## 5 Conclusions and Outlook  
Within the framework of this investigation, the influence of electrical heating to temperatures up to 80 \({}^{\circ}\)C in carbon textile reinforced concrete on tensile-load-bearing behavior and crack formation of temperatures up to 80 \({}^{\circ}\)C were investigated. Based on the preliminary findings described, tensile strength tests on the individual components, as well as the composite, were conducted. For this purpose, two CTR, one impregnated with epoxy resin and the other with polystyrene, were connected to a laboratory power supply and electrically heated. The obtained results were compared with specimens heated in a climatic chamber and results from the literature. The key findings of this study can be summarized as follows:  
* Overall, the experimental results for electrical heating demonstrate a decrease in tensile strength in the individual components and composites of CTRC at increasing test temperatures up to 70 \({}^{\circ}\)C. For the fiber strand component, a decrease in tensile strength of up to 10% with EH was determined. This decline was also observed in the tensile strength results of CTRC, exhibiting a 5% reduction. In comparison with the investigated reinforcement materials, the reductions in the tensile strength of the polystyrene-impregnated CTR were lower with increasing temperature. This deviates from the results for AH. * Upon comparing the tensile strength of CTR with that of CTRC, CTR exhibits higher tensile strength, attributed to mechanical bonding and testing effects. However, the results indicate that the electrical heating process does not induce additional effects on the composite system compared to the temperature behavior observed at elevated ambient temperatures. * However, a crucial factor in the utilization of electrically heated CTRC is the impregnation material. The results indicate that the material properties are mainly determined by the impregnation material, particularly at elevated temperatures. Any physical and chemical changes due to temperature variations have a substantial effect on load-bearing capacity and crack formation. Moreover, the results indicate that electrical conductivity varies with different impregnation materials, highlighting the importance of selecting suitable CTR for building components. Figure 17: Ratio of the number of cracks to weft rovings in the measurement area shown as mean values with standard deviation. * Moreover, the stress-strain curve for the uniaxial tensile loading of electrically heated CTRC aligns with the material characteristics known from research results in the literature. * However, EH seems to have a positive impact on the crack distribution of epoxy resin-impregnated CTR. Based on the results of the CTRC tensile strength tests, crack distribution and crack width were analyzed. Electrical heating resulted in an elevated number of cracks while simultaneously reducing the average crack width. These findings are crucial as they support the feasibility of integrating electrically heated CTRC into building components, providing accurate quantification of material properties through electrical heating, thereby advancing the understanding and the potential applications of this innovative material in construction. For further investigation, the impact of electrical heating on crack widths and tensile-load-bearing behavior in components subjected to freezing conditions should be characterized. For this purpose, experiments on CTRC under freezing conditions with heated CTR are planned, and the effect of heating on cracks will be further analyzed in a specific temperature range. Additionally, transient temperature tests should be conducted on the mortar within the investigated temperature range to consider creep behavior, and further analysis should focus on examining the impregnation materials, particularly the softening process. Furthermore, the experimental approach should be extended to include tests with prolonged heating periods and to investigate reversibility.