Center for Safety Equity in Transportation

rural • isolated • tribal • indigenous

Development of a Tabletop Dustfall Column and Test Procedure for Chemical Dust Suppressant Performance Testing

  • Active

    CSET Project #: 1911

    Project Funding: University of Alaska Fairbanks

  • Start Date: September 2019

    End Date: September 2020

    Budget: $69294

Project Summary

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.