Abstract: The invention relates to a luminescent paving stone in the form of an artificial stone or a natural stone, having at least one self-sufficient luminescent element (22) and a stone body (20). The stone body (20) comprises at least one recess (24) extending from a top side (54) to a bottom side (56) and designed for receiving a luminescent element (22). The luminescent element (22) receives electrical components (36), in particular a photovoltaic cell (38), a charge store (40), a control device (42), and a luminous element (44), and has a length no greater than the depth of the recess (24). The recess (24) has a perforated wall, and a peripheral gap (58) is formed between the perforated wall and the side wall, in which an adhesive mass (26) is present.

Abstract: The invention relates to a luminescent paving stone in the form of an artificial stone or a natural stone, having at least one self-sufficient luminescent element (22) and a stone body (20). The stone body (20) comprises at least one recess (24) extending from a top side (54) to a bottom side (56) and designed for receiving a luminescent element (22). The luminescent element (22) receives electrical components (36), in particular a photovoltaic cell (38), a charge store (40), a control device (42), and a luminous element (44), and has a length no greater than the depth of the recess (24). The recess (24) has a perforated wall, and a peripheral gap (58) is formed between the perforated wall and the side wall, in which an adhesive mass (26) is present.

Abstract: The invention relates to a block-type component that is used as a construction material for walls, e.g., noise barriers and walls of buildings. The component comprises an exterior and an interior, in addition to a three-ply construction including the following layers: an external layer, which consists of stone or concrete and forms the exterior, a central layer of insulating mortar with a high degree of thermal insulation, comprising at least 70% by volume (in relation to the volume of the central layer) of reprocessed, granular polyurethane and cement as the binding agent, and an internal layer that preferably contains cement as the binding agent, the layer forming the interior.

Abstract: The invention concerns insulating mortar which displays very good heat-insulating properties. It contains at least 70 vol. %, preferably at least 80 vol. %, in particular at least 85 vol. %, recycled, comminuted hard polyurethane, the remainder consisting of cement and optionally additives as well as water for setting purposes.