Studies On Electric Properties And Applications Of Carbon Fiber Reinforced Concrete (CFRC)

The paper mainly studies the effect on Carbon Fiber Reinforced Concrete's (CFRC) conductivity of age, strength, water ratio and carbon fiber. The paper also studies the function of CFRC in three point bending beam. The main conclusions are as follows.a. The conductivity of CFRC is influenced by the hydration of cement remarkably.b. The conductivity of concrete mixed with polyacrylonitrile base carbon fiber has little relationship with concrete strength while the conductivity of concrete mixed with asphalt base carbon fiber increases monotonically as the strength of concrete increases.c. Water ratio impacts the conductivity of CFRC dramatically, which has little relationship with concrete strength.d. There are good corresponding relationship between the resistance of CFRC and its strain, which proves that CFRC can be used as a new gauge in three point bending notched beam and Nondestructive Examination.The fracture toughness increases as the strength of CFRC increases, which indicates that the ability to impede fracture of CFRC increases with its strength increases. The test also proves that the double-K fracture parameters have relationship with concrete strength.