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| What is slag cement (ground granulated blast furnace slag)? | Frequently Asked Questions |
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| Slag cement (also called ground granulated blast furnace slag) is a hydraulic cement produced during the reduction of iron ore to iron in a blast furnace. Molten slag is tapped from a blast furnace, rapidly quenched with water ("granulated"), dried and ground to a fine powder. The rapid quenching "freezes" the molten slag in a glassy state, which gives the product its cementitious properties. For more information, see SCIC #1, "Slag Cement." | |
| Frequently Asked Questions | |
