Akademik Veri Yönetim Sistemi
2nd International Conference for Engineering Sciences and Information Technology, ESIT 2022, Al Anbar, Irak, 17 - 18 Ağustos 2022, cilt.3009
The electrical resistivity of concrete is the most important issue in concrete applications and specifications. The electrical resistivity is presented by the flow size of the electrical current inside the concrete structure and can be measured by AC and DC methods, based on two or four-probe methods. Adding the conductive fillers to the cementitious composites and decreasing their electrical resistivity is the way to introduce smart cement composites. Smart concrete is an intelligent system with different properties than normal or traditional concrete. This study indicates the effect of carbon fibers (CF) on the electrical, self-sensing, and self-heating properties of cement composites. Cement-based cubes containing up to 1 vol%. of CFs were tested to improve their electrical performance in terms of self-sensing and heating resistance. Experimental findings showed that adding CF to the cement paste reduced the electrical resistivity by more than 99% of that of the normal cement paste. The obtained results of CF0.75 composites are presented in this study because they showed better responses in terms of self-sensing and self-heating performances. Tested cement composite showed good sensing response under both monotonic and cyclic loading. The same composites showed high heating performance and exceeded 100°C within a short time. The results indicate that the CF composites have the feasibility to use as sensing and heating elements in the concrete structures.