COVID-19
For the latest COVID-19 health guidance, statistics and resources, visit Coronavirus.wa.gov.
The performance of portland cement concrete mixes with higher flexural strength, higher cement content, and with Hard-Cem additive and carpet drag finish will be evaluated over a period of five years to determine if they are more resistant to studded tire wear. Special sections of each mix will be tested over a five year period to determine the rate of studded tire wear as compared to the WSDOT standard 650 psi flexural strength mix and tined finish. In addition, the carpet drag finish will be compared to transverse tining with regard to providing adequate friction resistance over time and reducing tire/pavement noise.