
1) Broken stone used in pavement 2) Compressed pavement 3) Crushed-stone surface 4) Driveway paving material 5) Ground cover 6) It may make a lot 7) Layered pavement 8) Parking surface 9) Paved surface 10) Paver 11) Paving material 12) Paving stuff 13) Paving substance 14) Playground material 15) Road covering
Found on
https://www.crosswordclues.com/clue/macadam

Macadam is a type of road construction pioneered by Scottish engineer John Loudon McAdam around 1820. The method simplified what had been considered state of the art at that point. Single-sized aggregate layers of small stones, with a coating of binder as a cementing agent, are mixed in an open-structured roadway. == Predecessors == ===Pierre-Mari...
Found on
http://en.wikipedia.org/wiki/Macadam

form of pavement invented by John McAdam of Scotland in the 18th century. McAdam`s road cross section was composed of a compacted subgrade of ... [3 related articles]
Found on
http://www.britannica.com/eb/a-z/m/2

consists of aggregate, which has been mechanically locked together by rolling and cemented together by application of stone screening and water. Bituminous macadam is crushed aggregate in which the fragments are cemented together by bitumen or asphalt.
Found on
http://www.encyclo.co.uk/visitor-contributions.php

[
n] - broken stone used in macadamized roadways
Found on
http://www.webdictionary.co.uk/definition.php?query=macadam
noun broken stone used in macadamized roadways
Found on
https://www.encyclo.co.uk/local/20974

a paved surface having compressed layers of broken rocks held together with tar
Found on
https://www.vocabulary.com/lists/442184
No exact match found.