Experimental study on the basic properties of steel fiber concrete under carbonization environment

concrete;  steel fiber;  Carbonization

Based on the parameters of concrete strength grade, steel fiber volume rate and carbonization time, the basic performance tests of concrete, steel fiber concrete and steel fiber high-strength concrete specimens under carbonization environment were carried out, and the compressive strength, splitting strength, flexural strength and carbonization depth of concrete and steel fiber concrete with different carbonization time were tested, and the enhancement mechanism of steel fiber on the carbonization performance of concrete was discussed. The results show that the strength grade and carbonization time of concrete have significant effects on the basic mechanical properties and carbonization depth of steel fiber concrete, and high-strength steel fiber concrete has high carbonization resistance. The volume ratio of steel fiber has a certain degree of influence on the carbonization resistance of steel fiber concrete.