00234188

Component

http://onlinepubs.trb.org...s/hrr/1967/193/193-002.pdf

HEAVY APPLICATIONS OF SAND-SALT MIXTURES TO HIGHWAYS FOR SNOW AND ICE REMOVAL ARE COMMON IN NEW ENGLAND. THE EFFECTS OF THIS SALT ON THE ENVIRONMENT NEAR THE HIGHWAY WERE STUDIED. THE MAXIMUM CONCENTRATIONS OF SALTS MAY BE FOUND AT THE SOIL SURFACE AND NEAREST THE HIGHWAY. THE SOIL SALINITY PROBLEM IS MINIMAL FOR SIMILAR FIELD CONDITIONS. THERE IS SOME TENDENCY FOR SALTS TO TRAVEL LATERALLY AWAY FROM THE HIGHWAY, BUT THE MOST PREVALENT MOVEMENT IS DOWNWARD INTO THE SOIL. AS INFILTRATION PROCEEDS, THE SALT CONCENTRATION IS MARKEDLY DECREASED FROM THAT AT THE SURFACE. SALT CONCENTRATIONS DECREASE DURING THE SPRING AND SUMMER, REACHING A LOW LEVEL BEFORE SALT APPLICATIONS ARE RESUMED IN THE WINTER. CHLORIDE MEASUREMENTS ARE GENERALLY PROPORTIONAL TO TOTAL SOLUBLE SALTS MEASUREMENTS. SODIUM ION CONCENTRATIONS, HOWEVER, APPEAR TO ESTABLISH A DIFFERENT PATTERN THAN THE TOTAL SALTS.

Paper sponsored by Committee on Snow and Ice Control and presented at the 46th Annual Meeting. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.

01410143

pp 8-21

1967

Highway Research Record

Digital/other

Appendices (3) ; Figures (8) ; References (18) ; Tables (4)

Concentration (Chemistry); Highways; Infiltration; Pollution; Snow and ice control; Sodium chloride; Sodium chloride; Soils

Concentration

Environment; Geotechnology; Highways

TRIS, TRB

Jan 16 1994 12:00AM

• EFFECT OF SODIUM CHLORIDE ON GRASSES FOR ROADSIDE USE
• GROUNDWATER CONTAMINATION BY HIGHWAY SALTING
• POLLUTION ASPECTS ASSOCIATED WITH CHEMICAL DEICING
• THE RELATIONSHIP OF ROAD SALT APPLICATIONS TO SODIUM AND CHLORIDE ION LEVELS IN SOIL BORDERING MAJOR HIGHWAYS