Behavior of flat slabs with partial use of high-performance fiber reinforced concrete under monotonic vertical loading

Reinforced concrete flat slabs are used worldwide in multi-story buildings. In these slabs, the design is often governed by punching shear and serviceability. The mitigation of issues during usually leads to increased raw material consumption costs. Previous studies have shown that using Fiber Concrete (FRC) or High-Strength (HSC) only at vicinity column, while casting rest slab with Normal Strength (NSC), can lead an improved behavior under gravity loads terms both serviceability ultimate capacity. Motivated results scarcity previous tests, present paper experimentally investigates applicability High-Performance (HPFRC) as alternative be seen improvement over FRC HSC, allowing a combination ductility strength. addition, HPFRC this self-compacting, thus reducing labor costs associated vibration. Five 150 mm thick were tested monotonically increasing load. experimental variables flexural reinforcement ratio extent zone. One specimens was cast NSC served reference slab. Results show solution effective for ratios considered. Cracking load, maximum well displacement capacity significantly, even small (1.5 times depth from face column). Regarding load capacity, it observed increase 44% 58% lower (0.64%) between 15%–21% higher (0.96%). indicate use promising regarding limit state reinforced loading, obvious advantages savings