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dc.contributor.authorVaquero Martinez, José María
dc.contributor.authorCugat Martí, Víctor
dc.contributor.authorSegura Pérez, Ignacio
dc.contributor.authorCalvo Torras, Mari Angels
dc.contributor.authorAguado de Cea, Antonio
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental
dc.date.accessioned2016-12-13T18:37:06Z
dc.date.available2018-12-01T01:31:19Z
dc.date.issued2016-11
dc.identifier.citationVaquero, J.M., Cugat, V., Segura, I., Calvo, M., Aguado, A. Development and experimental validation of an overlay mortar with biocide activity. "Cement & concrete composites", Novembre 2016, vol. 74, p. 109-119.
dc.identifier.issn0958-9465
dc.identifier.urihttp://hdl.handle.net/2117/98186
dc.description.abstractBiodeterioration of concrete by microorganism colonisation may be a problem in several structures, especially in irrigation and hydroelectric canals. The main problem in such structures is the proliferation of algae and cyanobacteria that affect the performance of the structure, increase the maintenance costs and affects its durability. A research was conducted to develop a novel cement-based material with biocide activity that can be used as an overlay mortar in existing structures, such as canals and pipes. With this aim, ten commercial biocides were evaluated in a laboratory campaign to assess the effectiveness of the compounds against the microbial colonisation of concrete. Both mono- and multicomponent formulations were designed from the commercial products, to increase their antimicrobial effect obtaining a set of biocide formulations. The formulations were submitted to a flowchart process to determine their influence on the physical properties of the concrete, evaluate the release of the actives, and their antimicrobial efficiency both before and after accelerated aging processes. During the campaign, some formulations were observed to diminish the strength of the concrete. Such behaviour was normally due to the interaction of the active with the cement hydration process. Other formulations showed a high release of active from the concrete in water, compromising the durability of the treatment. In general, monocomponent formulations did not succeed to fulfill all the requirements, thus multicomponent formulations were analysed. One studied multicomponent formulation presented particularly good results in all properties analysed. This product did not significantly change the properties of concrete and the release of active in water from the concrete was low, while the antimicrobial effects were long lasting.
dc.format.extent11 p.
dc.language.isoeng
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
dc.subject.lcshMortar--Additives
dc.subject.otherBiocide
dc.subject.otherMortar
dc.subject.otherCement
dc.subject.otherBioreceptivity
dc.subject.otherColonisation
dc.subject.otherAlgae
dc.subject.otherBacteria
dc.subject.otherFungi
dc.titleDevelopment and experimental validation of an overlay mortar with biocide activity
dc.typeArticle
dc.subject.lemacMorter (Material de construcció) -- Additius
dc.contributor.groupUniversitat Politècnica de Catalunya. EC - Enginyeria de la Construcció
dc.identifier.doi10.1016/j.cemconcomp.2016.09.004
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S095894651630508X
dc.rights.accessOpen Access
local.identifier.drac19332814
dc.description.versionPostprint (author's final draft)
local.citation.authorVaquero, J.M.; Cugat, V.; Segura, I.; Calvo, M.; Aguado, A.
local.citation.publicationNameCement & concrete composites
local.citation.volume74
local.citation.startingPage109
local.citation.endingPage119


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