Cement is a binder, a substance that sets and hardens independently, and can bind other materials together. It’s about a blend of calcium silicates and calcium aluminates, obtained by high temperature firing of limestone and clay or marl (in this case we speak about...
Portland cement clinker is a dark grey nodular material made by heating ground limestone and clay at a temperature of about 1400-1500°C. The nodules are ground up to a fine powder to produce cement, with a small amount of gypsum added to control the setting...
Blast furnace slag is a byproduct of the process of the cast iron production during which big quantities of liquid slag are produced. The composition is similar to Portland cement one. The slag acquires hydraulic characteristics if at the output of the furnace it is...