Residual mechanical properties and durability of high-strength concrete with polypropylene fibers in high temperatures

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dc.creatorHeron Freitas Resende
dc.creatorAndré Luis Christoforo
dc.creatorLuiz Antônio Melgaço Nunes Branco
dc.creatorElvys Dias Reis
dc.creatorFelipe Nascimento Arroyo
dc.creatorMatheus Henrique Morato de Moraes
dc.creatorHerisson Ferreira dos Santos
dc.creatorEnio Gomes da Silva
dc.creatorFrancisco Antonio Rocco Lahr
dc.creatorEduardo Chahud
dc.creatorTulio Hallak Panzera
dc.date.accessioned2023-11-09T21:48:07Z
dc.date.accessioned2025-09-09T00:32:23Z
dc.date.available2023-11-09T21:48:07Z
dc.date.issued2022-07-05
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipOutra Agência
dc.format.mimetypepdf
dc.identifier.doihttps://doi.org/10.3390/ma15134711
dc.identifier.issn1996-1944
dc.identifier.urihttps://hdl.handle.net/1843/60751
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofMaterials
dc.rightsAcesso Aberto
dc.subjectConcreto
dc.subjectFibras sinteticas
dc.subjectConcreto de alta resistencia
dc.subject.otherCementitious materials
dc.subject.otherSynthetic fibers
dc.subject.otherHigh temperatures
dc.subject.otherResidual properties
dc.subject.otherRegression models
dc.titleResidual mechanical properties and durability of high-strength concrete with polypropylene fibers in high temperatures
dc.typeArtigo de periódico
local.citation.epage24
local.citation.issue13
local.citation.spage1
local.citation.volume15
local.description.resumoInvestigations into the fire resistance of high-strength concrete (HSC) is extremely important to optimize structural design in construction engineering. This work describes the influence of polypropylene fibers on the mechanical properties and durability of HSC at high temperatures (25, 100, 200, 400, 600 and 800 ◦C). HSC specimens with 2 kg/m3 composed of polypropylene fibers are tested in a temperature range of 25 to 800 ◦C, followed by microstructural analysis. In addition, a statistical analysis is designed to identify the effect of factors, namely temperature and polypropylene fibers, and their interactions on mechanical properties and water absorption, electrical resistivity, mass loss and ultrasonic velocity. Most of the properties are improved by the incorporation of fibers, obtaining highly predictable regression models. However, the polypropylene fibers reduce compressive strength but improve the residual mechanical properties up to 400 ◦C.
local.identifier.orcidhttps://orcid.org/0000-0003-3168-7055
local.publisher.countryBrasil
local.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA MATERIAIS E DA CONSTRUÇÃO CIVIL
local.publisher.initialsUFMG
local.url.externahttps://www.mdpi.com/1996-1944/15/13/4711

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