Novel concentration master curve and rheological characterization of recycled asphalt binders

The recycling of asphalt pavements requires a good understanding of the material’s characteristics. However, the rheological behavior of recycled binder is still not well understood. In this study, a novel method is introduced to construct the master curve of the recycled binders. The concentration...

Full description

Saved in:
Bibliographic Details
Published in:Environmental science and pollution research international 2022-10, Vol.29 (48), p.72568-72585
Main Authors: Sharma, Ankit, Naga, Gondaimei Ransinchung Rongmei, Kumar, Praveen
Format: Article
Language:English
Subjects:
Aquatic Pollution
Asphalt
Asphalt pavements
Atmospheric Protection/Air Quality Control/Air Pollution
Binders
Binders (materials)
bitumen
Compatibility
Damping
Earth and Environmental Science
Ecotoxicology
energy
Environment
Environmental Chemistry
Environmental Health
Environmental science
India
pavements
Research Article
Rheological properties
Rheology
Temperature
Waste Water Technology
Water Management
Water Pollution Control
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The recycling of asphalt pavements requires a good understanding of the material’s characteristics. However, the rheological behavior of recycled binder is still not well understood. In this study, a novel method is introduced to construct the master curve of the recycled binders. The concentration of reclaimed asphalt pavement (RAP) binder is used to find the shift factors of the master curve. This master curve is called the concentration master curve (CMC). To verify the applicability of the concept, the CMC was plotted for three different RAP sources procured from two states and the capital of India. The percentage of RAP binder content in the recycled binders was varied (0, 15, 25, 40, 65, 80, and 100%) by weight of the total binder. In all three cases, smooth master curves were obtained. To calculate the allowable RAP, an alternative approach based on the damping energy area (DEA) of recycled binders was proposed. It was found that the allowable RAP content based on the DEA criteria was 40–50% less compared to the conventional high PG temperature (PGH) criterion. An attempt is made to understand the rheological interaction between the RAP binder and RA using the recycled binder compatibility index (RBCI). It was observed that the RAP source is the determining factor behind the compatibility and interaction level between the RAP binder and RA in a recycled binder.
ISSN:0944-1344
1614-7499
DOI:10.1007/s11356-022-20478-6