Experimental study on frost resistance of steel fiber reinforced concrete

To study the application of steel fiber reinforced concrete in cold areas, a rapid freeze-thaw test was carried out for C30 grade steel fiber reinforced concrete with a steel fiber content of 0.4%, 0.8%, 1.2%, and 1.6%, respectively. The results show that in the case of increasing freezing and thawing times, the failure pattern of the specimen is aggravated obviously. However, with the addition of steel fiber, the mass loss rate of the specimen is gradually reduced, and the initial tangent modulus and flexural properties are improved. The freezing resistance of the specimens has been improved continuously. Steel fiber can effectively resist the durability damage of concrete after the freeze-thaw cycle.