Composite Portland Cement Manufacturer's Description Composite Portland Cement is a type of hydraulic cement that hardens when combined with water and creates a hydration reaction. This product is created from the combination of hydraulic lime and clay and occupies a very high share in the construction industry. This substance is available to the consumer in different types, including type 1, type 2, type 3, type 4 and type 5. Today, this material is used for various purposes. Because its different types have high efficiency and durability and provide the necessary resistance for the desired structure. In this article, we are going to introduce composite portland cement, which has more distinctive properties than ordinary portland cement. Stay with us.