2020
DOI: 10.14295/transportes.v28i2.1907
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Fatigue behavior study of a dense graded HMA using the four point bending beam test aided by an in-situ instrumentation at BR-116/RS, Brazil

Abstract: A fadiga é caracterizada pela deterioração estrutural de um material quando submetido a repetidos esforços de tensão-deformação. O ensaio laboratorial comumente empregado no Brasil para análise de fadiga em misturas asfálticas é o ensaio de tração indireta (IDT). Como alternativa ao ensaio IDT, o ensaio de flexão em quatro pontos (4PBBT) submete o material a um estado de tensões mais realístico em relação ao campo. Este trabalho avaliou o comportamento à fadiga de uma mistura asfáltica com ligante modificado p… Show more

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“…The fatigue life of asphalt concrete was (141.8 and 6.1) folds higher for specimens practicing 250 and 400 constant strain levels respectively as compared with the specimen practicing 750 constant strain level. Such behavior agrees with Poulikakos and Hofko, (2020) and Colpo et al, (2020).…”
Section: Influence Of Constant Microstrain Levels On the % Initial St...supporting
confidence: 91%
“…The fatigue life of asphalt concrete was (141.8 and 6.1) folds higher for specimens practicing 250 and 400 constant strain levels respectively as compared with the specimen practicing 750 constant strain level. Such behavior agrees with Poulikakos and Hofko, (2020) and Colpo et al, (2020).…”
Section: Influence Of Constant Microstrain Levels On the % Initial St...supporting
confidence: 91%