The strength and durability of PSC sleepers may deteriorate in the long term due to the cracks generated on the concrete surface, and maintenance is required to improve the strength and usability of sleepers and prolong the service life for a certain period. In this paper, flexural strength tests were carried out on rectangular parallelopiped specimens and real cracked PSC sleepers to evaluate the contribution of the flexural performance for the liquid-type reinforcing materials.

• 배영훈(한국철도기술연구원 첨단궤도토목본부) | Bae Younghoon 교신저자
• 고태훈(한국철도기술연구원 첨단궤도토목본부) | Koh Taehoon