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.
What is the difference between bitumen and coal tar (or tar sands)? Bitumen and coal tar, or tar as it is commonly known, are two very different materials. No. The bitumen that is used on roads, roofs or pavements, for example, is inert and does not present any known health or environmental hazard.