Iron tailing concrete

Abstract

The invention provides an iron tailing concrete which comprises the following ingredients of cement, mineral processing barren rocks and detritus, admixture, water and pumping aid for the concrete determined according to performances, and the ingredients of the concrete according to the weight percentages of the concrete are respectively 4-20 percent of cement, 0-35 percent of mineral processing barren rocks and detritus, 1-8 percent of admixture, 1.5-2.5 percent of pumping aid for the concrete based on the weight sum of the cement and the admixture, and the balance of water. The invention hasthe effects that the novel concrete adopts tailing ores and detritus and is applied to the production of the concrete for partially or completely replacing natural aggregate. The concrete can reducethe pollution to the environment from mineral processing barren rocks, decrease the production volume and the production energy consumption of natural ore materials, accord with three 'green' meaningssuggested by the world environment organization: saving resources and energy; no environmental damages, and more environment friendly; and also according with the strategy of sustainable development,thereby not only satisfying requirements of the contemporary people, but also not damaging the capacity of satisfying unborn requirements.

Description

technical field [0001] The invention relates to a kind of concrete, especially a kind of iron tailings concrete which adopts ore dressing waste rock to be used as concrete aggregate after cleaning, crushing and sieving, and partially or completely replaces natural aggregate. Background technique [0002] At present, ordinary concrete aggregates are mainly natural sand and gravel, which are non-renewable resources. Mechanical mining not only destroys the natural environment, but also causes environmental pollution. However, waste rocks and debris from mineral processing have a low grade of total iron (TFe), and have no comprehensive recovery value. Due to the acceleration of my country's infrastructure construction, the construction industry has entered a stage of rapid development, and the market demand for concrete is increasing. As a result, the mining of natural sandstone mines has also increased sharply, and the stacking of waste rocks and debris in steel plants has also...

AI Technical Summary

Problems solved by technology

[0003] At present, the treatment methods of mineral processing waste rocks and debris are mainly discarded or landfilled, which not only occupies land but also pollutes the environment.