Term Details

Display Hierarchical | Alphabetical | KWOC | KWIC


Top Terms > Materials > Classes of materials > Building materials > Building materials by properties > Aggregates, rock and stone > Consolidated aggregates, rock and stone > Ballast (Railroads)

Find related records

Search with TRT term only:

TRB Publications Index
Research in Progress
TRID

Expanded search with
narrower TRT terms:

TRB Publications Index
Research in Progress
TRID

Ballast (Railroads) (Rbmddvb)

Definition
Coarse gravel laid to form a bed for streets and railroads. (Source: wordnet.princeton.edu)
Use For
Railroad ballast
Broader Term
Consolidated aggregates, rock and stone (Rbmddv)
Narrower Terms
Asphalt ballast (Rbmddvbb)
Subballast (Rbmddvbs)
Related Terms (Hierarchical)
Macadam (Rbmddvm)