Shotblasting to Improve Frictional Properties, HR-1057, 1992

(1992) Shotblasting to Improve Frictional Properties, HR-1057, 1992. Transportation, Department of


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Thin overlays, diamond grinding, longitudinal grooving, transverse grooving, and milling have been successful techniques for restoring frictional properties on portland cement concrete (PCC) pavements. Shotblasting offers a lower cost alternative if successful. Five test sections of shotblasting were placed on IA 9 from Decorah east to the Winneshiek County line (milepost 260.0 to 270.0). Both smooth tire and ribbed tire friction testing (ASTM E274) was performed. The conclusions and recommendations are: Based on the study, friction enhancement by shotblasting has a relatively short service life when measured by the ribbed tire test. However, when measured by the smooth tire test, the friction enhancement is longer lasting. Consideration of shotblasting for friction enhancement may be warranted to gain additional information, particularly when smooth tire friction properties are at issue.

Item Type: Departmental Report
Keywords: Friction, Improvements, Pavement maintenance, Pavements, Recommendations, Test sections, Shotblasting
Subjects: Transportation > Pavements
Transportation > Roads and highways
Transportation > Research
Transportation > Equipment
Transportation > Maintenance and preservation
ID Code: 17098
Deposited By: Iowa DOT Library
Deposited On: 06 Jun 2014 17:47
Last Modified: 15 Jan 2015 15:22