Concrete constituents

Pile couplers are used for connecting segments of prefabricated foundation piles when the required pile length exceeds the maximum as-delivered lengths. Earth work and foundation engineering

Concrete constituents

Composite columns consist of a combination of steel sections and concrete or reinforced concrete. The steel sections are completely or partially embedded in concrete. Composite columns have much highe

A composite beam consists of a combination of a steal beam andconcrete or reinforced concrete connected in a shear-resistant manner so that they act together as a single structural member. Composite b

A composite floor consists of a combination of profiled steel sheeting and concrete (and additional reinforcement, where applicable) connected in a shear-resistant manner so that they act together as

Corrosion protection systems are applied to the surfaces of metallic materials of low corrosion resistance. The primary goal is to extend the fields of use of such materials to more corrosive environm

This work area covers load-bearing plastic elements for swimming pools and water slides, in particular elements made of fibre-reinforced plastics. Plastics construction

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

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 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 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 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

Plastic/sealing sheets and membranes for use in storage, filling and handling facilities for substances hazardous to water (SHF facilities) are manufactured to a specific thickness, laid loosely on th

Coating materials as well as coating and sealing systems are used for sealing collecting trays, collecting rooms and surfaces in storage, filling and handling facilities for substances hazardous to wa

Fire-retardants serve to improve the reaction-to-fire performance of solid timber or wood-based materials treated with them. Through treatment with the fire-retardant, the solid timber or wood-based m

Fire-protective fabrics coated with an intumescent material are used to wrap electrical cables and services to improve their reaction-to-fire performance and/or to impede the breakout and spread of a

Sanitary appliances refer to those parts of a sanitary installation through which accumulating rainwater, foul or waste water is fed into the property drainage system (e.g. WCs, urinals, showers, bath

Non-return valves serve to prevent backflow of rainwater or wastewater from the connected sewer system into the parts of the property drainage system lying below the backwater level. Equipment for dra

Single-room ventilation units ensure a controlled air exchange between the building interior and the outside environment which is independent of the ventilation behaviour of the occupants. Ventilation

A prefabricated stair system consists, e.g., of steps, landings, stringers, handrails, balustrades and fasteners. The following stair systems are distinguished: stairs supported by load-bearing bolts,

Pipes, fittings and inspection chambers are parts of rainwater or waste water drains for property drainage. They serve to ensure the safe discharge of surface water and/or waste water from the propert

Connectors (clamp connectors and/or couplings) for drains are designed to connect pipework parts such as pipes and fittings permanently such that no waste water can escape from the joints. In the case

Sealants for drains serve to prevent, in connection with pipework parts such as pipes and fittings, the leakage of discharged waste water. In the case of underground drains, the sealant also ensures t

Trenchless rehabilitation techniques are increasingly being applied in wastewater engineering today. For the rehabilitation of underground supply pipes and drainage pipes, techniques such as lining wi