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Effect of Trimming Process on Measured Shear Modulus and Phase Angle of Bituminous Binders Using Dynamic Shear Rheometer

Zhu, Jiqing ; Sheidaei, Maya LU orcid and Lundberg, Joacim LU orcid (2026) In RILEM Bookseries 74. p.141-146
Abstract

To verify the justification for an amendment of European Standard EN 14770:2023, this study investigates the effect of trimming on measured shear modulus and phase angle of bituminous binders using Dynamic Shear Rheometer (DSR). Six bituminous binders were analysed, including penetration grade neat bitumen and modified bitumen with polymer and wax. More than 400 DSR measurements (with trimming versus without trimming) were conducted at 10 rad/s at different temperatures. The comparisons between test results indicate that the effect of trimming on DSR measurements depends on the plate size used for the measurement. With the plate-plate geometry PP25 (diameter 25 mm and thickness 1 mm), whether trimming the specimen or not does not affect... (More)

To verify the justification for an amendment of European Standard EN 14770:2023, this study investigates the effect of trimming on measured shear modulus and phase angle of bituminous binders using Dynamic Shear Rheometer (DSR). Six bituminous binders were analysed, including penetration grade neat bitumen and modified bitumen with polymer and wax. More than 400 DSR measurements (with trimming versus without trimming) were conducted at 10 rad/s at different temperatures. The comparisons between test results indicate that the effect of trimming on DSR measurements depends on the plate size used for the measurement. With the plate-plate geometry PP25 (diameter 25 mm and thickness 1 mm), whether trimming the specimen or not does not affect the DSR measurement repeatability or make a difference larger than the repeatability of the standard test method. However, with the plate-plate geometry PP08 (diameter 8 mm and thickness 2 mm), the trimming process has a more significant effect, particularly on shear modulus |G*|. But the effect of trimming as a single factor does not exceed the reproducibility limits of the standard test method.

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Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Bitumen, Bituminous Binder, Dynamic Shear Rheometer, Rheological Property, Trimming
host publication
Proceedings of the 2nd RILEM International Symposium on Bituminous Materials (ISBM 2026)
series title
RILEM Bookseries
volume
74
pages
6 pages
publisher
Springer Science and Business Media B.V.
external identifiers
  • scopus:105047438484
ISSN
2211-0844
2211-0852
DOI
10.1007/978-3-032-29857-7_22
language
English
LU publication?
yes
additional info
Publisher Copyright: © The Author(s), under exclusive license to Springer Nature Switzerland AG 2026.
id
e968631f-3fa7-4925-94f2-5043b15b9241
date added to LUP
2026-08-28 15:20:06
date last changed
2026-09-11 16:12:56
@inbook{e968631f-3fa7-4925-94f2-5043b15b9241,
  abstract     = {{<p>To verify the justification for an amendment of European Standard EN 14770:2023, this study investigates the effect of trimming on measured shear modulus and phase angle of bituminous binders using Dynamic Shear Rheometer (DSR). Six bituminous binders were analysed, including penetration grade neat bitumen and modified bitumen with polymer and wax. More than 400 DSR measurements (with trimming versus without trimming) were conducted at 10 rad/s at different temperatures. The comparisons between test results indicate that the effect of trimming on DSR measurements depends on the plate size used for the measurement. With the plate-plate geometry PP25 (diameter 25 mm and thickness 1 mm), whether trimming the specimen or not does not affect the DSR measurement repeatability or make a difference larger than the repeatability of the standard test method. However, with the plate-plate geometry PP08 (diameter 8 mm and thickness 2 mm), the trimming process has a more significant effect, particularly on shear modulus |G*|. But the effect of trimming as a single factor does not exceed the reproducibility limits of the standard test method.</p>}},
  author       = {{Zhu, Jiqing and Sheidaei, Maya and Lundberg, Joacim}},
  booktitle    = {{Proceedings of the 2nd RILEM International Symposium on Bituminous Materials (ISBM 2026)}},
  issn         = {{2211-0844}},
  keywords     = {{Bitumen; Bituminous Binder; Dynamic Shear Rheometer; Rheological Property; Trimming}},
  language     = {{eng}},
  pages        = {{141--146}},
  publisher    = {{Springer Science and Business Media B.V.}},
  series       = {{RILEM Bookseries}},
  title        = {{Effect of Trimming Process on Measured Shear Modulus and Phase Angle of Bituminous Binders Using Dynamic Shear Rheometer}},
  url          = {{http://dx.doi.org/10.1007/978-3-032-29857-7_22}},
  doi          = {{10.1007/978-3-032-29857-7_22}},
  volume       = {{74}},
  year         = {{2026}},
}