Guidelines for the Use of Synthetic Fluid Dust Control Palliatives on Unpaved Roads

Abstract

The amount of small soil particles, dust, lost from typical unpaved roads to fugitive dust is staggering. A 1 km stretch of unpaved road can contribute over 2400 kg of dust to the atmosphere (4.2 ton/mile) in a typical 3-month summer season. Road managers typically manage dust from unpaved roads with various dust-control palliatives, which are effective for up to 1 year. Synthetic fluids are a relatively new category of dust-control palliatives. Unlike the more commonly used dust-control palliatives, such as salts, engineering guidelines do not exist for the application and maintenance of synthetic fluids on unpaved roads. To fill this void, we present through this document guidelines for road design and maintenance, palliative selection, application, and care of synthetic fluid-treated roadways.Midwest Industrial Supply United States Department of TransportationReport Documentation Page .............................................................................................. ii Disclaimer ......................................................................................................................... iii List of Figures .................................................................................................................... vi Executive Summary............................................................................................................. 1 CHAPTER 1.0 – Introduction............................................................................................... 4 CHAPTER 2.0 – Background.............................................................................................. 6 Measurements of the Effectiveness of Dust Palliatives .....................................................10 CHAPTER 3.0 – Guidelines .............................................................................................. 16 Road Design and Maintenance...........................................................................................16 Palliative Selection..............................................................................................................20 Application .........................................................................................................................22 Areas Requiring Special Attention......................................................................................26 Maintenance .......................................................................................................................27 CHAPTER 4.0 – Summary................................................................................................. 31 CHAPTER 5.0 – References.............................................................................................. 3