CSET Project #: 1911
Project Funding: University of Alaska Fairbanks
Start Date: September 2019
End Date: September 2020
The Alaska Department of Transportation and Public Facilities recently adopted a laboratory test method to evaluate the performance of dust palliatives used on roadways. The method uses a six foot by eight-inch column through which a sample of treated soil is dropped. The dust that remains in the column is measured and reported. In a follow-on effort UAF developed a portable, table-top dust fall column which has shown promise as a replacement for the current column. The size and simplicity of the new column allows for the column to be used on site to measure the performance of palliatives after placement. It is anticipated the new test method will have less variability than the current test method. The purpose of this study is to validate the new column and test method.