The present study investigated the tensile characteristics of carbon fiber textile-reinforced mortar (TRM) with aluminum oxide treated anchorage surfaces. The main test parameters of this study include the thickness of TRM, the volume fraction of carbon fiber mesh, and the content of impregnated epoxy resin adopted in anchorage zones. The experimental results indicated that the tensile characteristics of TRM specimens in the pre-cracking stage are dominated by the mechanism of the mortar matrix; meanwhile, the tensile characteristics of TRM specimens in the cracked stage are governed by the volume fraction of carbon fiber mesh, and the amount of epoxy resin used in the anchorage zones. Based on the test results and material properties, an idealized bilinear model for predicting the tensile force–strain curve of TRM test specimens with aluminum oxide treated anchorage surfaces was developed based on ACI 549.4 R-13, and its prediction showed reasonable agreement with the test results.

中文翻译：

---

氧化铝处理锚固面碳纤维纺织增强砂浆的拉伸特性

本研究调查了具有氧化铝处理的锚固表面的碳纤维织物增强砂浆 (TRM) 的拉伸特性。本研究的主要测试参数包括TRM的厚度、碳纤维网的体积分数以及锚固区采用的浸渍环氧树脂的含量。试验结果表明，TRM试件在预开裂阶段的拉伸特性受砂浆基体的作用机理支配；同时，TRM 试样在开裂阶段的拉伸特性受碳纤维网的体积分数和锚固区环氧树脂用量的控制。根据测试结果和材料特性，