Gravel Road

Crowfield Road Aggregate Performance Study

To evaluate common surface aggregates and placement methods to determine the most durable and cost-effective unpaved road surfacing practices.


Source

PA Bureau of Forestry. This was a Masters of Science thesis by a Center employee.


Status

The study was completed in 2006. The write up was completed in 2007.


Details

Three commonly used surface aggregates, 2A, 2RC, and Driving Surface Aggregate(DSA) were placed side-by-side on Crowfield Road in Centre County. Each of the three aggregates was placed using two placement methods (tailgating and paver-placement) for a total of six test sections. These sections were monitored for changes in road surface elevation and shape for three years.

A paver places DSA on Crowfield Road in 2002.
A paver places DSA on Crowfield Road in 2002.

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