LIQUID CALCIUM CHLORIDE BOOSTS SALT'S EFFECTIVENESS

THE TREND TOWARD INCREASING QUANTITIES OF DEICING CHEMICALS PER HOUR PER STORM HAS BEEN ARRESTED. ASSESSMENT OF THE LIMITATIONS OF SALT HAS LED TO THE CONCLUSION THAT IT HAS DEVELOPED A SYSTEM USING LIQUID CALCIUM CHLORIDE AS A SALT TREATMENT THAT WAS FIELD-TESTED ON THE TOLEDO-- CLEVELAND SECTION OF THE OHIO TURNPIKE DURING THE WINTER OF 1970-71 AND THEN EXPANDED DURING THE WINTER OF 1971-72 TO OTHER ROADS IN OHIO, IOWA, AND ILLINOIS. IN THE MELTING ACTION OF SALT, CONCENTRATED BRINE FORMS AND RESISTS FURTHER DILUTION UNDER SUBFREEZING TEMPERATURES. THE STRONG BRINE QUICKLY CRYSTALLIZES. IN CONTRAST, A SMALL AMOUNT OF LIQUID CALCIUM CHLORIDE ADDED TO A TONE OF SALT DILUTES BOTH CHLORIDE BRINES, BRINGING THEM TO A STATE INCAPABLE OF FURTHER MELTING. AS A RESULT, ONLY A MINIMUM OF SALT RECRYSTALLIZATION OCCURS. TEST RESULTS HAVE SHOWN THAT APPLICTION RATES OF SALT PER MILE HAVE BEEN SHARPLY REDUCED, WHILE SUPERIOR EFFECTIVENESS HAS BEEN ACHIEVED. A BRIEF PRESENTATION IS MADE OF THE SYSTEM'S CHEMISTRY, ECONOMICS, DISPENSING EQUIPMENT, APPLICATION PROCEDURES, AND STORAGE.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1519687
• Publication Date: 1972-7

Media Info

• Features: Photos;
• Pagination: p. 22-3
• Serial:
  • Better Roads
  • Publisher: James Informational Media, Incorporated
  • ISSN: 0006-0208
  • Serial URL: http://www.betterroads.com

Subject/Index Terms

• TRT Terms: Additives; Applications; Calcium chloride; Deicers (Equipment); Deicing chemicals; Liquids; Rates; Salts
• Uncontrolled Terms: Deicers
• Subject Areas: Highways; Maintenance and Preservation; Research; Vehicles and Equipment;

Filing Info

• Accession Number: 00218997
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 23 1971 12:00AM