Influencia de la adición de la cal viva en concretos elaborados con agregados reciclados de concreto

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dc.contributor.advisorMena Serna, Milton
dc.contributor.authorLanderos Barrera , Juan Carlos
dc.contributor.orcidMena Serna, Milton [0000-0002-7377-2787]
dc.date.accessioned2024-10-29T01:05:46Z
dc.date.available2024-10-29T01:05:46Z
dc.date.created2024-07-24
dc.descriptionEl presente trabajo analiza el desempeño del concreto reciclado con el uso del RCA subproducto de la trituración del RCD en elementos de concreto. La investigación está fundamentada en la sustitución del 20%, 35% y 50% del agregado grueso natural por agregado grueso reciclado (RCA). Así mismo, esta investigación propone el uso de óxido de calcio o Cal viva, como material complementario para la reducción de cemento, que permite la reducción de permeabilidad o porosidad en la mezclas de concreto reciclado, logrado así un aumento de durabilidad en comparación con una mezcla control. Dicho lo anterior se realizará una sustitución del 2% y 5% de óxido de calcio (CaO) como material cementante para estudiar la influencia que tiene este material en concretos con agregados reciclados para posteriormente confrontar los resultados en estado endurecido en referencia a la resistencia a compresión, flexión y resistividad eléctrica para especímenes en cilindros y vigas de concreto a diferentes edades de evolución (7, 14, 28, 56, y 90 días). Por último, realizar un análisis cualitativo por medio del ensayo de microscopia SEM en tres (3) mezclas de concreto en particular. “Mezcla #1; 0% RCA – 0% CaO”, “Mezcla #9; 50% RCA – 0% CaO” & “Mezcla #11; 50% RCA – 5% CaO”.
dc.description.abstractThe present document analyses the performance of recycled concrete with the use of RCA by product of the crushing of RCD in concrete elements. The research is based on the replacement of 20%, 35% and 50% of the natural coarse aggregate with recycled coarse aggregate (RCA). Likewise, this research proposes the use of calcium oxide or quicklime, as a complementary material for the reduction of cement, which allows the reduction of permeability or porosity in recycled concrete mixtures, thus achieving an increase in durability compared to a control mix. Having said the above, a substitution of 2% and 5% of calcium oxide (CaO) as a cementitious material will be carried out to study the influence that this material has on concrete with recycled aggregates to later compare the results in the hardened state in reference to the resistance to compression, flexure and electrical resistivity for specimens in concrete cylinders and beams at different ages of evolution (7, 14, 28, 56, and 90 days). Finally, perform a qualitative analysis through SEM microscopy testing on three (3) particular concrete mixtures. “Mix #1; 0% RCA – 0% CaO”, “Mixture #9; 50% RCA – 0% CaO” & “Mixture #11; 50% RCA – 5% CaO”.
dc.format.mimetypepdf
dc.identifier.urihttp://hdl.handle.net/11349/42429
dc.publisherUniversidad Distrital Francisco José de Caldás
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dc.rights.accesoAbierto (Texto Completo)
dc.rights.accessrightsOpenAccess
dc.subjectRCD = Residuos de construcción y demolición
dc.subjectRCA = Agregados de concreto reciclado
dc.subjectRCA = Concreto reciclado
dc.subjectAR = agregado reciclado
dc.subjectAN = Agregado natural
dc.subjectCaO = Oxido de Cálcio o Cal viva
dc.subjectITZ = Zona te interferência intersticial
dc.subjectSEM = Microscopia de barrido
dc.subjectRN = Recursos naturales
dc.subjectRCD A/CM = Relación Agua – Material cementante
dc.subjectf´c = Resistencia a la compresión
dc.subjectMR = Resistencia a la flexión
dc.subjectAG= Agregado grueso
dc.subjectAF = Agregado fino
dc.subject.keywordRN = Natural resources
dc.subject.keywordRCD = Construction and demolition waste
dc.subject.keywordRCA = Recycled concrete aggregates
dc.subject.keywordRCA = Recycled concrete
dc.subject.keywordAR = Recycled aggregate
dc.subject.keywordAN = Natural aggregate
dc.subject.keywordCaO = Calcium oxide or quicklime
dc.subject.keywordITZ = Interstitial interference zone
dc.subject.keywordSEM = Scanning microscopy
dc.subject.keywordA/CM = Water – Cementitious material ratio
dc.subject.keywordf´c = Compressive strength
dc.subject.keywordMR = Flexural strength
dc.subject.keywordRN = Natural resources
dc.subject.keywordAG= Coarse aggregate
dc.subject.keywordAF = Fine aggregate
dc.subject.lembMaestría en ingeniería civil - Tesis y disertaciones académicas
dc.subject.lembConcreto reciclado
dc.subject.lembAgregados reciclados
dc.subject.lembCal viva
dc.subject.lembPropiedades mecánicas
dc.titleInfluencia de la adición de la cal viva en concretos elaborados con agregados reciclados de concreto
dc.title.titleenglishInfluence of the addition of quicklime in concretes made with recycled concrete aggregates
dc.typemasterThesis
dc.type.coarhttp://purl.org/coar/resource_type/c_7a1f
dc.type.degreeInvestigación-Innovación

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