Experimental investigation of shear-critical reactive powder concrete beams without web reinforcement

الملخص EN

An experimental investigation was conducted on the behavior of ultra-high strength reactive powder concrete (RPC) beams.

Fifteen singly reinforced beams were cast without web reinforcement.

The main variables were the steel fiber content, longitudinal steel ratio, shear span to effective depth (a / d) ratio and silica fume content.

The maximum concrete matrix compressive strength f'cf was 110 MPa, containing one type of fiber.

An empirical expression is proposed to predict the shear stress resistance of RPC beams without web reinforcement.

The proposed expressions gave good prediction for shear strength.