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Membrane structures
Membrane structures are composed of thin, fabric-like materials. Due to their low self-weight, they are suitable for spanning large areas. They are used, e.g., as space-dividing, thermally insulating -
Sandwich panels
A sandwich panel consists of two faces and a supporting core. The supporting core is made of a thermally insulating material. It is connected to the two faces via an interference fit such that the thr -
Anchor bolt steels
Anchor bolt steels are manufactured in hot rolling mills (by quenching, cold-drawing or additional tempering, alone or in combination) in straight lengths. The steel rod surface is ribbed or threaded. -
Strengthening and repair of timber structures
Reaction resin concretes or reaction resin mortars are used for strengthening and repairing timber structures, where applicable in combination with textile-reinforced rebars. Timber construction -
Prestressing steel bar
Prestressing steel bars are used in various prestressing systems for concrete structures. Prestressing steel bars are manufactured in hot rolling mills (by quenching, cold-drawing or additional temper -
Prestressing steel strands
Prestressing steel strands are used for prestressing structures. A prestressing steel strand is made from a number of wires twisted together in the same direction and with the same lay length. The str -
Prestressing steel wire
Prestressing steel wire is used for prestressing concrete structures. Prestressing steel wire is made of wire rod which is either manufactured by cold-forming and subjected to a finishing thermo-mecha -
Reinforcing steel in coils
Reinforcing steel in coils is hot-rolled and cold-drawn reinforcing steel in coil form. It is manufactured in coils or wound on reels at the manufacturing plant and then straightened, bent and cut or -
Reinforcing steel bars (rebars)
Reinforcing steel bars, or rebars for short, are reinforcing steel in the form of straight bars used to reinforce concrete members. The approval area only concerns rebars which deviate significantly f -
Membranes for use as roof or wall underlay
Membranes for use as roof or wall underlay are installed underneath the roofing of pitched roofs or underneath the external wall cladding. They serve as an additional rainproofing measure to prevent t -
Flexible sheets for concrete waterproofing
Flexible sheets for concrete waterproofing are used as an additional waterproofing measure for waterproof concrete systems. For this, the flexible sheet is inserted into the formwork prior to concreti -
Joint sealing tapes for windows and facade areas
Joint sealing tape is used to seal joints between windows and facades or facade joints for protection against wind and driving rain. It is usually compressible to compensate for temperature-induced fa -
Punching shear reinforcement
Punching shear reinforcements are special reinforcements used in place of stirrups or bent reinforcements to increase the punching shear resistance of beam supports for reinforced concrete floor slabs -
Soil injection products
Soil injection products are products used for injection into the subsoil as a pore injection for sealing soil for geotechnical purposes (construction pit sealing). Earth work and foundation engineerin -
Liquid applied roof waterproofing kits
Liquid applied roof waterproofing kits are usually multi-component systems and are applied in liquid form in multiple layers. After curing, they form the roof waterproofing. Waterproofing of buildings -
Curtain injections
Curtain injections are used for retrofit waterproofing of damp structures, e.g. basements. For this, a gel is introduced into the surrounding soil (or groundwater), where it hardens. Waterproofing of -
Joint seals for elements, e.g. made of waterproof concrete
Joint seals are mainly used for elements made of waterproof concrete in accordance with the DAfStb guideline on waterproof concrete structures to seal the joint against soil moisture as well as pressu -
Waterproofing slurries
Waterproofing slurries are used for waterproofing of buildings. Differentiation is made between mineral-based waterproofing slurries (rigid or flexible) and polymer-modified thick coatings. In additio -
Drainage systems
Drainage systems serve to drain rainwater or surface water from buildings in a defined manner. They are used below roof vegetation or are installed below ground around structures. There are linear and -
Bridge deck waterproofing
Bridge deck waterproofing protects the bridge structure and/or any components or structures underneath it from water ingress. Bridge deck waterproofing usually consists of multiple layers, such as a p -
Expansion joints for road bridges
Expansion joints for road bridges are designed to accommodate movements between the bridge segment and bridge abutments. The dimensioning of the joints is derived from the required movement capacity a -
Polymer-modified bitumen thick coatings
Polymer-modified bitumen thick coatings are used for waterproofing elements in contact with soil. Waterproofing of buildings -
Scaffold anchors
Scaffolds are temporarily connected to the structure with scaffold anchors. A scaffold anchor consists of a part permanently embedded in the concrete (e.g. threaded plate or anchor plate), the connect -
Headed bolts, headed studs
Headed bolts are made of round steel or reinforcing steel bars. The bars are headed at one end. A thread is rolled on or cut at the other end of the bar. The end can also be prepared for welding on of -
Anchor channels
An anchor channel is a fastening system that consists of a channel profile with permanently attached anchors and channel bolts. The channel profile with the anchors is fastened to the formwork prior t