Nurul Aswad
Universitas Lancang Kuning
Shanti Wahyuni Megasari
Universitas Lancang Kuning
Alfian Saleh
Universitas Lancang Kuning
DOI: -
Keywords: Marshall, Lignin, Asphalt, AC-WC, Filler Substitution
ABSTRACT
Lignin is a cellulose substance contained in soft woody plants and can be used as dispersing and stabilizing agent in asphalt extenders, dyes and concrete. The widespread presence of lignin suggest its viability as a renewable energy alternative. The research is intended to investigate the marshall characteristics of asphalt concrete mixtures. An experiemntal laboratory approach was adopted in accordance with Bina Marga 2018 Revision II (2020) guidelines. The research used variations in lignin substitution of 0%, 25%, 50%, 75% and 100% for filler weight. The research results showed that every 25% lignin substitution in the asphalt concrete mixture tended to increase the VIM and VMA parameters. For the stability parameters, flow, MQ and density tend to decrease with lignin substitution, but the results obtained still meet the 2018 Bina Marga Revision II 2020 requirements. In the VFWA and VITM parameters there are no variations that meet the requirements. Based on the findings, lignin is not advisable to be used as a filler substitute in asphalt concrete.
