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Title:

SOME COMPARISONS OF SOLAR AND ROCK SALT FOR ICE MELTING

Accession Number:

00265352

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/issn/03611981

Abstract:

Limited field trials in New Hampshire provided motivation for some laboratory comparisons of solar, rock, and a 1:1 mixture of solar and rock salt for ice melting. The solar salt as received contained much larger particles than the rock salt. In this preliminary study, unsized samples were applied to trays of ice at 10 F in a cold chamber, and the ice melted and salt dissolved were measured as a function of time. During the first 3.5 hours, the cumulative ice melted did not vary significantly for the 3 test materials, but the solar salt melted more ice per unit weight of salt dissolved than the other 2 materials. Failure of solar salt to melt more ice than rock salt during the first hour was contrary to prior road trials. To test the possibility that this difference was due to the absence of particle size reduction by traffic in the laboratory tests, 2 size ranges of solar salt were compared for melting effectiveness. Small crystals melted twice as much ice as large crystals during the first 15 minutes, but the large crystals melted more ice per unit of salt dissolved. Fine solar salt mixed with coarse rock salt might give rapid melting and long-lasting effectiveness on highways.

Supplemental Notes:

Publication of this paper sponsored by Committee on Snow and Ice Control. 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.

Monograph Accession #:

01411377

Authors:

Grant, C L

Discussers:

Wood, Frank O

Pagination:

pp 47-55

Publication Date:

1974

Serial:

Transportation Research Record

Issue Number: 506
Publisher: Transportation Research Board
ISSN: 0361-1981

Conference:

53rd Annual Meeting of the Highway Research Board

Location: Washington District of Columbia, United States
Date: 1974-1-21 to 1974-1-25

ISBN:

0309022991

Media Type:

Digital/other

Features:

Figures (4) ; Tables (6)

Old TRIS Terms:

Subject Areas:

Highways; Maintenance and Preservation

Files:

TRIS, TRB

Created Date:

Jan 29 1975 12:00AM

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