Building Project Information. On May 2, 2017, the New Bremen Schools Board of Education will be placing a bond levy on the ballot for a new K-8 building. You can find more information about the building project by using any of the Building Project links within the red navigation bar above or by clicking here.
Bitumen is the thickest form of petroleum there is, made up of 83% carbon, 10% hydrogen and lesser amounts of oxygen, nitrogen, sulphur, and other elements. It is a natural polymer of low molecular weight: at lower temperatures it is rigid and brittle, at room temperature it is flexible, at higher temperatures it flows.
In the production of bitumen emulsion, water is treated with an emulsifying agent and other chemicals and is pumped to a colloid mill along with bitumen. The colloid mill breaks the bitumen up into tiny droplets.The emulsifying agent migrates to the asphalt-water interface and keeps the droplets from coalescing.n the production of bitumen emulsion, water is treated with an emulsifying agent and other chemicals and is pumped to a colloid mill along with bitumen. The colloid mill breaks the bitumen up into tiny droplets.