ICE REMOVAL ON HIGHWAYS AND OUTDOOR STORAGE OF CHLORIDE SALTS

THIS STUDY WAS UNDERTAKEN TO DETERMINE THE COMPARATIVE EFFECTIVENESS OF CHLORIDE SALTS AND ABRASIVE-CHLORIDE SALT MIXTURES FOR ICE REMOVAL, AND ALSO TO STUDY THE STORAGE CHARACTERISTICS OF SODIUM CHLORIDE, CALCIUM CHLORIDE, AND MIXTURES OF THESE MATERIALS. CONTROLLED, FIELD ICE-REMOVAL TESTS WERE RUN ON 15 COMBINATIONS OF MATERIALS WITHIN THREE TEMPERATURE RANGES. DATA WERE COLLECTED ON THICKNESS OF ICE, ACTUAL QUANTITY AND LOCATION OF CHEMICAL OR ABRASIVE APPLIED , AND PERIODIC CONDITION OF THE ICE WITH REGARD TO AMOUNT OF ICE REMOVED. THE OUTDOOR STORAGE CHARACTERISTICS OF SEVEN BULK MATERIALS AND ONE PACKAGED MATERIAL UNDER A LIGHT POLYETHYLENE SHEETING WERE STUDIED. THE MATERIALS WERE SAMPLED FOR MOISTURE, CRUSTING, AND CAKING FOR A PERIOD OF TEN MONTHS. A MIXTURE OF 1/3 CALCIUM CHLORIDE AND 2/3 SODIUM CHLORIDE APPEARS TO BE ONE OF THE BETTER ECONOMICAL MATERIALS FOR ICE REMOVAL, AND THIS MIXTURE WAS FOUND TO STORE WELL IN BULK FOR A PERIOD IN EXCESS OF TEN MONTHS. STRAIGHT SODIUM CHLORIDE WAS FOUND INEFFECTIVE IN CLEARING A WHEELPATH WITHIN A 60-MIN TIME PERIOD AS COMPARED WITH THE MIXTURE OF 1/3 CALCIUM CHLORIDE AND 2/3 SODIUM CHLORIDE. ALSO, SODIUM CHLORIDE CANNOT BE STORED OUTDOORS IN BULK LONGER THAN TWO MONTHS WITHOUT CONSIDERABLE CAKING. MIXTURES OF SALT, WITH ABRASIVE WERE FOUND TO BE RELATIVELY INEFFECTIVE FOR REMOVING ICE BELOW ABOUT 15 F.

Media Info

  • Monograph Title: Maintenance practices
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00217964
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Mar 3 1994 12:00AM