The utilization methods of steel slag

1. High performance composite admixture

Research has shown that steel slag micro powder has a specific surface area of 420m ²/ When the weight exceeds kg, its activity is similar to that of blast furnace slag. The composite addition of steel slag micro powder and slag micro powder not only further increases the proportion of steel slag micro powder in the composite powder, but also increases the substitution amount of composite powder for cement while ensuring the performance of concrete, thereby further reducing the preparation cost of concrete; It has a significant reduction effect on the shrinkage deformation of the binder and a significant improvement effect on the crack resistance performance of the binder.

2. Cement preparation

Steel slag micro powder has long been included in national standards as a cement admixture. By adding slag, steel slag, cement clinker, gypsum, etc. in a certain proportion to Portland cement, various types of cement such as steel slag Portland cement, low heat steel slag cement, and steel slag road cement can be prepared.

3. Preparation of steel slag bricks

The stabilized steel slag and granulated blast furnace slag, as the main raw materials, can be mixed with a small amount of activator to produce building materials such as bricks, floor tiles, and blocks. Their strength and durability are higher than those of clay bricks.

4. Environmentally friendly materials

Steel slag can be used to prepare environmentally friendly materials, such as adsorbents, catalysts, etc. Its porosity and large surface area give it a certain adsorption and catalytic effect in the treatment of waste gas and wastewater.

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