Effect of the geometrical and physical nature of filler on the rheological properties of mastics
Sheidaei, Maya LU
; Östlund, Jenny Ann
; Antunes, Vítor
and Freire, Ana Cristina
(2025)
In International Journal of Pavement Engineering
26(1).
- Abstract
This study investigates properties of mastics produced with 70/100 neat bitumen, three mineral fillers (granite, quartz-granite, and diorite), and a lime-based active filler at filler-to-bitumen (F/B) ratios of 40%, 50%, and 60%. The physical, geometrical, and mineralogical properties of the fillers were assessed. Their influence on mastics' behaviour was evaluated using conventional penetration and softening point tests, as well as frequency sweep tests at different temperatures with a dynamic shear rheometer (DSR). Although mineral components are not strongly correlated with mastic behaviour, differences in particle size distribution and rigid void (RV) properties explain the varying stiffening effects. Granite, with finer particles,... (More)
This study investigates properties of mastics produced with 70/100 neat bitumen, three mineral fillers (granite, quartz-granite, and diorite), and a lime-based active filler at filler-to-bitumen (F/B) ratios of 40%, 50%, and 60%. The physical, geometrical, and mineralogical properties of the fillers were assessed. Their influence on mastics' behaviour was evaluated using conventional penetration and softening point tests, as well as frequency sweep tests at different temperatures with a dynamic shear rheometer (DSR). Although mineral components are not strongly correlated with mastic behaviour, differences in particle size distribution and rigid void (RV) properties explain the varying stiffening effects. Granite, with finer particles, had the least rut resistance, while diorite, with coarser particles, had the greatest resistance at F/B values of 40% and 60%. Quartz-granite exhibited the highest F/B ratio dependency and strongest interaction with bitumen at 50% F/B at lower temperatures, highlighting the importance of selecting the appropriate filler proportion over the filler type when the features are similar. The study underscores necessity of using DSR to assess mastics with diverse fillers across various conditions. Therefore, two equations to estimate the complex modulus |G*| from standardised softening point test and RV normalised with F/B ratio are proposed, which require further research.
(Less)
- author
- Sheidaei, Maya
LU
; Östlund, Jenny Ann
; Antunes, Vítor
and Freire, Ana Cristina
- organization
- publishing date
- 2025
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Bitumen, complex shear modulus, dynamic shear rheometer, fillermastic rheology, softening temperature
- in
- International Journal of Pavement Engineering
- volume
- 26
- issue
- 1
- article number
- 2582712
- publisher
- Taylor & Francis
- external identifiers
-
- scopus:105021402124
- ISSN
- 1029-8436
- DOI
- 10.1080/10298436.2025.2582712
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © 2025 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.
- id
- d6653f45-f454-429c-b732-603bfde64067
- date added to LUP
- 2025-12-19 13:41:58
- date last changed
- 2025-12-19 13:42:49
@article{d6653f45-f454-429c-b732-603bfde64067,
abstract = {{<p>This study investigates properties of mastics produced with 70/100 neat bitumen, three mineral fillers (granite, quartz-granite, and diorite), and a lime-based active filler at filler-to-bitumen (F/B) ratios of 40%, 50%, and 60%. The physical, geometrical, and mineralogical properties of the fillers were assessed. Their influence on mastics' behaviour was evaluated using conventional penetration and softening point tests, as well as frequency sweep tests at different temperatures with a dynamic shear rheometer (DSR). Although mineral components are not strongly correlated with mastic behaviour, differences in particle size distribution and rigid void (RV) properties explain the varying stiffening effects. Granite, with finer particles, had the least rut resistance, while diorite, with coarser particles, had the greatest resistance at F/B values of 40% and 60%. Quartz-granite exhibited the highest F/B ratio dependency and strongest interaction with bitumen at 50% F/B at lower temperatures, highlighting the importance of selecting the appropriate filler proportion over the filler type when the features are similar. The study underscores necessity of using DSR to assess mastics with diverse fillers across various conditions. Therefore, two equations to estimate the complex modulus |G*| from standardised softening point test and RV normalised with F/B ratio are proposed, which require further research.</p>}},
author = {{Sheidaei, Maya and Östlund, Jenny Ann and Antunes, Vítor and Freire, Ana Cristina}},
issn = {{1029-8436}},
keywords = {{Bitumen; complex shear modulus; dynamic shear rheometer; fillermastic rheology; softening temperature}},
language = {{eng}},
number = {{1}},
publisher = {{Taylor & Francis}},
series = {{International Journal of Pavement Engineering}},
title = {{Effect of the geometrical and physical nature of filler on the rheological properties of mastics}},
url = {{http://dx.doi.org/10.1080/10298436.2025.2582712}},
doi = {{10.1080/10298436.2025.2582712}},
volume = {{26}},
year = {{2025}},
}