The Calculation of the Amount of Salt Required to Melt Ice and Snow on Highways

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DOIResolve DOI: http://doi.org/10.4224/20358582
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TypeTechnical Report
Series titleTechnical Translation (National Research Council Canada); no. NRC-TT-1004
ISSN0077-5606
Physical description42 p.
Subjectphase transformation; salts; ice; melting point; road networks; sel (chimie); glace; point de fusion; reseau routier
AbstractThis report contains the results of a preliminary theoretical investigation of the action of salts on ice crusts. The theoretical calculations of all the chemical- physical reactions are based on the assumption of ideal mixtures, a condition not found in actual operations on highways. Further studies will be needed to determine the effects of traffic, weather conditions, etc. on these theoretical results. It was concluded that NaCl is superior to MgCl[2].6H[2]0, CaCl[2].6H[2]0, and CaCl[2].2H[2]0, as far as the amounts required are concerned. If temperatures are too low for NaCl, then CaCl[2].2H[2]0 is best. For speed of reaction CaCl[2].2H[2]0 is superior. The salt should be as dry and fine-grained as possible. The melting process is more rapid on concrete than on black top. The choice of salt used today is determined principally by their purchase price.
Publication date
PublisherNational Research Council Canada
LanguageEnglish
AffiliationNational Research Council Canada
Peer reviewedNo
NRC numberNRC-IRC-458
NPARC number20358582
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Record identifier31ed151d-531a-497d-ad5f-a6c12c1be73d
Record created2012-07-20
Record modified2017-06-29
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