United States Department of Transportation
i
Minnesota Drive Ramps Microsurfacing Experimental Feature Post-Construction Report
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2020-10-01
[PDF-2.72 MB]
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Edition:Post Construction Report (May 2020 – September 2020)
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Abstract:This project applied microsurfacing to 17 different Minnesota Drive ramp locations with varying geometry and traffic volumes during June of 2020. The emulsion formulation used a PG64-34 base binder highly modified with Styrene Butadiene Styrene (SBS) polymer and approximately 10.5% residual binder. This report documents the construction process and experience using this highly modified formulation and will monitor the ramps performance over the following three years to determine if this microsurfacing formulation can withstand the high use of studded tires, snowplows, plastic deformation and freeze-thaw cycles.
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