High-strength steel fiber reinforced concrete for road construction

To obtain high-performance road surfaces, it is necessary to use concretes with high performance. The use of steel fiber reinforcement significantly increases the physical and mechanical characteristics of the composite material, but leads to an increase in the stiffness of the mixtures, which complicates the process of laying and compaction. The article proposes a composition of high-performance construction concrete with an increased bending tension and compression strength as compared to the known compositions. The authors make a comparison with the known compositions of high-performance concrete. They present the results of studying the experimental samples of the material. A characteristic feature of the considered steel fiber concrete is the use of microsilica, which is production waste. The use of this composition in road construction increases the performance characteristics of road slabs. (paper)