Word-of-the-Month: Bituminous


Bituminous is a relatively soft coal that contains a tarlike substance called bitumen (or asphalt) and is known for its waterproofing and adhesive qualities.

Generally, bituminous is used for the construction of roads, preserving timber, and waterproofing stone walls and has been extensively used for surfacing airport pavements and running tracks.

Fun Fact
Bituminous can be found naturally in the environment and is usually the result of high pressure being exerted on lignite.

The image on the right shows the process Stahl will be using to lay the running track at Elk River High School’s new stadium in the coming days. The stadium is schedule for completion in the fall of 2021. (Rendering courtesy of Wold Architects and Engineers.)