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Asphalt vs. Macadam

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Main Difference

The main difference between Asphalt and Macadam is that the Asphalt is a sticky, black and highly viscous liquid or semi-solid form of petroleum; bitumen variety and Macadam is a type of road construction pioneered by Scottish engineer John Loudon McAdam.

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Wikipedia
  • Asphalt (noun)

    A sticky, black and highly viscous liquid or semi-solid, composed almost entirely of bitumen, that is present in most crude petroleums and in some natural deposits.

  • Asphalt (noun)

    asphalt concrete, a hard ground covering used for roads and walkways.

  • Asphalt (verb)

    To pave with asphalt.

  • Macadam (noun)

    The surface of a road consisting of layers of crushed stone (usually tar-coated for modern traffic).

  • Macadam (noun)

    Any road or street.

  • Macadam (verb)

    To cover or surface with macadam.

Wiktionary
  • Asphalt (noun)

    a mixture of dark bituminous pitch with sand or gravel, used for surfacing roads, flooring, roofing, etc.

  • Asphalt (noun)

    the pitch used in asphalt, sometimes found in natural deposits but usually made by the distillation of crude oil.

  • Asphalt (verb)

    surface with asphalt.

  • Macadam (noun)

    broken stone of even size, bound with tar or bitumen and used in successively compacted layers for surfacing roads and paths.

Oxford Dictionary
  • Asphalt (noun)

    Mineral pitch, Jews' pitch, or compact native bitumen. It is brittle, of a black or brown color and high luster on a surface of fracture; it melts and burns when heated, leaving no residue. It occurs on the surface and shores of the Dead Sea, which is therefore called Asphaltites, or the Asphaltic Lake. It is found also in many parts of Asia, Europe, and America. See Bitumen.

  • Asphalt (noun)

    A composition of bitumen, pitch, lime, and gravel, used for forming pavements, and as a water-proof cement for bridges, roofs, etc.; asphaltic cement. Artificial asphalt is prepared from coal tar, lime, sand, etc.

  • Asphalt

    To cover with asphalt; as, to asphalt a roof; asphalted streets.

  • Macadam (noun)

    The broken stone used in macadamized roadways.

  • Macadam (noun)

    A paved surface formed of compressed layers of broken rocks held together with tar.

  • Macadam

    paved with macadam{2}.

Webster Dictionary
  • Asphalt (noun)

    mixed asphalt and crushed gravel or sand; used especially for paving but also for roofing

  • Asphalt (noun)

    a dark bituminous substance found in natural beds and as residue from petroleum distillation; consists mainly of hydrocarbons

  • Asphalt (verb)

    cover with tar or asphalt;

    "asphalt the driveway"

  • Macadam (noun)

    broken stone used in macadamized roadways

  • Macadam (noun)

    a paved surface having compressed layers of broken rocks held together with tar

Princeton's WordNet

Asphalt Illustrations

Macadam Illustrations

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