ABSTRACT
Colored cements are manufactured so that concrete surfaces of a desired color can be produced. Cements of this type are used mainly for decorative purposes.
Portland cement, the binder most commonly used in civil engineering applications, normally has a gray color, which is caused by the presence of trivalent iron in its structure. Portland clinkers made from iron-free raw meals are white, and are used in the production of white cement (see section 2.7). These are also used mainly for decorative purposes.
