Evaluation of the effect of bio-oil on the high-temperature performance of rubber modified asphalt

Yong Lei, Hainian Wang, Ellie H. Fini, Zhanping You, Xu Yang, Junfeng Gao, Shi Dong, Guan Jiang

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The reuse of waste tire and biomass is important to environmental protection. The main objective of this study is to investigate the effect of bio-oil on the high-temperature performance of crumb rubber modified asphalt. Two types of crumb rubber powder produced from waste tire, 80-mesh and 20-mesh, were used to prepare the crumb rubber modified asphalt. Four weight ratios of bio-oil to rubber asphalt, 0%, 5%, 10%, and 15%, were chosen to prepare the composite modified asphalt binder in this study. Temperature sweep test and multiple stress creep recovery (MSCR) test were conducted to evaluate the high-temperature of the composite modified asphalt. The results showed that the viscosities of asphalts modified by 20-mesh crumb rubber were greater than that modified by 80-mesh ones. With the addition of bio-oil into crumb rubber asphalt, the viscosities of the composite modified asphalts first increased then decreased. Bio-oil can enhance the high-temperature performance of crumb rubber modified asphalt due to the physical and chemical interactions in a heated asphalt. The short-term aging process may improve the degree of blending between crumb rubber and bio-oil in the heated asphalt dispersion system and enhance the elastic property of crumb rubber modified asphalt.

Original languageEnglish (US)
Pages (from-to)692-701
Number of pages10
JournalConstruction and Building Materials
Volume191
DOIs
StatePublished - Dec 10 2018
Externally publishedYes

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asphalt
Rubber
Asphalt
Oils
Temperature
Tires
Composite materials

Keywords

  • Bio-oil
  • High-temperature performance
  • MSCR
  • Rubber modified asphalt
  • Temperature sweep

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

Cite this

Evaluation of the effect of bio-oil on the high-temperature performance of rubber modified asphalt. / Lei, Yong; Wang, Hainian; Fini, Ellie H.; You, Zhanping; Yang, Xu; Gao, Junfeng; Dong, Shi; Jiang, Guan.

In: Construction and Building Materials, Vol. 191, 10.12.2018, p. 692-701.

Research output: Contribution to journalArticle

Lei, Yong ; Wang, Hainian ; Fini, Ellie H. ; You, Zhanping ; Yang, Xu ; Gao, Junfeng ; Dong, Shi ; Jiang, Guan. / Evaluation of the effect of bio-oil on the high-temperature performance of rubber modified asphalt. In: Construction and Building Materials. 2018 ; Vol. 191. pp. 692-701.
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