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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Susceptibility of Asphalt Binders to Rutting: Literature Review

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Autor(es):
Domingos, M. D. I. [1] ; Faxina, A. L. [1]
Número total de Autores: 2
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Sao Carlos Sch Engn, Dept Transportat Engn, Ave Trabalhador Sao Carlense 400, Parque Arnold Sc, BR-13566590 Sao Carlos, SP - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF MATERIALS IN CIVIL ENGINEERING; v. 28, n. 2 FEB 2016.
Citações Web of Science: 10
Resumo

This paper presents a literature review covering the most used parameters and rheological properties for the characterization of the rutting resistance of asphalt cements (AC), or binders. They include the original Superpave parameter G{*}/sin delta and the nonrecoverable compliance J(nr) obtained in the multiple stress creep and recovery (MSCR) test. To draw typical examples of the differences between the rutting performances of binders as a function of the specification criterion, a 50/70-penetration grade AC was modified with crumb rubber (AC + rubber), low-density polyethylene (PE), and linear styrene-butadiene-styrene copolymer (SBS) such that the high PG grade is the same (76-xx) for all the formulations. The rankings of binders from the less to the most susceptible material to rutting showed some similarities for the selected parameters. However, the MSCR test was able to underline marked differences in the rheological responses of the formulations that could not be directly observed for the other procedures, as well as the stress sensitivity of the AC + rubber. Thus, the MSCR test was recommended as the best protocol for analyzing the rutting potential of binders. (c) 2015 American Society of Civil Engineers. (AU)

Processo FAPESP: 06/55835-6 - Caracterização e modelagem de propriedades reológicas de ligantes, de mástiques e de misturas asfálticas
Beneficiário:Adalberto Leandro Faxina
Linha de fomento: Auxílio à Pesquisa - Apoio a Jovens Pesquisadores
Processo FAPESP: 13/20483-6 - Efeitos de Diferentes Tempos de Fluência e Recuperação nas Propriedades Reológicas de Ligantes Asfálticos Modificados
Beneficiário:Matheus David Inocente Domingos
Linha de fomento: Bolsas no Brasil - Doutorado