Failure Criteria and Constitutive Model of Polypropylene Fiber–Reinforced Expansive Self-Consolidating Concrete under Biaxial Loading

Understanding the biaxial mechanical behavior of polypropylene fiber–reinforced expansive self-consolidating concrete (PPESCC) is of critical significance for predicting the response of a structure under multiaxial compression or multiaxial compression and tension. To study the combined effects of polypropylene fiber and expansive agent on strength, the addition of an expansive agent (8% by cementitious material mass) and the volume fraction of...