Utilization of Lignin as an Antioxidant in Asphalt Binder
Author(s):
Shikha D Asukar, Mrs. Ambika Behl, Prof. (Dr.) P. J. Gundaliya
Keywords:
Asphalt binder, FTIR, Lignin, Oxidation, Pavement aging, Rheological properties
Abstract
The objective of this study is to investigate the viability of utilizing lignin as an antioxidant for arresting the aging of the bituminous binder. Oxidation is the primary cause of long-term aging in asphalt pavements. As a pavement oxidizes, it stiffens and can eventually crack. The use of an antioxidant as a performance enhancer in an asphalt binder could delay aging, thus increasing the life of an asphalt pavement. Lignin is highly available and well-studied antioxidant. In the present investigation, the rheological properties were characterized for bitumen binder blended with an organic lignin, ‘Lignin 1’, and a processed lignosulphonate, ‘Lignin 2’, at different percentages (5% and 7%) by weight of the base binder. Rotational Viscometer (RV) and Dynamic Shear Rheometer (DSR) tests were conducted for the rheological properties, and the Rolling Thin-Film Oven (RTFO) test and Pressurized Aging Vessel (PAV) tests were conducted for the simulation of aging. The aging index was developed for all the blends. The rheological properties of the bituminous binder in terms of their complex modulus (G*), phase angle (δ), rutting parameter (G*/sinδ) and fatigue parameter (G*×sinδ) were measured. Furthermore, the oxidation characterization was investigated through the Fourier Transform Infrared Spectroscopy (FTIR) test. Comparison of results for the unmodified binders and lignin modified binders were done, to identify the effect on aging on addition of lignin. It was concluded that lignin showed some antioxidant activity when added to asphalt binder, which was supported by FTIR results.
Article Details
Unique Paper ID: 143626

Publication Volume & Issue: Volume 2, Issue 12

Page(s): 198 - 207
Article Preview & Download


Share This Article

Conference Alert

NCSST-2021

AICTE Sponsored National Conference on Smart Systems and Technologies

Last Date: 25th November 2021

SWEC- Management

LATEST INNOVATION’S AND FUTURE TRENDS IN MANAGEMENT

Last Date: 7th November 2021

Go To Issue



Call For Paper

Volume 8 Issue 4

Last Date 25 September 2021

About Us

IJIRT.org enables door in research by providing high quality research articles in open access market.

Send us any query related to your research on editor@ijirt.org

Social Media

Google Verified Reviews

Contact Details

Telephone:6351679790
Email: editor@ijirt.org
Website: ijirt.org

Policies