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Best Practices for Road Weather Management Version 2.0

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Title:

Development and Evaluation of Nonchloride Antifreeze Admixture

Abstract:

This report presents the state of development of nonchloride antifreeze admixture that inflicts little salt damage. It also reports on the result of laboratory evaluations of various compounds and on the results of field test spreading of antifreeze admixture. Simultaneous spreading of chloride antifreeze admixture (calcium chloride) and the nonchloride one (sodium acetate) was done. The comparison of the effect was carried out by the skid friction coefficient and a questionnaire of operators driving snow graders and snow removal trucks. Though the calcium chloride spreading section generally exceeded slightly the sodium acetate section, in a few cases the sodium acetate showed better results. It is necessary to improve nonchloride antifreeze admixture and carry out research toward proposed spreading techniques.

Source(s):

6th International Symposium on Snow Removal and Ice Control Technology, Transportation Research Circular, No. E-C063

http://onlinepubs.trb.org/onlinepubs/archive/conferences/snow/Program.pdf

Date: 2004

Author:

Takeshi, Kobayashi, Meiarashi

Keywords:


Anti-icing/deicing chemicals

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