Enhancing Durability and Sustainability of Pavement Through Full Depth Reclamation and Stabilization Using Novel Materials
The objectives of this project are: (1) To compare the benefits of Full Depth Reclamation (FDR) mixes with a conventional asphalt emulsion, foamed asphalt, and High Yield Emulsion (HYE), through laboratory testing, analysis of data, and evaluate the durability of optimized HYE mix with accelerated loading and testing; (2) To evaluate the use of recycled concrete aggregate fines (fRCA) as a co-additive with cement stabilizer to treat problematic subgrade soils such as expansive soils through engineering, mineralogical, and chemical testing and embodied carbon analysis. The following tasks will be pursued by the TAMU team: (1) Collect problematic soil; (2) Procure and characterize fines from recycled concrete aggregate (RCA); (3) Determine optimum dosages of stabilizers and co-additives; (4) Compare performance (untreated and treated soils containing fRCA); (5) Analyze mineralogical and chemical components; (6) Compare benefits; (7) Compare treatment alternatives. The UTEP tasks will include: (1) Collect asphalt and other materials from FDR projects; (2) Develop mix designs with different binders; (3) Collect and analyze FDR projects and binder production data; (4) Test the optimized mix for durability; (5) Analyze data and make recommendations . The results from this research will lead to a better understanding of durability aspects of novel materials, consisting of FDR binders for base and RCA fines for subgrade stabilization. The observations from experiments will be translated to pavement performance under different environmental conditions, such as temperature and precipitation. The data could be utilized for the modeling and performance prediction of recycled/subgrade-treated pavements. The results will lead to the implementation of innovative technology, savings in life cycle/life cycle cost, rehabilitation of a greater mileage of roads, and enhanced road safety. Implementation will include new specifications for FDR and the treatment of subgrade soils. The draft specifications and framework will be prepared for possible inclusion in state or federal specifications, as part of the deliverables. Descriptions of any impediments to the implementation of the specifications/framework and further work, if needed, will also be provided. The envisioned benefits will be in terms of reduced material usage and reduced life cycle costs, which will be quantified from life cycle cost analysis, using the appropriate framework.
Language
- English
Project
- Status: Active
- Funding: $ 205,022
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Contract Numbers:
69A3552348306
CY1-TAMU-UTEP-01
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Sponsor Organizations:
Office of the Assistant Secretary for Research and Technology
University Transportation Centers Program
Department of Transportation
Washington, DC United States 20590 -
Managing Organizations:
Southern Plains Transportation Center
University of Oklahoma
202 W Boyd St, Room 213A
Norman, OK United States 73019 -
Project Managers:
Dunn, Denise
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Performing Organizations:
Texas A&M University, College Station
Zachry Department of Civil Engineering
3136 TAMU
College Station, TX United States 77843-3136 El Paso, TX United States -
Principal Investigators:
Biswas, Nripojyoti
Mallick, Rajib
Nazarian, Soheil
Puppala, Anand
- Start Date: 20230901
- Expected Completion Date: 20250115
- Actual Completion Date: 0
- USDOT Program: University Transportation Centers Program
Subject/Index Terms
- TRT Terms: Emulsions; Foamed asphalt; Full-depth reclamation; Mix design; Pollutants; Recycled materials; Stabilizers; Subgrade (Pavements)
- Subject Areas: Highways; Materials; Pavements;
Filing Info
- Accession Number: 01896756
- Record Type: Research project
- Source Agency: Southern Plains Transportation Center
- Contract Numbers: 69A3552348306, CY1-TAMU-UTEP-01
- Files: UTC, RIP
- Created Date: Oct 20 2023 9:16AM