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:
“You sir, will bring down that renowned chair in which you sit into infamy if your seal is set to this instrument of perfidy; and the name of this nation, hitherto the sweet omen of religion and liberty, will stink to the world.”
—Ralph Waldo Emerson (1803–1882)