Research on Short-term Aging of Lignin Modified Asphalt

Research on Short-term Aging of Lignin Modified Asphalt

In order to study the micro-aging mechanism of lignin-modified asphalt, different asphalt samples were prepared with lignin content of 0% and 12% by mass. The conventional asphalt index test and high-temperature dynamic shear rheological test were used to analyze the different asphalt samples. The c...

Full description

Bibliographic Details
Main Authors: Fu Xin, He Mao, Liu Yuancai
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/09/e3sconf_iaecst20_01125.pdf
id doaj-07a06527b71c4cd3b5d907ab5e984129
record_format Article
spelling doaj-07a06527b71c4cd3b5d907ab5e9841292021-02-01T08:06:08ZengEDP SciencesE3S Web of Conferences2267-12422021-01-012330112510.1051/e3sconf/202123301125e3sconf_iaecst20_01125Research on Short-term Aging of Lignin Modified AsphaltFu Xin0He Mao1Liu Yuancai2College of Civil Engineering, Southwest Forestry University, KunmingCollege of Civil Engineering, Southwest Forestry University, KunmingCollege of Civil Engineering, Southwest Forestry University, KunmingIn order to study the micro-aging mechanism of lignin-modified asphalt, different asphalt samples were prepared with lignin content of 0% and 12% by mass. The conventional asphalt index test and high-temperature dynamic shear rheological test were used to analyze the different asphalt samples. The change law of the performance of modified lignin modified asphalt with thermal oxygen aging time. The results show that adding appropriate amount of lignin to each asphalt will increase the penetration and ductility of the base asphalt, reduce the softening point, and significantly improve the high-temperature stability; comparative analysis before and after DSR aging, the complex shear modulus G* increases and The decrease of phase angle δ indicates that lignin can improve the high-temperature rheological properties of asphalt.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/09/e3sconf_iaecst20_01125.pdf
collection DOAJ
language English
format Article
sources DOAJ
author Fu Xin
He Mao
Liu Yuancai
spellingShingle Fu Xin
He Mao
Liu Yuancai
Research on Short-term Aging of Lignin Modified Asphalt
E3S Web of Conferences
author_facet Fu Xin
He Mao
Liu Yuancai
author_sort Fu Xin
title Research on Short-term Aging of Lignin Modified Asphalt
title_short Research on Short-term Aging of Lignin Modified Asphalt
title_full Research on Short-term Aging of Lignin Modified Asphalt
title_fullStr Research on Short-term Aging of Lignin Modified Asphalt
title_full_unstemmed Research on Short-term Aging of Lignin Modified Asphalt
title_sort research on short-term aging of lignin modified asphalt
publisher EDP Sciences
series E3S Web of Conferences
issn 2267-1242
publishDate 2021-01-01
description In order to study the micro-aging mechanism of lignin-modified asphalt, different asphalt samples were prepared with lignin content of 0% and 12% by mass. The conventional asphalt index test and high-temperature dynamic shear rheological test were used to analyze the different asphalt samples. The change law of the performance of modified lignin modified asphalt with thermal oxygen aging time. The results show that adding appropriate amount of lignin to each asphalt will increase the penetration and ductility of the base asphalt, reduce the softening point, and significantly improve the high-temperature stability; comparative analysis before and after DSR aging, the complex shear modulus G* increases and The decrease of phase angle δ indicates that lignin can improve the high-temperature rheological properties of asphalt.
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/09/e3sconf_iaecst20_01125.pdf
work_keys_str_mv AT fuxin researchonshorttermagingofligninmodifiedasphalt
AT hemao researchonshorttermagingofligninmodifiedasphalt
AT liuyuancai researchonshorttermagingofligninmodifiedasphalt
_version_ 1724315614486462464

Similar Items