Load-bearing layers distribute the loads from the pavement surface to the subsoil or substructure. They are part of the pavement structure of roads and are crucial for the service life of pavement surfaces. Unbound load-bearing layers and load-bearing layers with hydraulic binders are modern foundations for highly stressed concrete surfaces, concrete pavements, and concrete products in the design of residential environments. The brochure provides practical assistance for anyone planning, tendering, or constructing areas with concrete surfaces or concrete products now or in the future. It also serves as a guide for learners and educators. The revised new edition is aligned with current regulations.