Effect of Various Dynamic Shear Rheometer Testing Methods on the Measured Rheological Properties of Bitumen
Sheidaei, Maya LU
; Gudmarsson, Anders
and Langfjell, Michael
(2023)
In Materials
16(7).
- Abstract
A 23 factorial design experiment was conducted to study the influence of pre-heating temperature (HT) for manufacturing sample, bonding temperature (BT) onto rheometer, and trimming state (Trim) of the sample on complex shear modulus (G*) and phase angle (δ) using a dynamic shear rheometer on unmodified bitumen of types 50/70, 70/100, and two 160/220 from various sources. In addition, the black diagram and 2S2P1D model were used to evaluate the viscoelastic properties of bitumens. Findings show that the G* is more sensitive to the changes than the δ. Additionally, it was found that the 8 mm parallel plate diameter had a higher sensitivity to the trimming state than the 25 mm. The tested factor HT generally did not have a... (More)
A 23 factorial design experiment was conducted to study the influence of pre-heating temperature (HT) for manufacturing sample, bonding temperature (BT) onto rheometer, and trimming state (Trim) of the sample on complex shear modulus (G*) and phase angle (δ) using a dynamic shear rheometer on unmodified bitumen of types 50/70, 70/100, and two 160/220 from various sources. In addition, the black diagram and 2S2P1D model were used to evaluate the viscoelastic properties of bitumens. Findings show that the G* is more sensitive to the changes than the δ. Additionally, it was found that the 8 mm parallel plate diameter had a higher sensitivity to the trimming state than the 25 mm. The tested factor HT generally did not have a statistically significant impact on the results of the tested materials, except for 160/220_I. At practically all the temperatures tested for 50/70 and 160/220_II, the G* dropped by increasing the factor BT from a lower to a higher value. The Trim:BT interaction has the greatest impact on all materials and temperatures on G*, except for 160/220 at lower temperatures. However, in the case of δ, the Trim:BT interaction has the most significant effects for 70/100 and 160/220_II. The black diagrams show no discernible differences, which may be a result of the limited range of changes made to the variables.
(Less)
- author
- Sheidaei, Maya
LU
; Gudmarsson, Anders
and Langfjell, Michael
- organization
- publishing date
- 2023
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- bitumen, bonding temperature, complex shear modulus, dynamic shear rheometer (DSR), heating temperature, phase angle, rheology, sample preparation, trim
- in
- Materials
- volume
- 16
- issue
- 7
- article number
- 2745
- publisher
- MDPI AG
- external identifiers
-
- pmid:37049038
- scopus:85152654599
- ISSN
- 1996-1944
- DOI
- 10.3390/ma16072745
- language
- English
- LU publication?
- yes
- id
- a7dca53d-da02-4289-ae0c-0dc607759a00
- date added to LUP
- 2023-07-13 10:52:02
- date last changed
- 2024-06-15 04:30:12
@article{a7dca53d-da02-4289-ae0c-0dc607759a00,
abstract = {{<p>A 2<sup>3</sup> factorial design experiment was conducted to study the influence of pre-heating temperature (HT) for manufacturing sample, bonding temperature (BT) onto rheometer, and trimming state (Trim) of the sample on complex shear modulus (G*) and phase angle (δ) using a dynamic shear rheometer on unmodified bitumen of types 50/70, 70/100, and two 160/220 from various sources. In addition, the black diagram and 2S2P1D model were used to evaluate the viscoelastic properties of bitumens. Findings show that the G* is more sensitive to the changes than the δ. Additionally, it was found that the 8 mm parallel plate diameter had a higher sensitivity to the trimming state than the 25 mm. The tested factor HT generally did not have a statistically significant impact on the results of the tested materials, except for 160/220_I. At practically all the temperatures tested for 50/70 and 160/220_II, the G* dropped by increasing the factor BT from a lower to a higher value. The Trim:BT interaction has the greatest impact on all materials and temperatures on G*, except for 160/220 at lower temperatures. However, in the case of δ, the Trim:BT interaction has the most significant effects for 70/100 and 160/220_II. The black diagrams show no discernible differences, which may be a result of the limited range of changes made to the variables.</p>}},
author = {{Sheidaei, Maya and Gudmarsson, Anders and Langfjell, Michael}},
issn = {{1996-1944}},
keywords = {{bitumen; bonding temperature; complex shear modulus; dynamic shear rheometer (DSR); heating temperature; phase angle; rheology; sample preparation; trim}},
language = {{eng}},
number = {{7}},
publisher = {{MDPI AG}},
series = {{Materials}},
title = {{Effect of Various Dynamic Shear Rheometer Testing Methods on the Measured Rheological Properties of Bitumen}},
url = {{http://dx.doi.org/10.3390/ma16072745}},
doi = {{10.3390/ma16072745}},
volume = {{16}},
year = {{2023}},
}