Bridge deck icing is a phenomena that Highway Department and motorists must contend with each winter. The formation of ice on bridge decks as the temperature falls below 0 C (32 F) creates a particularly treacherous condition. Since much less heat is stored in the deck than in the ground, the deck can ice while the rest of the roadway is clear. When this occurs, unwary drivers may approach these bridges at unsafe speeds.
Verglimit is the proprietary name of a multi-component defroster that is added to the asphalt concrete wearing surface. It is a specifically conserved and activated defroster compound which is released in small quantities by the traffic induced abrasion. Verglimit, which is produced in Germany, has been primarily used in Europe. In view of the favorable reports from Europe, it was decided to test it on two bridges in Oregon that are known to have icing problems.
In 1983, experimental Verglimit overlays were placed on two Oregon bridges known to have icing problems. The performance of the test overlays, constru...
Several commercially available bridge deck overlay systems claim to be waterproof and reduce deterioration caused by chloride laden water from penetra...
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