Harsco Crushed Rock

What is Steel Slag?

Steel slag is a co-product of steelmaking, with remarkable properties. In terms of mineral composition, it is a calcium silicate, which makes it suitable for many applications.

Steel Making Co-Product
Slag is a co-product of steelmaking Slag is a co-product of steelmaking
 
Once it is cooled, weathered and crushed, it has remarkable properties Once it is cooled, weathered and crushed, it has remarkable properties
 
It can then be graded to different sizes to suit your application needs It can then be graded to different sizes to suit your application needs
Did you know? Did you know our Crushed Rock is a Green Mineral? Steel slag is a calcium silicate which comes from a renewable source, making it the Green mineral alternative to quarried rock such as limestone.
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What is Steel Slag?
View a video of a highway commissioner comparing Limestone and Steel slag for chip seal roads View chip and seal slag aggregate video