Heavy-duty fastening for concrete and masonry
Chemical fastening is a fastening technology that enables heavy-duty fastening in concrete and masonry using a compound mortar (usually consisting of 2 components) in combination with an anchor element (usually threaded rod or rebar). Because of their versatility, chemical fastening solutions come into their own whenever conventional fastenings fail. The great advantages of chemical fastening are the flexibility and the anchoring without expansion forces. This enables anchoring in sensitive materials such as masonry and fastenings in concrete close to the edge of the component. Chemical fastening solutions are characterized in particular by their high load values and cover a very wide range of applications. In the field of chemical anchoring technology, a basic distinction is made between composite mortar systems (cartridge) and cartridge systems (glass cartridge or foil bag). However, both anchoring techniques are based on the same principle. The differentiation of a cartridge system compared to a cartridge system results only from the product application. However, cartridge systems are much more efficient. The advantages are varied and convincing. A significant reason results from the variety of applications. Depending on the formulation, reaction resin mortars are suitable for applications in non-cracked concrete, cracked concrete, masonry and for subsequent reinforcement connections. In comparison, cartridge systems only represent applications in cracked and non-cracked concrete and are just as inflexible in use as they are reusable. Cartridge systems, on the other hand, work flexibly and in a multi-layered, solution-oriented manner. The company Chemofast Anchoring has therefore been successfully using this technology for almost forty years, is considered a pioneer in this field and is constantly developing its systems. The focus of the work is on the development of new resins and the constant optimization of cartridge systems.