Discussion of 'Strengthening Two-Way Reinforced Concrete Floor Slabs Using Polypropylene Fiber Reinforcement' by Matthew J. Radik, Ece Erdogmus, and Travis Schafer

摘要

The paper under discussion deals with a subject of increasing interest and significance because in recent years the strengthening of structures has become more necessary due to the increased demand for new-building construction. The fast construction rate that has been observed in the last years revealed several design and/or construction errors leading to the necessity to strengthen all or parts of structures. Also, the existence of many aged structures leads to the necessity of structural Strengthening. The presented work presents both analytical models and an experimental study regarding the strengthening of slabs using a concrete overlay layer of fiber-reinforced cement (FRC) and glass-fiber-reinforced polymer (GFRP) sheets, comparing both of them in terms of load-carrying capacity and ductility.