摘要:The addition of short steel wire, polypropylene, basalt and other fibers can improve the durability index of concrete, such as compression resistance, cracking resistance and carbonization resistance, which has been widely recognized in the industry. For the durability of fiber concrete, most of the current researches are qualitative, and the quantitative value of various index needs to be further investigated. In view of this, linear fitting and polynomial fitting were introduced into the prediction of durability index of fiber concrete in the present paper. The results show that the fitting method proposed is feasible and accurate for the carbonation index of fiber concrete.