Clinker cement is a grayish-black solid material produced by heating limestone, clay, and other ingredients at high temperatures in a kiln. It is the primary component of Portland cement, the most commonly used type of cement in construction. Clinker cement is finely ground and mixed with gypsum to form the final cement product. Its usage includes the production of concrete, mortar, and grout, providing strength, durability, and binding properties to various construction applications. It is essential in building structures like bridges, buildings, roads, and infrastructure projects.