Recent Advances in Properties and Application Progress of Cement-Based Materials with Iron Tailing

In the context of the comprehensive green transformation of infrastructure construction, utilizing bulk waste tailings materials, such as iron tailing, in cement-based materials commonly used in the infrastructure sector holds significant practical importance. However, there are differences in the range of iron tailings content used in previous studies, and the research results are quite scattered. There has not yet been a recommendation for a reasonable material ratio, which severely restricts the resource utilization of iron tailings in cement-based materials. To effectively guide the design and performance optimization of cement-based materials using iron tailing, recent advances related to iron tailing cement-based materials have been reviewed systematically. The previous studies on the composition design of iron tailing in cement-based materials were summarized, and the effect of iron tailing and cement on the mechanical properties and durability of various cement-based materials were highlighted. The results show that the recommended content of iron tailing sand in concrete is 25-50%. Under this content, the mechanical properties of iron tailing sand concrete increase the most, and it has better drying shrinkage performance and carbonation resistance. For cement stabilized base materials, the recommended content of iron tailing sand is 11-20%. Under this content, its mechanical properties increase significantly, and it also has excellent drying shrinkage and temperature shrinkage performance. The increase in the content of iron tailing stones reduces the mechanical properties of cement stabilized materials. Cement stabilized iron tailing stones can be applied to the roadbase by adjusting the cement content and the content of iron tailing stones.