Abstract: Building material for use in the building industry. According to the invention, the building material comprises at least one thermochromic material which changes colour and/or transparency depending on a switching temperature, the colour and/or transparency changing occurring in the temperature range of the lower and/or upper processing temperature of the building material and/or the processing temperature of another building material to be processed with the claimed building material.

Abstract: The invention relates to a method for producing elements from or comprising a material with a high heat storage capacity, especially from or comprising a phase change material abbreviated in the following as PCM which are provided with a cover. The aim of the invention is to provide elements from or comprising PCM that are suitable for a wide range of applications and that can be processed without complications. For this purpose, PCM is supplied continuously or in a clocked manner, is covered with a tube and the PCM-filled tube is subdivided into tube sections or stored, for example wound up.

Abstract: A construction element for foundation drainage has an integral, flexible, and substantially water-impervious panel lying generally in a plane and formed with respective arrays of inner and outer bumps to opposite sides of the plane. The outer bumps form outwardly open outer flow channels on the outer face. Normally the panel is applied to a vertical foundation wall with the inner bumps bearing against the wall and the outer passages vertical and opening outward away from the wall. The inner bumps and outer bumps are offset to one another in the plane in two perpendicular directions. Thus the channels communicate also in these two directions and the element can be rolled up. A water-pervious and rigid filter sheet overlies the outer bumps, is spaced outward from the plane, and outwardly closes the channels so that water can filter through the sheet and flow down the channels.

Abstract: A sound-absorbing element of films has adjacent, cup-shaped recesses in the orm of a grid. The bottom surfaces of the films which are to be exposed to the sound field may be excited into dissipative vibrations when sound is incident thereon. The upper edges of the cup-shaped recesses are jointly covered by another flat material web. The bottom surfaces of the cup-shaped recesses are subdivided into bases by one or more crimp-shaped recesses, the depth of which is appreciably smaller than the depth of the cup-shaped recesses. The sound-absorbing element may be used in building, underground and tunnel construction and in vehicle construction.

Abstract: A tarpaulin composed of a sheet and edge reinforcing strips attached to the sheet along the edges thereof, only the strips being provided with perforations, at the intended locations of holding eyes, and the sheet being free of perforations so that the perforations in the strips present blind holes, whereby, for use, the sheet can be punched through only at the locations where holding eyes are required while the remaining edge portions of the sheet are left unperforated and thus unweakened.