Evaluation of pozzolanic activity and environmental assessment of cement composites with lubricating oil re-refining ash

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUNOESTE-
Autor(es): dc.contributorUCO-Ed. Leonardo da Vinci-
Autor(es): dc.creatorRamos da Silva, Alex-
Autor(es): dc.creatorFriol Guedes de Paiva, Fábio-
Autor(es): dc.creatorHenrique Pereira Silva, Lucas-
Autor(es): dc.creatorFernando dos Santos, Luis-
Autor(es): dc.creatorRoefero Tolosa, Gabrieli-
Autor(es): dc.creatorEloizo Job, Aldo-
Autor(es): dc.creatorPérez Galvín, Adela-
Autor(es): dc.creatorLópez-Uceda, Antonio-
Autor(es): dc.creatorRainho Teixeira, Silvio-
Autor(es): dc.creatorKinoshita, Angela-
Autor(es): dc.creatorJosé dos Santos, Renivaldo-
Data de aceite: dc.date.accessioned2025-08-21T20:31:11Z-
Data de disponibilização: dc.date.available2025-08-21T20:31:11Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-05-02-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.conbuildmat.2023.130980-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/247022-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/247022-
Descrição: dc.descriptionLubricant oil is considered a hazardous waste, and its disposal in the environment represents a high risk of damage to ecosystems. The purpose of this work is to study the feasibility of using lubricating oil re-refining ash (LORR) as a pozzolanic material in mortar composites with 0–40% of cement replaced by LORR, and determining the optimal content. Systematic experiments were performed to investigate the effects of LORR on the cementitious material properties, including workability, mechanical and flexural strength and water absorption. Furthermore, the hydration of the cement pastes was analyzed using thermogravimetric analysis (TGA) and X-ray diffraction (XRD). The results showed that LORR has high pozzolanic reactivity, increasing portlandite consumption, contributing to the additional formation of calcium silicate hydrate gel. Up to 30% LORR replacement resulted in similar mechanical properties to the control mortar. The leaching test showed that the raw LORR release 9 hazardous substances, including 6 heavy metals. The mortar proved to be effective for encapsulating all substances studied, in addition to contributing to the reduction of hazardous waste deposition in industrial landfills, and reducing the cost (less than24%) and embodied energy (less than29%) of eco-friendly cementitious materials. Therefore, the potential of lubricating oil re-refining ash for application in civil construction was demonstrated.-
Descrição: dc.descriptionSão Paulo State University UNESP, SP-
Descrição: dc.descriptionUniversity of Western São Paulo UNOESTE, SP-
Descrição: dc.descriptionConstruction Engineering Universidad de Córdoba UCO-Ed. Leonardo da Vinci, Campus of Rabanales-
Descrição: dc.descriptionSão Paulo State University UNESP, SP-
Idioma: dc.languageen-
Relação: dc.relationConstruction and Building Materials-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectCompressive strength-
Palavras-chave: dc.subjectEco-efficiency-
Palavras-chave: dc.subjectEnvironmental assessment-
Palavras-chave: dc.subjectLubricating oil-
Palavras-chave: dc.subjectPozzolanic activity-
Título: dc.titleEvaluation of pozzolanic activity and environmental assessment of cement composites with lubricating oil re-refining ash-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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