Comparative investigations into environment-friendly production methods for railway prestressed concrete sleepers and bearers

Social Sciences

• production method 100%
• German Federal Railways 80%
• efficiency 8%
• endurance 6%
• production process 6%
• automation 6%
• research process 5%
• environmental impact 5%
• research results 5%
• worker 3%
• costs 3%
• present 3%
• lack 2%
• performance 2%

Earth & Environmental Sciences

• environment friendly 86%
• railway 73%
• method 15%
• durability 9%
• load bearing capacity 7%
• design method 5%
• research work 5%
• automation 5%
• environmental impact 3%
• safety 3%
• services 3%
• world 2%
• cost 2%
• analysis 1%

Engineering & Materials Science

• Prestressed concrete 77%
• Durability 33%
• Dynamic loads 13%
• Bearing capacity 13%
• Structural design 13%
• Environmental impact 13%
• Service life 13%
• Automation 10%
• Costs 5%