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Overview
On-site Recycling to Solve Waste Sleeper Stockpiles
Aging tracks and renewals keep increasing waste concrete sleepers.
Most waste sleepers are stockpiled or landfilled, causing land-use and environmental issues.
Long-distance transport for disposal raises treatment costs and CO₂ emissions.
This technology cuts and crushes waste sleepers on-site and separates reusable materials.
On-site recycling turns waste sleepers into resources that support low-carbon, circular railways.
Core Competencies
Purpose
On-site recycling system that cuts, crushes, and recovers waste concrete sleepers to reduce stockpiling, landfill use, and CO₂ emissions in railway facilities.
On-site Cutting, Crushing & Recovery
On-site Cutting, Crushing & Recovery
Attachment-type devices mounted on excavators cut, crush, and separate waste concrete sleepers on-site to recover aggregates and reinforcing steel.
Integrated Resource Recycling Process
Integrated Resource Recycling Process
Recovered aggregates and steel are reused in railway and civil works, reducing virgin material use and enabling circular use of sleeper waste.
Dust & Environmental Control
Dust & Environmental Control
Cyclone and water-spray units reduce dust and fine-particulate emissions during crushing, improving on-site environmental and working conditions.
Expected Benefits
Reduced Stockpiles & Landfill
– On-site processing decreases long-term storage and landfill of waste concrete sleepers.Resource Recycling
– Recovered aggregates and steel are reused in new railway and civil structures, saving raw materials.CO₂ Reduction
– Recycling and CO₂–mineralization of recovered materials lower greenhouse-gas emissions per sleeper.Cost & Site Efficiency
– Local treatment cuts transport distance and disposal costs while freeing maintenance yard space.
TRL 5
Prototype manufactured and performance verified.
Contact
Korea Railroad Research Institute (KRRI)
Global Business Department
Dr. Jaeyoung Lee
E-mail: iyoung@krri.re.kr
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