roads
Tarmac is not a rock by definition. It is a type of material used in road surfacing, consisting of crushed rock, tar, and bitumen. The term "tarmac" is often used colloquially to refer to paved road surfaces.
The reason airport concrete strips are referred to as tarmac is because the company that made the product was called Tar MacAdam, which was shortened to tarmac. Airports during WWII extensively used the product, and the term carried through the decades exclusively when referring to airport concrete, whether or not tarmac is actually used.
I would think the closest synonym might be "runway". Tarmac is a macadam road surface, used for streets, highways, and runways. But it is usually just in reference to airport runways you hear it referred to as "tarmac".
The 1903 trademarked name "Tarmac" derives from "tarmacadam" (1882). By 1919, generally used in Great Britain to describe a runway.
Yes, you need to know the density of tarmac which varies depending on the aggregate used but is around 2.4 tonne per cubic metre
Tarmac is not a rock; it is a man-made material used for surfacing roads, driveways, and parking lots. It is a mixture of asphalt and aggregate materials that form a smooth and durable surface. Tarmac is not impermeable and can allow some water to pass through its surface.
Tarmac Limited was created in 1903.
Tarmac Limited's population is 12,500.
If we didn't have Tarmac roads the roads would be bumpy and dusty, the dust would go in to the air and cause people to cough and could cause crashes. The inventor of Tarmac is Edgar Hooley he invented Tarmac in 1902. Tarmac is heated and then poured on to road.
A ton of tarmac typically covers an area of about 80 to 100 square feet when applied at a thickness of around 2 to 3 inches. The exact coverage can vary based on the specific mixture and application method used. Tarmac, or asphalt, is commonly used for paving driveways, roads, and parking lots.
When installed, tarmac is a mixture of solid aggregate in liquid asphalt. When the mixture cools, the finished tarmac pavement is solid.
Tarmac, short for tarmacadam, was patented in the 19th century by Scottish engineer John Loudon McAdam. It is a road surfacing material made of crushed stone mixed with tar or bitumen, primarily used for surfacing roads and pavements.