Otta seal is a type of bituminous surface treatment that was developed by the Norwegian Road Research Laboratory (NRRL). Its name is based on the location in which it was created in, the Otta Valley. Otta seal was developed to be used as a temporary surfacing on new roads; however, after seeing its strength, it has been used as permanent roads as well.
Read more about Otta Seal: Composition and Application, Where Otta Seal Is Used, Political Impact, Social Impact, Environmental Impact, Costs, Physical Properties, Molecular Structure, Pros and Cons of Otta Seal, Durability and Weathering
Famous quotes containing the word seal:
“Don’t forget that even our most obscene vices nearly always bear the seal of sullen greatness.”
—Gesualdo Bufalino (b. 1920)