Colored concrete in modern architecture

LANXESS pigments provide color and outstanding stability in such applications

Without concrete, universally used in structural and civil engineering, life in the modern world would be inconceivable.

Examples such as the yellow pigmented Antión Bodega in La Rioja, Spain or the Arsta Bridge in Stockholm,Sweden colored in traditional “Falun red” show that in-situ concrete and color make an ideal combination. Numerous architects adopt this trend and often win awards for their buildings.

When it comes to colored exterior applications both the concrete but also the pigments themselves need to fulfill certain requirements regarding stability.
Bayferrox® and Colortherm® pigments from LANXESS display high quality levels in terms of color strength and color consistency. Because of their chemical structure these products are highly weather stable, lightfast and UV-stable and are very well suited for the coloring of construction materials. At the same time, the LANXESS production processes ensure low environmental impact.

Apart from that, the LANXESS inorganic pigments can also be applied in steel-reinforced concrete. In Europe, the use of pigments for the coloration of concrete is subject to EN 12878. This standard establishes special requirements for pigments (Category B) for use in steel-reinforced concrete. To satisfy the requirements of this standard, LANXESS offers a selection of products specifically suited for this area of application.

The color range of the entire Bayferrox® and Colortherm® product portfolio includes Yellows, Reds, Greens, Browns and Blacks. In between these colors a wide variety of additional shades are possible. The shades tend towards the opaque colors found in nature, and thus fit harmoniously with the environment. Pure colors like yellow can be made by using white cement. Brilliant, glossy shades, like those obtained in plastics and surface coatings, are very difficult to produce in building materials because of the composition and structure of the concrete.

The Global Competence Center Construction will gladly answer individual customer inquiries with respect to this field of application or provide further information about LANXESS pigments.