UTC 2022 Funding - Cycle 1 Research Projects

Project No.: CY1-LSU-UARK-02
Title: Next-Generation Permeable Pavement for Enhanced Durability and Functionality
Performing Institution: Louisiana State University and University of Arkansas
Principal Investigators: Mostafa A. Elseifi, Louisiana State University; Kofi S.S. Christie, Louisiana State University; Haitao Liao, University of Arkansas
Start and Anticipated Completion Dates: 10/1/2023-9/30/2024
Project Description: The South-Central region of the United States, which is characterized by heavy rainfall conditions and shallow groundwater table, may significantly benefit from the widescale implementation of porous asphalt, especially if similar performance to regular dense-graded asphalt mixtures can be achieved. Yet, there have been some difficulties using porous asphalt as a wearing surface course, largely because of its lower durability when compared to dense-graded asphalt mixtures. The most critical shortcomings of permeable pavement include premature durability problems (raveling and stripping), and clogging of voids by dirt, which result in shorter service life and higher costs.

The goal of this study is to enhance the use of a next-generation permeable pavement in Region 6 by optimizing its mechanical, operational, and environmental characteristics. To this end, the objectives of this study are: (1) Evaluate the failure mechanisms (e.g., cohesive and adhesive mechanisms) in Open-Graded Friction Course (OGFC) mixes and the contribution of modification and additives to the mixture durability; (2) Evaluate the effects of Reclaimed Asphalt Pavement (RAP) on open graded friction course (OGFC) mixture performance and durability; (3) Analyze and quantify bio-remediation processes that may be used to hold and degrade oil and pollutant contaminants into less harmful forms through microbial degradation; (4) Evaluate production, cost, and constructability of OGFC mixes; and (5) Develop an interactive computer tool to facilitate the design of cost-effective and durable OGFC mixes.
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