Treatment of recycled aggregates for the production of a durable structural concrete

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dc.contributor.advisorMartirena Hernández, José Fernando
dc.contributor.advisorLinsel, Stefan
dc.contributor.authorLichtblau, Sandra Marina
dc.coverage.spatialSanta Claraen_US
dc.date.accessioned2021-08-09T16:46:59Z
dc.date.available2021-08-09T16:46:59Z
dc.date.issued2019
dc.description.abstractRecycled concrete aggregate from unknown sources has been characterized. A new treatment method of recycled aggregate, called encapsulation or coating, has been used to enhance the properties. With the designed experimental program, it has been proved, that the encapsulation treatment of the coarse fraction from 10-5 mm of recycled concrete aggregate has a positive effect on the physical properties of the aggregate such as water absorption, as well as in concrete properties of a 100 % recycled aggregate concrete (RAC). With the incorporation of the coated aggregate, compressive strength has increased. Microstructural analysis shows a denser interfacial transition zone (ITZ) between the encapsulated aggregate and the cement paste compared to the ITZ between a non-encapsulated aggregate and cement paste. The subsequent durability testing program compared the behaviour of different recycled aggregate concretes with natural aggregate concrete (NAC) under three environmental conditions. The pore structure and migration properties of concretes has been assessed during up to 30 month of exposure, by using several durability test methods. Test results show a viable possibility for concretes entirely produced with recycled concrete aggregate, when the encapsulation treatment is applieden_US
dc.description.statusnon-publisheden_US
dc.identifier.urihttps://dspace.uclv.edu.cu/handle/123456789/12809
dc.language.isoen_USen_US
dc.publisherUniversidad Central "Marta Abreu" de Las Villasen_US
dc.rightsEste documento es propiedad parimonial de la Universidad Central "Marta Abreu" de Las Villas. Los usuarios podrán hacer uso de esta obra bajo la siguiente licencia: Creative Commons: Atribución-No Comercial-Compartir Igual 4.0 License.en_US
dc.subjectRecycled aggregateen_US
dc.subjectEncapsulationen_US
dc.subjectCoatingen_US
dc.subjectConcrete aggregateen_US
dc.titleTreatment of recycled aggregates for the production of a durable structural concreteen_US
dc.typeThesisen_US
dc.type.thesisphden_US

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Tesis Doctorado - Ingeniería Civil