Title:
BALLAST FOR MAINTENANCE-FREE TRACK, MAINTENANCE-FREE TRACK, AND MAINTENANCE-FREE TRACK FORMATION METHOD
Document Type and Number:
Japanese Patent JP2021070981
Kind Code:
A
Abstract:
To provide ballast for a maintenance-free track that is composed of recovered crushed stones recovered from a ballast layer of an existing roadbed track and can be used as crushed stones constituting a concrete layer of a maintenance-free track.SOLUTION: A ballast for maintenance-free track that constitutes a concrete layer of a maintenance-free track having sleepers and a concrete layer in which the sleepers are partially buried, comprises recovered crushed stones recovered from a ballast layer of an existing roadbed track and has mud content adhesion of less than 4%.SELECTED DRAWING: None
Inventors:
KAWASE AYA
MUNEKURA SHOGO
SAMBONGI YUKI
MIYAMOTO YOSHIKAZU
MURAKOSHI MASARU
MUNEKURA SHOGO
SAMBONGI YUKI
MIYAMOTO YOSHIKAZU
MURAKOSHI MASARU
Application Number:
JP2019198603A
Publication Date:
May 06, 2021
Filing Date:
October 31, 2019
Export Citation:
Assignee:
SUMITOMO OSAKA CEMENT CO LTD
HIGASHI NIPPON RYOKAKU TETSUDO
HIGASHI NIPPON RYOKAKU TETSUDO
International Classes:
E01B1/00; E01B27/02
Attorney, Agent or Firm:
Fujimoto Partners Corporation