A STUDY OF SOUTH DAKOTA DEICER NUMBER 2: IDENTIFICATION OF COMPONENTS AND/OR SYNERGIES RESPONSIBLE FOR FREEZING POINT DEPRESSION AND PREVENTION OF ICE ADHESION
The deicing materials developed by the South Dakota Department of Transportation (S.D. DOT) have been evaluated together with their component materials. It has been found that the deicer designated SD2 is effective in greatly reducing the bond strength of ice to Portland Cement Concrete which has been treated with the material. Also, it is suggested that the effectiveness of SD2 is a result of a synergism between its components. An apparatus has been developed which can monitor the cooling curve of solutions through their freezing points. Experiments in this device have shown that SD2 freezes into a disordered solid, as does one of its components, sodium glycolate. It is concluded that there could be very significant benefits from a continuation of this work, not only to determine whether the properties of SD2 can be attributed to a synergistic mechanism, but also to seek a fundamental understanding which, in time, may allow the development of equally effective, but perhaps less expensive, deicers.
- Prepared for the South Dakota Department of Transportation.
South Dakota School of Mines and Technology, Rapid CityDepartment of Physics
Rapid City, SD United States 57701
- Ashworth, T
- Publication Date: 1988
- Features: Appendices; Figures; References; Tables;
- Pagination: 102 p.
- TRT Terms: Adhesion; Antifreeze; Bond strength (Materials); Bonding; Components; Deicers (Equipment); Freezing point; Ice; Portland cement concrete; Synergism (Ecology)
- Uncontrolled Terms: Deicers; Depressions (Indentations)
- Geographic Terms: South Dakota
- Old TRIS Terms: Ice adhesion; Synergism
- Subject Areas: Environment; Highways; Maintenance and Preservation; Vehicles and Equipment; I62: Winter Maintenance;
- Accession Number: 00724512
- Record Type: Publication
- Report/Paper Numbers: 88-06, Final Report
- Contract Numbers: 3213
- Files: TRIS
- Created Date: Aug 1 1996 12:00AM