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A new microbicidal pervious concrete pavement for hospital parking-lots: assessment of the modulus of elasticity

2021-01Journal article Open access
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dc.contributor.authorOliveira, Evailton Arantes de
dc.contributor.authorDebrah, Justice Kofi
dc.contributor.authorGuerreiro, Maria João Correia de Simas
dc.contributor.authorDinis, Maria Alzira Pimenta
dc.date.accessioned2021-01-11T10:07:43Z
dc.date.available2021-01-11T10:07:43Z
dc.date.issued2021-01
dc.description.abstractIn the coronavirus pandemic (COVID-19), it is important to articulate a safeguard against urban contamination originating from hospitals, mainly the tires of vehicles that travel in the hospital parkinglots and contaminating the various parts of the city through traffic on urban roads. With the purpose of disinfecting the pavement of hospital parking-lots to prevent diseases, this research proposes the use of a new pavement composed of pervious concrete with calcium hydroxide (Ca(OH)2) additive, i.e., lime powder. The well-known powder lime becomes a disinfectant with a microbicidal effect which increases the pH of the pavement, being a low cost and an abundant material. Studies have shown that this additive affects the mechanical strength of pervious concrete when added to its mixture. Accordingly, the objective of the study is to find a balance between mechanical strength and the ideal proportion of lime powder additive in the pervious concrete mixture through finite element prototypes subjected to vertical loads of 10,000 N with variation in the modulus of elasticity. The results of the structural simulations indicate the prototype with the best performance ratio is 1:0.8:4 (cement:Ca(OH)2:limestone), compressive strain of 15.70 kg/cm2, density of 1,971.42 kg/m3 and modulus of elasticity of 1,480.22 MPa, with demonstrates a satisfactory mechanical performance for the use of this new pavement in hospital parking-lots.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAPA: de Oliveira, E. A., Debrah, J. K., Guerreiro, M. J. C. d. S., & Dinis, M. A. P. (2021). A new microbicidal pervious concrete pavement for hospital parking-lots: assessment of the modulus of elasticity. Procedia Environmental Science, Engineering and Management 8(2), 335-343. http://procedia-esem.eu/pdf/issues/2021/no2/4_36_deOliveira_21.pdfpt_PT
dc.identifier.issn2392-9545
dc.identifier.urihttp://hdl.handle.net/10284/9217
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherNational Society of Environmental Science and Engineering (SNSIM)pt_PT
dc.relation.publisherversionhttp://procedia-esem.eu/pdf/issues/2021/no2/4_36_deOliveira_21.pdfpt_PT
dc.subjectCalcium hydroxidept_PT
dc.subjectElasticitypt_PT
dc.subjectLime powderpt_PT
dc.subjectMicrobicidal pavementpt_PT
dc.subjectPervious concretept_PT
dc.titleA new microbicidal pervious concrete pavement for hospital parking-lots: assessment of the modulus of elasticitypt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceCluj-Napoca, Romaniapt_PT
oaire.citation.endPage343pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPage335pt_PT
oaire.citation.titleProcedia Environmental Science, Engineering and Managementpt_PT
oaire.citation.volume8pt_PT
person.familyNameDinis
person.givenNameMaria Alzira Pimenta
person.identifier493603
person.identifier.ciencia-id4710-147D-FDAF
person.identifier.orcid0000-0002-2198-6740
person.identifier.ridF-3309-2011
person.identifier.scopus-author-id55539804000
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication1e85592a-e8e2-4aea-bd8e-1007c94388c0
relation.isAuthorOfPublication.latestForDiscovery1e85592a-e8e2-4aea-bd8e-1007c94388c0

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