Use of Steel Fiber-Reinforced Rubberized Concrete in Cold Regions – Phase II: Monitoring
This report documents the real-world performance of a new pavement product for use in cold regions—steel fiber-reinforced rubberized concrete (SFRRC). During the previous phase of this research project, Phase I: Use of Steel Fiber-Reinforced Concrete in Cold Regions, SFRRC underwent laboratory testing and then pre-cast panels were designed and installed on Abbott Road in the Municipality of Anchorage in the summer of 2017. During the current phase, Phase II, SFRRC was monitored in the field using visual inspection, continuous collection of strain gauge data, deflection measurements, rut depth, skid resistance, and other measures. SFRRC was also investigated on high-traffic urban arterials/intersections to analyze rutting, freeze-thaw resistance and other possible rigid pavement properties, falling weight deflection, skid resistance, and life-cycle cost. A comparative analysis was conducted using the same measuring techniques on hot mix asphalt (HMA) on an adjacent road section. The results show that the SFRRC road sections have significant rutting resistance compared to the adjacent HMA road section, and the results of freeze-thaw resistance and deflection field testing validate the results of the Phase I laboratory testing. Furthermore, comparative life-cycle cost analyses of SFRRC and HMA justifies the use of SFRRC in roadway construction in cold regions in terms of cost effectiveness, enhanced performance, and extended life. This report recommends the use of SFRRC for highway intersections and/or test sections on major arterials as the next phase of introducing this material for roadway construction in Alaska.
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Corporate Authors:
University of Alaska Anchorage
College of Engineering
,Alaska Department of Transportation and Public Facilities
Research and Technology Transfer
3132 Channel Drive
Juneau, AK United States 99801 -
Authors:
- Abaza, Osama
- Publication Date: 2020-10
Language
- English
Media Info
- Media Type: Digital/other
- Features: Appendices; Figures; Photos; References; Tables;
- Pagination: 108p
Subject/Index Terms
- TRT Terms: Crumb rubber; Fiber reinforced concrete; Freeze thaw durability; Frigid regions; Life cycle costing; Paving materials; Rutting; Steel fibers
- Geographic Terms: Alaska
- Subject Areas: Highways; Materials; Pavements;
Filing Info
- Accession Number: 01763024
- Record Type: Publication
- Report/Paper Numbers: FHWA-AK-RD-4000(165), HFHWY00049
- Files: TRIS, ATRI, USDOT, STATEDOT
- Created Date: Jan 29 2021 4:29PM