The Research Of Baotou Iron And Steel Company Of Steel Slag Taken As Road Building Material

The physical and mechanical property of steel slag is very similar to crude gravel, It is a kind of potential building material with good properties for road use. In early 20 centuries developed countries have started to carry on the comprehensive exploitation research on steel slag, So far the utilization rate of steel slag is more than 90%, among which 70% or so is used for road engineering. The research of steel slag has been developed in China many years ago. Many domestic enterprises have paved certain roads with the steel slag successively and obtained many successful experiences, Because of starting later, there still be obvious gap between developed countries and China.Steel slag contains certain f- CaO which will create calcium hydroxide and make its volume expanding while meeting water, All these make steel slag unsteady under the state of nature.But it can be used for projects through some measures such as adjusting gradation, aging, slacking and so on。 As one of the most a great deal of solid waste in all countries, the comprehensive utilization of the steel slag have become an important research topic at home and abroad. Currently road construction develops quickly in our country and the demand for road material grows increasingly, There is important meaning for living environment improvement and enterprises development to use steel slag as road the material。Baotou Iron and Steel Company have great reserves of steel slag and the character of old mixed steel slag has already been stable, New open hearth and convertor slag are placed respectively, this provides the convenience for controlling the content of f-CaO and carrying steel slag .Through analyzing the chemistry composition, mechanics function and the...