繊維補強コンクリート(材料)１

[1190] 複合荷重下における有機繊維および鋼繊維で補強されたセメント系複合材料の破壊特性に関する研究

李譽讚¹, 金圭庸¹, 劉廈敏¹, 南正樹¹ (1.忠南大学校)

キーワード：cementitious composites、fiber reinforced、thermal exposure、impact loading

This study examines hybrid fiber-reinforced cementitious composites (HP-HFRCC) with polypropylene (PP) and smooth steel fibers (SSF) under high-temperature and high-velocity impact conditions. Specimens tested from 25°C to 700°C showed hybrid-reinforced types (Fc100PPSF, Fc140PPSF) excelled in spalling, scabbing, and penetration resistance. Adding 0.15% PP and 1% SSF reduced mass loss and fractures, proving HP-HFRCC’s value for disaster-resilient smart city infrastructure with enhanced durability.