Portland cement

Portland cement is the most common type of cement in general usage in many parts of the world, as it is a basic ingredient of concrete, mortar, stucco and most non-specialty grout. It is a fine powder produced by grinding Portland cement clinker (more than 90%), a limited amount of calcium sulfate which controls the set time, and up to 5% minor constituents (as allowed by various standards).

Properties: The property depends on the qualities and quantities of its components. Being a type of cement, it has a large unit cost. It is important to balance the properties to insure a successful and usable mixture. Portland cements provide both strength and durability “hydraulic cement.” It forms by the mixture reacting, creating a water resistant product. Types: Different types created to meet specific chemical requirements providing durability and strength. 92% of Portland cement produced in the United States

Portland Cement. April 7, 2011. http://www.fhwa.dot.gov/infrastructure/materialsgrp/cement.html (accessed October 4, 2011).

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