Iron tailing concrete and preparation method thereof

Abstract

The invention relates to the technical field of concrete preparation, and particularly discloses iron tailing concrete and a preparation method thereof. The iron tailing concrete comprises the following components: cement, slag powder, fly ash, modified desulfurized gypsum powder, industrial sodium carbonate, iron tailing sand, coarse sand, gravels, water and a water reducing agent. The preparation method comprises the following steps: step 1, mixing the cement, the slag powder, the fly ash, the modified desulfurized gypsum powder, the industrial sodium carbonate, the iron tailing sand, the coarse sand and the gravels, and conducting stirring for 60-90s to obtain uniformly stirred premixed concrete; and step 2, mixing and stirring other raw materials and the premixed concrete for 90-120 seconds to obtain the iron tailing concrete. The iron tailing concrete disclosed by the invention can be used in engineering construction; and the iron tailing concrete has the advantages that the working performance is stable, the compressive strength meets the construction standard, the production cost is low, and the iron tailing utilization rate is increased.

Description

technical field [0001] The application relates to the field of concrete preparation technology, more specifically, it relates to an iron tailings concrete and a preparation method thereof. Background technique [0002] In recent years, with the massive exploitation of natural resources, there are less and less natural sand resources that can be exploited and utilized at present, which is not enough to supply the needs of concrete enterprises. [0003] While natural sand resources are increasingly scarce, a large amount of tailings discharged during the development of domestic mineral resources have not been effectively utilized. Among them, there are many minerals in the iron tailings left after the iron ore is sorted. In addition to iron-containing minerals, there are also metal minerals such as magnesite, and gangue minerals such as chlorite. Due to the different causes of comprehensive factors such as geology and ore belts, the composition of iron tailings minerals is di...

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Problems solved by technology

[0004] In view of the related technologies mentioned above, the inventor believes that the utilization of iron tailings in the related technologies is still at the stage of basic harmless storage, and the utilization rate of iron tailings is not high, so it is necessary to continue to expand the use of iron tailings Utilization range to improve the utilization rate of iron tailings

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