CTRE is an Iowa State University center, administered by the Institute for Transportation.

Address: 2711 S. Loop Drive, Suite 4700, Ames, IA 50010-8664

Phone: 515-294-8103
FAX: 515-294-0467

Website: www.ctre.iastate.edu/

Iowa State University--Becoming the Best

Measuring Salt Retention

Salt sample collection per run and grid square

Salt sample collection per run and grid square

Close-up of zero-velocity spreader from high-speed

Close-up of zero-velocity spreader from high-speed video capture

Researcher(s)

Principal investigators:

Co-principal investigators:

Project status

Completed

Start date: 09/15/12
End date: 03/31/13

Sponsor(s)/partner(s)

Sponsor(s):

About the research

Abstract:

This research developed and completed a field evaluation of salt distribution equipment. The evaluation provides a direct comparison of three different types of salt spreaders at three different truck speeds and rates of pre-wetting. A rubber mat was divided into eight sample areas to measure the salt distribution across the lane by each variable combination. A total of 264 samples were processed and measured. These results will support future efforts to target areas of efficiencies specific to salt and brine delivery methods. These results support Iowa Department of Transportation efforts to progress winter maintenance efficiencies and ultimately motorist safety.