Control of Concrete Pavement Scaling Caused by Chloride Salts

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Title: Control of Concrete Pavement Scaling Caused by Chloride Salts

Author(s): B. D. Tallamy

Publication: Journal Proceedings

Volume: 45

Issue: 3

Appears on pages(s): 513-520

Keywords: no keywords

Date: 3/1/1949

Abstract:
Under modern traffic requirements on heavily traveled roads salt-treated abrasives will not remove ice quickly enough. As maitneance forces have struggled to meet the demand for uninterrupted service the use of straight salts has become increasing common. Direct applications of up to 600 lb of salt per two-lane mile are required to combat extreme icing conditions. Pavements constructed to withstand the weak brines deposited by salt-treated abrasives cannot stand up under straight salt. New pavements appear more vunerable than those two or more years old. The observed resistance to salt action of the oil soaked center streak of uphill traffic lanes led New York state highway engineers to investigate the feasiblity of the use of dilute oil applicatuons as a protective measure. Laboratory tests indicate sucessful results may be expected. In the late summer of 1948 oil spray equipment was developed in time to treat nearly 60 miles of new concrete highways, which should provide a wide base for field observation of the effectiveness of the method.