Siut has succeeded in revolutionizing one of the oldest building materials in the world. Concrete becomes an information and communication medium. Through the targeted integration of optical fibers, the surfaces of our precast concrete elements are transformed into luminous displays. This serves both design purposes and the vandalism-proof and weather-resistant provision of information in public spaces. The natural material properties of the concrete block as well as its look and feel remain completely untouched. Using durable and partly sensor-based electronics, our precast concrete elements can be individually programmed and controlled. Depending on location and purpose, our innovative and easy-to install information systems for walls and floors optimize orientation and guidance of people for example in railway stations, airports and in public spaces. By displaying dynamic arrows, crosses, lines or pictograms, our smart concrete not only finds application as a guidance and information system, but also as an innovative security concept.