Title: Method of controlling and removing ice and snow from roads and bridges

Abstract: A method of controlling and removing ice and snow from roads and bridge deckings in a substantially non-corrosive manner by applying calcium nitrite to such areas at a rate of from 1 to 50 tons per two-lane mile. The present method is particularly applicable to the control and removal of snow and ice from roads and bridges formed from hydraulic cement.

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Inventors: Rosenberg, Arnold M. (Potomac, MD, US)
Gaidis, James M. (Ellicott City, MD, US)

Application Number: 882461
Filing Date: 1978-03-01
Publication_date: 1979-05-08
Assignee: W. R. Grace & Co. (New York, NY)
Primary Class(es): 134/5 252/70
Other Classes:
US Patent Ref:

2681828	Jun, 1954	Pollard	134/5.
3227654	Jan, 1966	Standish et al.	252/70.
3384590	May, 1968	Eversole et al.	252/70.

Other Refs: 754074272462502077

Mar, 1967	CA
Dec, 1968	SU
Apr, 1976	SU

Primary Examiner: Fisher, Richard V.
Assistant Examiner:
Attorney: Troffkin; Howard J., McDowell, Jr.; William W.