An Overview of Strengthening Concrete Members with Textile Reinforced Mortar
DOI:
https://doi.org/10.70028/sgm.v1i2.8Keywords:
Flexural Strengthening, Jacketing, Shear Strengthening, Textile Materials, Textile Reinforced MortarAbstract
Textile-reinforced mortar (TRM) or fabric-reinforced concrete has a wide range of applications, including repair work, structural strengthening, ditch lining, erosion control, pipe protection, trackways, flood defenses, roofing, and emergency helicopter landing pads. This paper focuses specifically on structural strengthening, particularly shear strengthening and jacketing. According to the findings, among the materials considered, benzobisoxazole (PBO) proves to be the most effective, enhancing the shear capacity of the members by 43.3%, followed by carbon, basalt, and glass fibers. When using fixed materials for strengthening, a U-shaped configuration is more effective than an S-shaped one, increasing shear capacity by 131% compared to 71% for the S-shape. The results also show that increasing the number of textile layers during the strengthening process boosts the shear capacity of the element. Applying the textile layers directly in a straight pattern provides higher capacity than a spiral application. Furthermore, using epoxy resin as a mortar for TRM results in a greater load capacity for column strengthening. A column strengthened with two layers of textiles had more capacity than one with just a single layer. Additionally, when the mortar contains a cementitious material modified with polymer, the flexural capacity is 5.3% higher than that of textiles using cement alone as the mortar.
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