Asphalt macadam is a term that is commonly used in the construction industry. It refers to a type of road surface that is made up of a mixture of asphalt and crushed stone. This article will explore the definition and meaning of asphalt macadam, its origin, and its associations.
Definitions
Asphalt macadam is a type of road surface that is made up of a mixture of asphalt and crushed stone. The mixture is heated to a high temperature and then spread over the road surface. The asphalt acts as a binding agent, holding the crushed stone together.
Origin
The term asphalt macadam was first used in the 19th century by John Loudon McAdam, a Scottish engineer. McAdam developed a new method of road construction that involved layering crushed stone and then covering it with a layer of smaller stones. The surface was then rolled to create a smooth surface. This method of road construction became known as macadamization.
Meaning in different dictionaries
According to the Oxford Dictionary, asphalt macadam is “a road surface consisting of a layer of crushed stone and a layer of asphalt.” The Merriam-Webster Dictionary defines it as “a road surface made of crushed stone and asphalt cement.”
Associations
Asphalt macadam is commonly used in road construction and is known for its durability and resistance to wear and tear. It is also used in parking lots and driveways.
Synonyms
Synonyms for asphalt macadam include asphalt concrete, blacktop, and tarmac.
Antonyms
Antonyms for asphalt macadam include dirt road, gravel road, and cobblestone road.
The same root words
The root words of asphalt macadam are asphalt, which comes from the Greek word asphaltos, meaning “bitumen,” and macadam, which is named after John Loudon McAdam.
Example Sentences
- The road was paved with asphalt macadam to ensure its durability.
- The parking lot was covered in blacktop, which is another name for asphalt macadam.
- The cobblestone road was replaced with asphalt macadam to make it smoother and more durable.