Tar is obtained from liquid petroleum. Tar is used as a hot liquid covering under gravel to build roads.
Note: Asphalt is made from bituminous coal pitch, mixed with sand or gravel. The black color comes from coal pitch, not from petroleum, as does tar.
Bitumen
An asphalt is a sticky, black, viscous liquid or semi-soid, present in most forms of crude petroleum and some natural deposits, or the concrete made from such substance, used for roads and walkways.
Pitch is a black, gooey substance used for fixing roads. It is a petroleum-based product that can be heated and applied to cracks and potholes to seal and repair the road surface.
To drive all the millions of vehicles on the roads
bad roads and low deuvelopment
The first 15 minutes of rain are when the roads are the most slippery because there is not a layer of water completely covering the road.
The substance is "Road Salt" or coarse sodium chloride.
uhh ashphalt
tar - obtained by destructive distillation of coal , it is less viscous as it is boiled with volatile fluids like kerosene bitumen - obtained by fractional distillation of crude oil , has more viscosity than tar , soluble in carbon disulphide and has higher B.P than tar
Sand and gravel are mineral resources obtained from the coastal plain of Virginia. These resources are used for construction purposes such as building roads, bridges, and buildings.
Tires are made with rubber. Asphalt roads are made with petroleum products. Both are naturally black in color. Of course, concrete roads are normally beige, the natural color of concrete. And I've seen local roads paved with a concrete/stone mix made using red shale, and they have a strong pinkish hue!
"Have you gotten a Washington State Good To Go Pass for easy travel on toll roads and bridges in the state?"