ambiental
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
SELF-HEALING
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BACILLUS PUMILUS
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CALCIUM CARBONATE
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BIOMINERALIZATION
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BIOCONCRETE
dc.subject.classification
Otras Ingeniería Civil
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dc.subject.classification
Ingeniería Civil
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Biomineralization of calcium carbonate in concrete by the action of Bacillus pumilus
dc.title
Biomineralização de carbonato de cálcio no concreto pela ação do Bacillus pumilus
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-03-08T14:28:47Z
dc.identifier.eissn
1809-4457
dc.journal.volume
28
dc.journal.pagination
1-8
dc.journal.pais
Brasil
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dc.description.fil
Fil: Rodrigues dos Santos, Julio. Universidade Federal de Santa Catarina; Brasil
dc.description.fil
Fil: Effting, Carmeane. Universidade Federal de Santa Catarina; Brasil
dc.description.fil
Fil: Serbent, María Pilar. Universidade Federal de Santa Catarina; Brasil. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigación y Tecnología Química. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Centro de Investigación y Tecnología Química; Argentina
dc.description.fil
Fil: Matsuda, Josie Budag. Centro Universitário para o Desenvolvimento do Alto Vale do Itajaí; Brasil
dc.journal.title
Engenharia Sanitaria E Ambiental
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-41522023000100138&tlng=en
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1590/s1413-415220220277
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