Flexural Behavior of RC Slabs Strengthened in Flexure with Basalt Fabric-Reinforced Cementitious Matrix

الملخص EN

This paper presents both experimental and analytical research results for predicting the flexural capacity of reinforced concrete (RC) slabs strengthened in flexure with basalt fabric-reinforced cementitious matrix (FRCM).

A total of 13 specimens were fabricated to evaluate the flexural behavior of RC slabs strengthened with basalt FRCM composite and were tested under four-point loading.

The fiber type, tensile reinforcement ratio, and the number of fabric layers were chosen as experimental variables.

The maximum load of FRCM-strengthened specimens increased from 11.2% to 98.2% relative to the reference specimens.

The energy ratio and ductility of the FRCM-strengthened specimens decreased with the higher amount of fabric and tensile reinforcement.

The effective stress level of FRCM fabric can be accurately predicted by a bond strength of ACI 549 and Jung’s model.