Journal article
Effect of low dosage crumbed rubber on the mechanical properties of a dense graded asphalt mixture
Road Materials and Pavement Design, Vol.24(10), pp.2464-2482
2023
Abstract
The benefits of crumb rubber modification of bituminous binder for asphalt mixture production is well established. Although most research has used high (20-30% by mass of the bitumen) crumb rubber dosages, there is now interest in low (5-15%) dosages for use in local road surfacing, where mechanical properties are less important. This paper quantifies the effects of low-dosage crumb rubber on the mechanical properties of a typical dense graded local road surface mixture. It was concluded that 5-10% crumb rubber dosage significantly increased the deformation (rutting) resistance and crack (fatigue) resistance of the asphalt. The effect of crumb rubber on mixture stiffness (modulus), moisture damage (stripping) resistance and workability (compactability) was mixed but was unlikely to present any practically important benefit or detriment. Consequently, 5-10% was concluded to be the preferred range of crumb rubber dosage for dense graded asphalt for local road surfacing.
Details
- Title
- Effect of low dosage crumbed rubber on the mechanical properties of a dense graded asphalt mixture
- Authors
- G. White (Corresponding Author) - University of the Sunshine Coast, Queensland, School of Science, Technology and EngineeringA. Kidd (Author) - University of the Sunshine Coast, Queensland, School of Science, Technology and EngineeringT. Shadforth (Author) - University of the Sunshine Coast, Queensland, School of Science, Technology and Engineering
- Publication details
- Road Materials and Pavement Design, Vol.24(10), pp.2464-2482
- Publisher
- Taylor & Francis
- DOI
- 10.1080/14680629.2022.2150274
- ISSN
- 2164-7402
- Organisation Unit
- School of Science, Technology and Engineering
- Language
- English
- Record Identifier
- 99696656802621
- Output Type
- Journal article
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- Construction & Building Technology
- Engineering, Civil
- Materials Science, Multidisciplinary
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Source: InCites