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DEVELOPMENT OF ANTI-ICING TECHNOLOGY.
| 题名： | DEVELOPMENT OF ANTI-ICING TECHNOLOGY. |
| 作者： | Blackburn-RR; McGrane-EJ; Chappelow-CC; Harwood-DW; Fleege-EJ |
| 关键词： | STRATEGIC-HIGHWAY-RESEARCH-PROGRAM; DEICING-; DEICING-CHEMICALS; DEICING-SALT; SNOW-AND-ICE-CONTROL; WINTER-MAINTENANCE; HIGHWAYS-; METEOROLOGICAL-PARAMETERS; SPREADERS-; COST-BENEFIT-ANALYSIS; MANUALS-; APPLICATION-USE; EQUIPMENT-; PROPOSALS- |
| 摘要： | Limited experience has shown that applying a chemical freezing-point depressant on a highway pavement prior to, or very quickly after, the start of frozen precipitation minimizes the formation of an ice-pavement bond. This anti-icing practice can reduce the task of clearing the highway to bare pavement conditions and can require smaller chemical amounts than are generally required under conventional deicing practices. This report presents information on the anti-icing experiments of nine state highway agencies conducted during the winters of 1991-92 and 1992-93. These tests were used to develop a better understanding of both the conditions under which anti-icing will be effective and how to conduct anti-icing efficiently to ensure the greatest success. Prewetted salt and liquid chemicals were used during the anti-icing experiments. The project also involved evaluating specialized equipment for applying controlled quantities of various chemicals at minimum application rates. Limited field tests were conducted with some Department of Transportation spreaders to determine important variables associated with evaluating spreader application rates and distribution patterns. An American testing protocol for evaluating winter maintenance spreaders was developed and is proposed. A limited cost-benefit analysis was performed, comparing anti-icing effectiveness with deicing operations. The report also contains a preliminary manual of practice for an anti-icing treatment program. Meteorological criteria and support items important for anti-icing operations at potential test sites are provided as well. |
| 总页数： | 1994/04. pp479 (60 Fig., 82 Tab., 30 Ref., 8 App.) |
| 报告类型： | 科技报告 |
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