engleski

The utilization of the ferrochromium slag as concrete aggregate

This paper presents results of investigation related to the properties of the slag from ferrochrome production when it is used as an artificial aggregate for preparation of concrete pavements, according to the Croatian standard, HRN. U. E3. 020. Satisfactory physicomechanical properties of the high-carbon ferrochromium slag as concrete aggregate in wearing courses of concrete pavements were obtained in this study. A comparison of the compressive strengths of concrete made with the ferrochrome slag-aggregate, and that with crushed limestone shows that slag concrete is stronger. Volume stability, high specific weight, good resistance to frost and salt action, as well as good abrasion resistance to wear and crushability (determinate by using Los Angeles abrasion machine) make this reinforced slag concrete suitable for wearing courses of concrete pavements for traffic load class 1 and 2 where carbonate stone material (limestone) mainly do not meet the Standard Technical Requirements for cement concrete slab pavements according to the Croatian Standard, HRN. U. E3. 020.

Ferrochromium Slag; Aggregate; Concrete Pavements

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