Evaluation of RePLAY for Mainline, Shoulders, and Rumbles, Phase II Study: Pilot Study of Evaluating Proprietary Bio-based Fog Sealers and Rejuvenators in Clinton County

Project Details
STATUS

In-Progress

PROJECT NUMBER

23-845, TR-822

START DATE

04/15/23

END DATE

04/30/28

FOCUS AREAS

Infrastructure

RESEARCH CENTERS InTrans, PROSPER
SPONSORS

Iowa Department of Transportation
Iowa Highway Research Board

Researchers
Principal Investigator
Halil Ceylan

Director, PROSPER

Co-Principal Investigator
Sunghwan Kim

Associate Director, PROSPER

Co-Principal Investigator
Bo Yang

About the research

In recent years, various proprietary biobased fog sealers or rejuvenators have been introduced and marketed as potentially costeffective and environmentally friendly alternatives to traditional petroleumbased sealers for preserving asphalt roads. The RePLAY Agricultural Oil Seal and Preservation Agent, as one such biobased fog sealer, and its performance, has been evaluated on a 3.3mile pilot testing section located in Clinton County, Iowa, for five consecutive years (i.e., summer 2016 through summer 2021). This study has important insights about RePLAY and its firstlevel field implementation in Iowa. However, further research is needed to identify the frequencies and benefits of the reapplication of RePLAY and further evaluate and validate its cost effectiveness. In addition, Clinton County has interested in evaluating the reapplication of RePLAY at the same project site for extending its use on other project sites. This research will be performed in response to such a research need and interest and will be achieved through the execution of the following primary tasks: (1) developing and executing a detailed field experimental plan, (2) evaluating and validating cost effectiveness, (3) executing subsequent technology transfer and information dissemination activities and developing implementation plans with recommendations, and (4) publishing final research project documents.

This research project will be highly helpful to the Iowa Department of Transportation and Iowa counties in better understanding the benefits of the reapplication of RePLAY while facilitating their decision making in selecting costeffective application frequency options.

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