BALLASTED TRACK SYSTEMS WITH RUBBERIZED ASPHALT COATINGS AND RELATED METHODS
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United States of America Patent
Stats
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N/A
Issued Date -
Nov 10, 2022
app pub date -
May 10, 2022
filing date -
May 10, 2021
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
An example track system includes: a supporting structure; ballast supported by the supporting structure; a plurality of track ties supported by the ballast; a pair of rails supported by the plurality of track ties; and a layer of rubberized asphalt coating disposed as an interface between the ballast and the supporting structure, the rubberized asphalt coating having bituminous binder, crumb rubber particles, and small gradation hard rock aggregate; wherein resiliency of the layer of rubberized asphalt coating permits particles of the ballast in direct contact with the layer of rubberized asphalt coating to move elastically relative to each other while inhibiting abrasion of adjacent ones of the particles of the ballast against each other and against the supporting structure.
First Claim
Other Claims data not available