What is Cement? Cement is a fine, powdery substance that acts as a binding agent. It is primarily made from limestone, clay and other materials that are heated in a kiln to produce clinker. This clinker is then ground into a fine powder, often with additives to enhance its properties. Portland Pozzolana Cement (PPC), the most common type, is known for its strength and durability. ... https://www.prismcement.com/blog/concrete-vs-cement-understanding-their-differences