ABSTRACT
To study the influence of mixed fiber triple mixing on the compressive strength and splitting tensile strength of fly ash concrete, fly ash concrete with three kinds of fiber mixed with different amounts of basalt fiber, steel fiber, and polypropylene fiber was prepared in this experiment. The experimental results show that the early strength of fly ash concrete with 20% of fly ash is low. When mixed with 0.05% of basalt fiber, 0.1% of steel fiber, and 0.05% of polypropylene fiber, the compressive strength and splitting tensile strength of high-volume fly ash concrete can be significantly improved. At the same time, the mixed fiber fly ash concrete will not fall off and break when it is damaged.
