Macadam
Road building method by John Loudon McAdam / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Macadam?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
For other uses, see McAdam.
Macadam is a type of road construction pioneered by Scottish engineer John Loudon McAdam around 1820, in which crushed stone is placed in shallow, convex layers and compacted thoroughly. A binding layer of stone dust (crushed stone from the original material) may form; it may also, after rolling, be covered with a cement or bituminous binder to keep dust and stones together. The method simplified what had been considered state-of-the-art at that point.
This article's lead section may be too short to adequately summarize the key points. (November 2023) |