Abstract
In this research, Textile Reinforced Mortars (TRM) composite is experimentally investigated as a means of increasing the shear resistance of reinforced concrete beams. The experimental program comprises testing 2 control beams, which were intentionally designed to be deficient in shear; in addition to testing 8 beams when externally upgraded by TRM sheets for enhancing their shear capacity. All beams were tested in 4-point bending till failure. The studied parameters included: type of mortar (cementitious versus polymer-modified cementitious), number of TRM layers and textile orientation in the shear-span region. Based on the experimental response of reinforced concrete members strengthened in shear, it is concluded that textile-mortar composite provides substantial gain in shear resistance; this gain is higher as the number of layers increases. With higher number of layers, textile with 45° orientation along with polymer-modified cementitious mortar provides the highest shear strength enhancement.
Published Version
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