Textile reinforced concrete (TRC) is a composite made of a cementitious matrix and non-corrosive fabrics with excellent mechanical behavior and elevated load-bearing capacity. Therefore, TRC is highly recommended for structural applications. Due to the reinforcement’s non-corrosive property, this material is interesting in replacing the reinforced concrete (RC). This work presents a study on the characterization of carbon TRCs under tensile and bending loadings. Direct tensile tests were performed and the effect of the polymeric coating used on the fabric manufacturing, the number of layers and an epoxy resin and sand coating was analyzed. The results showed that the composites mechanical behavior depends mainly on the reinforcement-matrix bond. In order to evaluate the fabric-matrix interface, pull-out tests were carried on. The TRC potential as a structural application is also addressed. Thus, structural beams reinforced with carbon TRC with and without dispersed steel fibers on the matrix were submitted to bending. Compared with RC, the TRC beams presented less ductile behavior. Nevertheless, the current standards for the concrete structures design establish a maximum element displacement of span/250. At this level, the load–displacement curves of TRC and RC beams were coincident, and the applied load was considerably distant from the failure load.

中文翻译：

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碳纤维增强混凝土：材料和结构分析

织物增强混凝土 (TRC) 是一种由水泥基体和非腐蚀性织物制成的复合材料，具有优异的机械性能和较高的承载能力。因此，强烈建议将 TRC 用于结构应用。由于钢筋的非腐蚀性，这种材料可用于替代钢筋混凝土 (RC)。这项工作提出了在拉伸和弯曲载荷下碳 TRC 表征的研究。进行了直接拉伸试验，并分析了所使用的聚合物涂层对织物制造、层数以及环氧树脂和砂涂层的影响。结果表明，复合材料的力学行为主要取决于增强-基体结合。为了评估织物-基质界面，进行了拉拔试验。还讨论了 TRC 作为结构应用的潜力。因此，在基体上有和没有分散钢纤维的碳 TRC 增强的结构梁经受弯曲。与 RC 相比，TRC 梁的延展性较差。尽管如此，混凝土结构设计的现行标准规定了跨度/250 的最大单元位移。在这个水平上，TRC 和 RC 梁的荷载-位移曲线是重合的，施加的荷载与破坏荷载相距很远。混凝土结构设计的现行标准规定了跨度/250 的最大单元位移。在这个水平上，TRC 梁和 RC 梁的荷载-位移曲线是重合的，施加的荷载与破坏荷载相距甚远。混凝土结构设计的现行标准规定了跨度/250 的最大单元位移。在这个水平上，TRC 和 RC 梁的荷载-位移曲线是重合的，施加的荷载与破坏荷载相距很远。