TY  - EJOU
AU  - Feng, Qi 
AU  - Wang, Dan 
AU  - Hu, Weijie 
AU  - Zhao, Wenhao 

TI  - Hybrid Fiber Engineered Cementitious Composites (HFECC): A Review
T2  - Structural Durability \& Health Monitoring

PY  - 2026
VL  - 20
IS  - 2
SN  - 1930-2991

AB  - Engineered Cementitious Composites (ECC) represent an advanced class of fiber-reinforced cement-based materials developed over the past three decades, characterized by remarkable tensile strain-hardening and multiple-cracking behavior. By incorporating hybrid fibers, Hybrid Fiber engineered cementitious composites (HFECC) can be tailored to meet specific engineering demands in terms of strength, deformation, dynamic mechanical performance, and cost-effectiveness. This paper provides a comprehensive review of the critical fiber volume theory, experimental investigations into quasi-static and dynamic mechanical properties, and the structural performance of HFECC. Furthermore, current research gaps and future directions for the development and application of HFECC are discussed, aiming to facilitate its broader engineering adoption. In addition, this review emphasizes the micromechanical design principles governing fiber–matrix interactions, highlighting how hybridization strategies optimize the synergy between different fiber types to balance ductility and strength. The practical implications of HFECC in seismic-resistant, impact-resistant, and repair applications are also analyzed. Through an integrated discussion of theoretical and experimental findings, this study seeks to provide a systematic understanding of HFECC behavior and promote its advancement toward sustainable and high-performance infrastructure applications.
KW  - Hybrid fiber; strain hardening cementitious composites; critical fiber volume; quasi-static properties; dynamic mechanical properties; durability

DO  - 10.32604/sdhm.2025.072968