Thermal behavior such as heat transfer is an important parameter for construction composites. Three-dimensional textile reinforced concrete (TRC) is one of the construction composites which is recently being used in the building industry. Therefore, in this study, the thermal behavior of three different TRC samples was investigated by a heat transfer test using an infrared method. The cementitious matrix was reinforced by 3D fabric with three different spacer yarn orientation angles. The cementitious matrix was fabricated by cement and waste stone powder. The TRC sample was put on the hot plate of the heat transfer apparatus and the temperature variations of the top surface of the sample were obtained. According to the test results, increasing the orientation angle of spacer yarns leads to a decrease in the thermal conductivity of the TRC sample and reduces heat transfer. On the other hand, a theoretical model was used to calculate the thermal conductivity and resistance coefficients of sandwich samples. Furthermore, a 3D finite element model was used to predict the heat transfer of TRC specimens. A unit cell of the TRC model was created in Abaqus software and finite element (FE) analysis was carried on a created model. Thermal conductivity and thermal resistance of samples according to FE results were calculated and compared with experimental results. FE results showed good agreement with the experimental data.

传热等热行为是建筑复合材料的重要参数。三维纺织增强混凝土（TRC）是一种建筑复合材料，最近被用于建筑行业。因此，在本研究中，通过使用红外方法的传热测试研究了三种不同 TRC 样品的热行为。水泥基体由具有三种不同间隔纱取向角的 3D 织物增强。水泥基体由水泥和废石粉制成。将 TRC 样品放在传热装置的热板上，获得样品顶面的温度变化。根据测试结果，增加间隔纱的取向角会导致 TRC 样品的热导率降低并减少传热。另一方面，使用理论模型计算夹层样品的导热系数和电阻系数。此外，使用 3D 有限元模型来预测 TRC 试样的传热。在 Abaqus 软件中创建 TRC 模型的晶胞，并对创建的模型进行有限元 (FE) 分析。根据有限元结果计算样品的热导率和热阻，并与实验结果进行比较。有限元结果与实验数据显示出良好的一致性。此外，使用 3D 有限元模型来预测 TRC 试样的传热。在 Abaqus 软件中创建 TRC 模型的晶胞，并对创建的模型进行有限元 (FE) 分析。根据有限元结果计算样品的热导率和热阻，并与实验结果进行比较。有限元结果与实验数据显示出良好的一致性。此外，使用 3D 有限元模型来预测 TRC 试样的传热。在 Abaqus 软件中创建 TRC 模型的晶胞，并对创建的模型进行有限元 (FE) 分析。根据有限元结果计算样品的热导率和热阻，并与实验结果进行比较。有限元结果与实验数据显示出良好的一致性。