Steel-slag concrete

Abstract

The invention discloses steel-slag concrete. The steel-slag concrete is prepared from raw material in parts by volume as follows: 1,100-1,500 parts of steel slag stone, 80-120 parts of mineral powder, 1,000-1,400 parts of iron tailings sand, 200-250 parts of cement, 150-190 parts of water, 10-50 parts of fly ash and 1-12 parts of a water reducing agent. The steel-slag concrete prepared from steel slag instead of stone as coarse aggregate can have counterweight and protection functions, various indexes of the concrete all meet standard requirements of common concrete, and the anti-permeability, the wear resistance and the like of the concrete are even better than those of the common concrete. With massive use of the steel slag, resources such as yellow sand, stone, iron ore and the like are protected, environmental pollution caused by steel slag stacking is reduced, and the ecology is protected.

Description

technical field [0001] The invention relates to a concrete construction technology, in particular to a steel slag concrete construction technology, and belongs to the technical field of building construction. Background technique [0002] In recent years, super high-rise buildings have entered a stage of rapid development, and high-rise buildings have sprung up all over the world. In order to ensure the construction schedule requirements, super high-rise buildings often adopt the "reverse construction method" in the foundation treatment to save process time on key lines. Steel slag concrete is a kind of special heavy-duty concrete produced under this environment. This kind of concrete is used to increase the foundation counterweight and replace the foundation construction uplift piles to achieve the purpose of saving construction time. [0003] Steel slag is the waste slag produced in the steelmaking process, and its quantity is about 15% to 20% of the steel output. In 201...

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Problems solved by technology

[0009] The purpose of the present invention is to overcome the deficiencies in the prior art, such as insufficient steel slag concrete structure strength, weak steel slag surface strength, large raw material ratio restrictions, easy compatibility, poor fluidity, etc., and provide a brand new steel slag concrete

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