Experimental research on flexural strengthening of two-way reinforced concrete slabs using carbon fiber reinforced polymer sheets

Abstract

In this paper, the strengthening of two-way reinforced concrete (R/C) slabs using Carbon Fiber Reinforced Polymer (CFRP) sheets is evaluated experimentally. Five identical square R/C slabs with 1200 mm side length and 60 mm thickness were constructed and tested to failure under a monotonic central loading point. One un-strengthened slab was used as reference slab while four slabs were strengthened with CFRP sheets. The obtained results of this experimental research have shown the flexural behavior of strengthened slab by CFRP materials and the strengthening effectiveness for moment resist of R/C slab using this material.