Evaluation of RePLAY for Mainline, Shoulders, and Rumbles, Phase II Study: Proprietary Bio-based Fog Sealer and Rejuvenator Reapplication in Clinton County
Many state transportation and local road agencies have utilized fog seal or rejuvenator surface treatments for existing asphalt surfaced pavements to improve sealing or waterproofing, restore flexibility, prevent weather-induced deterioration, or simply improve the surface appearance. Fog seal or rejuvenator surface treatments have the added advantage of being low-cost. Considering such advantages, fog seals and rejuvenator surface treatments in Iowa roadways have increased. Recently, various proprietary bio-based fog sealers or rejuvenators have been introduced and marketed as potentially cost-effective and environmentally friendly alternatives to traditional petroleum-based sealers for preserving asphalt roads. For instance, RePLAY Agricultural Oil Seal and Preservation Agents are claimed to protect the asphalt from potholes, edge rutting, and cracking and extend paved asphalt surfaces' life. The researchers at the Iowa State University (ISU), in partnership with Clinton County and the Iowa Department of Transportation (DOT), have evaluated RePLAY performance on a 3.3-mile pilot testing section located in Clinton County for five consecutive years (i.e., Summer 2016 through Summer 2021). This study has important insights about RePLAY and its first-level field implementation in Iowa. However, further research is needed to identify the frequencies and benefits of reapplication of RePLAY and evaluate the relative and respective performances of other fog sealer and rejuvenator types. In addition, Clinton County has a plan on reapplication of RePLAY at the same project site and extending its use on other project sites. The project technical advisory committee (TAC) recommended a follow-up investigation (i.e., Phase II study) to address such research needs by utilizing the planned project sites in Clinton County. The primary objective of this Phase II study would be to evaluate and quantify the relative and respective performance and cost-effectiveness of RePLAY. The frequencies and benefits of reapplication of RePLAY would also be investigated. Such a study will help Iowa DOT, counties, and cities better understand the benefits of the reapplication of RePLAY while facilitating their decision-making in selecting cost-effective application frequency options to achieve good pavement preservation results.
Language
- English
Project
- Status: Active
- Funding: $129,988.00
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Contract Numbers:
TR-822
HR-3011
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Sponsor Organizations:
Iowa Department of Transportation
800 Lincoln Way
Ames, IA United States 50010 -
Managing Organizations:
Iowa Department of Transportation
800 Lincoln Way
Ames, IA United States 50010 -
Project Managers:
Goetz, Vanessa
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Performing Organizations:
Center for Transportation Research and Education
2711 South Loop Drive, Suite 4700
Ames, IA United States 50010-8664 -
Principal Investigators:
Ceylan, Halil
- Start Date: 20230415
- Expected Completion Date: 20280430
- Actual Completion Date: 0
Subject/Index Terms
- TRT Terms: Asphalt emulsions; Cost effectiveness; Performance tests; Rejuvenators; Surface course (Pavements)
- Geographic Terms: Clinton County (Iowa); Iowa
- Subject Areas: Highways; Maintenance and Preservation; Materials; Pavements;
Filing Info
- Accession Number: 01945609
- Record Type: Research project
- Source Agency: Iowa Department of Transportation
- Contract Numbers: TR-822, HR-3011
- Files: RIP, STATEDOT
- Created Date: Feb 12 2025 12:00PM