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

Inner linings are prefabricated elements used for on-site lining of drains and manholes. They usually serve to improve corrosion protection. Inner linings must be fixed durably and tightly to the drai

Infiltration elements form part of the property drainage system. They serve to store or retain rainwater. If infiltration elements are used on a property, it must be ensured that no dangers to the adj

Central heating appliances ( Sammel-Feuerstätten ) are heating appliances that heat a medium (usually heating water) and provide warmth to a building via the ductwork and radiators. They are not to be

The category of 'free-standing chimneys' also includes chimneys that are restrained or supported laterally or mounted on top of another structure. Special constructions

The work area 'Strengthening of concrete structures with bonded reinforcement' comprises kits for retrofitting aimed at increasing the flexural and shear resistance of existing concrete structures (st

Concrete technology

Concrete constituents

Resilient, textile and laminate floor coverings are covered by EN 14041:2004/AC:2006 and include, amongst others: Polyvinyl chloride (PVC) and rubber floor coverings: This type of floor covering usual

Other concrete construction techniques include, e.g., knife-edge bearings and ring beams. A knife-edge bearing is used to introduce vertical and horizontal forces into sheet piling profiles and steel

Universal adhesives are used across large surface areas to bond floor coverings to the substrate. They can consist of one or two components. Acrylate dispersions, epoxides, polyurethanes, silane-modif

DIN 4426 stipulates that anchoring devices for personal fall protection equipment as well as rope and rail systems need to be provided for building maintenance. Since there are no product standards or

Precast concrete products are products made of concrete, reinforced concrete or prestressed concrete which are manufactured at a location other than the final place of use. Precast concrete products a

These floor systems are composed of prestressed precast slabs finished with a structurally contributing in situ concrete overlay. Construction techniques for floors and walls, precast concrete product

When applying floor construction techniques comprising lattice girders, the floor is constructed from precast concrete slabs, lattice girders as reinforcement and an in situ concrete overlay. Precast

Surfaces for sports areas are single- or multi-layer floor systems with possible sport-relevant or protective features as well as other technical properties. Selection of the design, including the cov

Metal products and construction techniques

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