Research On Electromechanical Effects Of Cement-based Carbon Fiber Composite Flexural Member

Concrete is now the most extensively used material of civil engineering. But it can be easily destroyed by many reasons such as environmental erosion and man-made factors. So that Its supporting capacity will reduce unceasingly, the corresponding durability and the security unceasingly will also drop, even it can appear breaking suddenly and other significant safety incident. Therefore, it is a important topic to carry on the safe examination and the monitor to the building becomes day by day important to the national sustainable development.Carbon fiber reinforced concrete (CFRC) is a kind of multifunctional cement based composite material by uniformly admixing short carbon fibers to concrete.It not only has good mechanical characters but also possesses the self-sensing ability. Moreover, compared the cost with the conventional instrumentation it is lower. The scholars have been paying more attention on it, and its application domain is expanding unceasinglyThe following conclusions were obtained in this thesis:The technics and influencing factor of making a specimen were discussed. We gain a proper mixing proportion after the massive experiments and improve the wet mix process. The mechanism of condction and electromechanical effect were studied preliminary. The test strength electricity effect electric circuit and the main measuring instrument were designed. Desomstarte by the experiment the homography of electromechanical effect and load were syudied. The load and content of carbon which influence the electromechanical effect have been discussed.The homography of load and electromechanical effect has been proved. With the content of carbon increasing, the electromechanical effect decreases.