For quantitative assessment of flexural strength by crack condition of PSC sleeper, which is one of the main components of the ballasted track, 9 PSC sleepers used in Gyeongbu high speed railway line were sampled and static bending strength tests were conducted by EN 13230-2. The flexural strength of PSC sleepers with some mesh or longitudinal cracks was lower than that of new sleepers. In particular, the flexural strength of PSC sleepers with mesh-type cracks was less than 40% of the new sleepers’ flexural strength. The flexural strength of uncracked sleepers was similar to that of new sleepers

Abstract
 1. 서 론
 2. 고속선 사용 PSC침목의 샘플링
 3. 샘플링된 침목의 보유 휨 내력 평가
 4. 결 론
 참고문헌

• 배영훈(한국철도기술연구원 첨단궤도토목본부) | Bae, Young Hoon 교신저자
• 배준현(한국철도기술연구원 첨단궤도토목본부) | Bae, Jun Hyun
• 김만철(한국철도기술연구원 첨단궤도토목본부) | Kim, Man Cheol