Project TitleUse of Machine Learning to Predict Long-Term Skid Resistant of Concrete Pavements
UniversityPenn State
Principal Investigator(s)Farshad Rajabipour
PI Contact Informationfxr10@psu.edu
Funding Source(s) and Amounts Provided (by each agency or organization)Federal Share — $23,964
Match — $24,582
Total Project Cost$48,546
Start and End Dates05/11/2020 — 02/11/2021
Brief Description of Research ProjectThis project intends to use laboratory-measured concrete frictional properties data and build a machine learning (ML) model to predict the friction performance of concrete pavements. The model uses aggregate mineralogy, concrete mixture proportions, and concrete surface finish (tined vs. ground and grooved) as input parameters. It predicts the surface friction (measured via the dynamic friction test, DFT, ASTM E 1911; Komaragiri et al., 2020) and surface texture (measured via the circular track meter, CTM, ASTM E 2157; Komaragiri et al., 2020) of concrete pavements undergoing accelerated polishing tests as a function of number of polishing cycles as well as the terminal friction and texture values associated with long-term polishing. The model further uses these outputs to predict the international friction index (IFI) parameters, including the friction number (F60) and slip speed (SP), as well as the equivalent skid number (SN) measured by locked-wheel trailer test (ASTM E524) at a given speed and for a given concrete pavement.