About this Event
Abstract
Porous asphalt concrete also known as Open-Graded Friction Course (OGFC), is a special type of asphalt mix having a high air void content and that offers numerous benefits over traditional pavement surfaces. However, OGFC often suffers from premature durability issues such as raveling and stripping as well as clogging of the voids with dirt and debris. The objective of this research focuses on identifying the failure mechanisms of OGFC and explores innovative methods to improve its durability and cost-effectiveness. Six OGFC mixes were tested, including a control mix with PG 76-22 binder. Three of the modified mixes used steel slag, recycled waste plastic, and reclaimed asphalt pavement (RAP) as partial replacements for the aggregate in the control mix. Additionally, one mix replaced the PG 76-22 binder with highly modified asphalt (HiMA) and another included hydrated lime slurry as a modification. These mixes were evaluated for key performance indicators including permeability, resistance to cracking, moisture damage, rutting, and raveling. Binder bonding strength tests were also conducted to assess adhesive strength of the different modifications. Based on the results of this study, an artificial intelligence (AI)-based design tool was developed, which that may be used by mix designers and contractors to predict the performance of OGFC mixtures without the need for extensive laboratory testing.
Bio
Dr. Mostafa Elseifi serves as the Occidental Chemical Corporation Distinguished Professor in the Department of Civil and Environmental Engineering at Louisiana State University (LSU). He began his tenure-track position at LSU as an Assistant Professor in August 2007 and is a licensed Professional Engineer in the State of Virginia. Dr. Elseifi has over 25 years of experience in academia and industry, with expertise in pavement analysis and evaluation, asphalt mixture characterization, and pavement design and modeling. He has an extensive publication record, contributing to more than 300 presentations and publications, including 118 peer-reviewed journal articles. During his tenure at LSU, he has successfully managed 30 research projects with a total funding of $8.8 million, serving as the Principal Investigator (PI) on 24 of those projects.
Event Venue
Online
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