Title: Behavior of Beams Strengthened with Fabric Reinforced Cementitious Mortar in Bending
Author(s): Trevor N. S. Billows and Ahmad Rteil
Publication: Symposium Paper
Appears on pages(s): 30.1-30.14
Keywords: Flexure strengthening, Fiber reinforced cementitious material (FRCM), Textile reinforced mortar (TRM), Flexure capacity, Ductility, Stiffness
The current state of North America’s infrastructure system is in dire straits. The cost of repair is estimated at over $3.6 trillion in the United States alone. As an alternative to the current strengthening methods, fabric reinforced cementitious mortar (FRCM) is proposed to aid the civil engineering industry in removing the infrastructure spending gap. This research initiative set out to determine the flexural strength improvement on RC beams with different textile ratios, different fabric materials and different anchorage methods. Five full-scale (200 x 300 x 4000 mm) (8 in x 12 in x 13 ft) reinforced concrete beams (1 control, 4 strengthened) were cast and tested under monotonic four-point bending conditions. Ultimate flexural capacity, pseudo-ductility, stiffness, and failure mode were taken as performance indicators. The study found that flexural strength was improved by up 81% over the control value.