Journal
INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING
Volume 23, Issue 3, Pages 877-887Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/10298436.2020.1776868
Keywords
Crumb rubber bitumen; rheology; fatigue; rutting; cryogenic stresses; DSR
Categories
Funding
- Deutsche Forschungsgemeinschaft [WE 1642/1-2, LE 3649/1-2 (FOR 2089)]
- Technische Universitat Dresden under the Scholarship Program for the Promotion of Early-Career Female Scientists of TU Dresden
Ask authors/readers for more resources
This research used Dynamic Shear Rheometer and Single Stress Creep Recovery tests to assess the impact of crumb rubber on bitumen performance. The results suggest that adding crumb rubber can improve the rheological, low temperature, permanent deformation, and fatigue properties of bitumen.
In recent years, crumb rubber (CR) has become an attractive option to modify bitumen. In this research, a set of Dynamic Shear Rheometer (DSR) tests were used were used to gauge the effect of two types of CR on different rheological and mechanical properties of CR bitumen (CRB). To achieve this goal, temperature and frequency sweep tests were conducted on three CRB and one penetration 50/70 reference bitumen, and Single Stress Creep Recovery (SSCR) tests were used to quantify the susceptibility of the bitumen to permanent deformation. Moreover, a new specialised cryogenic test and a recently developed fatigue test conducted on prismatic and cylindrical column bitumen samples, respectively, were implemented using the rheometer, and used to assess the low-temperature cracking and fatigue behaviour of the materials. The results indicate that the improvement in all performance-related properties by adding CR into bitumen can be evaluated by using one single device. A performance diagram developed by the authors was used to visualise and compare the effects of adding CR to the bitumen in regards to their rheological, low temperature, permanent deformation and fatigue performance properties.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available