Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effect of Insulating the Underside of a Bridge Deck
A study was designed to determine the merit of insulating the underside of a bridge deck in (a) preventing formation of ice or frost on a bridge deck before it formed on abutting pavement, and (b) decreasing the number of freeze-thaw cycles and salt applications. The underside of one of twin bridges was insulated with 3/4-inch of Urethane foam. Coils to determine the temperature were installed in the insulated and uninsulated decks, the approach slab, and air. The data collected show that the insulation should be beneficial in reducing the occurrences of early formation of ice or frost and the number of freeze-thaw cycles. It did not permit reduction of the number of applications of salt or quantity applied. These data are insufficient to determine if the insulation has any effect on deterioration of concrete. It is not recommended that insulation be applied to other bridge decks in Missouri until a better cost-benefit ratio can be established. Further observations of temperature will produce no additional useful information and will be discontinued. However, semiannual surveys of the slabs will be made and the insulation will be left in place. (Author)
Effect of Insulating the Underside of a Bridge Deck
A study was designed to determine the merit of insulating the underside of a bridge deck in (a) preventing formation of ice or frost on a bridge deck before it formed on abutting pavement, and (b) decreasing the number of freeze-thaw cycles and salt applications. The underside of one of twin bridges was insulated with 3/4-inch of Urethane foam. Coils to determine the temperature were installed in the insulated and uninsulated decks, the approach slab, and air. The data collected show that the insulation should be beneficial in reducing the occurrences of early formation of ice or frost and the number of freeze-thaw cycles. It did not permit reduction of the number of applications of salt or quantity applied. These data are insufficient to determine if the insulation has any effect on deterioration of concrete. It is not recommended that insulation be applied to other bridge decks in Missouri until a better cost-benefit ratio can be established. Further observations of temperature will produce no additional useful information and will be discontinued. However, semiannual surveys of the slabs will be made and the insulation will be left in place. (Author)
Effect of Insulating the Underside of a Bridge Deck
1965
93 pages
Report
Keine Angabe
Englisch
Civil Engineering , Bridges , Thermal insulation , Isocyanate plastics , Pavements , Ice , Freezing , Melting , Temperature , Missouri
Effect of insulating underside of bridge deck
| Engineering Index Backfile | 1963
| British Library Conference Proceedings | 1996
Underside Lead Corrosion: Question
| British Library Conference Proceedings | 1996