Polypropylene Fibre-Reinforced Concrete (PPFRC) has gained considerable attention in recent years due to its enhanced mechanical properties, durability, and sustainability. However, existing literature often isolates specific parameters such as compressive strength, flexural behaviour, or fire resistance, making it challenging for researchers to assess the overall performance of PPFRC comprehensively. This review compiles and critically examines the most recent advancements (2022– 2025) in PPFRC, focusing on mechanical characteristics, durability performance, and structural applications. By focusing on contemporary studies, the review highlights advancements in fibre dosage optimisation, hybrid fibre reinforcement, and long-term durability. Results indicate that polypropylene fibres can improve compressive strength by 5–30 % and flexural strength by 10–50 %, while ductility and toughness enhancements range from 30% to 160%, contributing significantly to crack resistance. On the durability front, fire resistance is notably improved, with residual strength retention up to 80% at 600°C; freeze-thaw resistance is enhanced by 15–40 %, and sulfate and chloride resistance improve by 20–55 %. Despite these advancements, challenges remain in validating laboratory findings at the field scale and understanding long-term performance beyond a 10-year horizon. Standardisation in mix design and testing procedures is also necessary for broader industry adoption. This review emphasises PPFRC’s potential in forming resilient, durable, and sustainable infrastructure and suggests future directions such as AI-based mix optimisation, hybrid fibre systems, and integration with emerging technologies like 3D printing. Major Findings: This review carefully studied the recently published articles to highlight the latest improvements in PPFRC. Durability 10-50 % and strength 5-30 % have improved significantly. The study also shows Fire resistance up to 80% at 6000. Machine learning models are used to optimise mix design and predict performance.
Kudoli et al. (Thu,) studied this question.