This study presents the development and experimental application of a high-strength fiber cementitious composite (HSFCC) reinforced with steel fibers, aiming to improve structural efficiency in reinforced concrete beam members. The HSFCC exhibited excellent workability with a slump flow over 700 mm, compressive strength of 133.18 MPa, tensile strength of 10.97 MPa (strain 0.34%), and shear strength of 34.07 MPa. To verify the applicability, simply supported beam tests were conducted on non-rectangular reinforced HSFCC specimens designed to enhance bending and shear performance. Compared to conventional concrete beams, HSFCC beams achieved up to 75% higher bending capacity and 6.49 times higher shear capacity even without stirrups. These results highlight the structural advantages of HSFCC in minimizing reinforcement and cross-sectional area while maintaining high performance, suggesting its potential for application in high-rise or long-span buildings.
Lim et al. (Mon,) studied this question.