With the RebarConnect FIS RC II, the Fischer Group of Companies is introducing an injection mortar that makes post-installed rebar connections, safe and economical. Fischer also offers a highly reliable injection mortar with the FIS EM Plus and its new, additional European Technical Approval (ETA), which allows post installed rebar connections to be designed in accordance with the new TR 069 Technical Report by the European Organization for Technical Approvals.
Proving their worth
Post-installed rebar connections have proved their worth in everyday construction, be it for connecting new walls, columns or stairs, closing existing floor openings, extending floor plates, concrete covers or foundation extensions. Installers frequently use heavy-duty chemical fixings for applications such as these during new builds and renovations. The fixing specialist Fischer provides reinforced concrete construction specialists with a secure and efficient solution for post-installed rebar connections with an ETA with its new RebarConnect FIS RC II vinyl ester hybrid mortar. The ETA covers applications with reinforcing bars with a diameter of 8 to 32 mm embedded at depths of up to 2 m.
Short processing and curing times enable quick work progress in drill holes created either with hollow or hammer drills. Possible temperatures of -10 °C to +40 °C in the anchor substrate according to the ETA allow for flexible and universal applications. FIS RC II has also received approval for post-installed rebar connections, with a service life of up to 100 years. The injection mortar’s ETA enables designs up to fire resistance class R 180. FIS RC II is available in container sizes of 360 ml and 825 ml shuttle cartridges. The battery-operated dispensers FIS DB S Pro and FIS DB SL Pro are suitable for the two cartridge sizes and complete the product range.
A strong compound for a firm hold
Fischer offers a versatile solution for embedding reinforcing bars in concrete in the long term.They do this with the FIS EM Plus injection mortar. In addition to ETA-17/1056 and its ICC approval, its use for post installed rebar connections is now regulated by ETA-22/0001 – Post-installed reinforcing bar (rebar) connections with improved bond-splitting behavior. This allows structural engineers to plan post-installed rebar connections with the Fischer FIS EM Plus in compliance with both DIN EN 1992-1-1 (EC2) with national annex and with the TR 069 Technical Report by the European Organization for Technical Approvals. This is based on ETA-22/0001. The new design method complements the previous procedure in accordance with EN 1992-1-1 (rebar theory) and EN 1992-4 (anchor theory) and closes the gap between, or rather combines, the rebar and anchor theories.
The core advantage is the TR 069 permits the design of post-installed, rigid rebar connections that do not have to be carried out as overlapping joints (with continuing reinforcements in existing members). These applications are therefore covered by regulatory requirements. The special design method covers rigid connections under static and quasi-static loading, even in cases where there is no starter bar in the provided existing member and only relatively short embedment depths are possible. This can be achieved as the bond stresses that may be applied for the design according to TR 069 are significantly higher than under EC2 part 1-1. Likewise, the TR 069 design concept also covers both ultimate and serviceability limit states.
In general, the FIS EM Plus is a safe choice and a versatile solution to permanently and securely transfer heavy loads into concrete, even under extreme conditions. According to the ETA, it has a service life of up to 100 years. The injection mortar also received approval for applications under seismic loading. Additionally, you can use it in diamond-drilled drill holes without requiring additional roughing up.
Services for post-installed rebar connections
Planners and users also have access to a reliable and safe program for designing post-installed rebar connections with the REBAR-FIX module from the Fischer FiXperience software suite. Depending on the on site options and requirements, the REBAR-FIX program enables verification in line with various standards and guidelines with verifiable printouts. Fischer’s technical field service and technical hotline are available in case planners and users have any queries. The Fischer Academy also offers e-learning training on post installed rebar connections through live online and in-person seminars. The program contains regular training sessions that allow participants to obtain a certification from The German Institute for Structural Engineering upon completion. German companies and tradespeople require this certification in order to receive authorization to execute post-installed rebar connections.
The Fischer Group of Companies
The Fischer Group of Companies hast its headquarters in Waldachtal in Germany’s northern Black Forest. The group generated sales of 1.14 billion euro in 2022 with a worldwide staff of 5,600 employees. The family-owned company operates 50 subsidiaries in 38 countries and exports to more than 120 countries. It includes the five divisions: Fischer fixing systems, Fischer Automotive, Fischertechnik, Fischer Consulting and Fischer Electronic Solutions. Fischer fixing systems is the technological market leader in key areas of fixing technology. Fischer offers products that deliver technical perfection to a wide range of customers. These range from the do-it-yourselfer to tradespeople to key account partners.
The automotive department, Fischer Automotive, manufactures high-quality parts for vehicle interiors. The company is highly competent in the plastics processing segment and is an important partner for the automotive industry. Its range of products includes air vents, cupholders, trays and multi-function components.
With its construction kits, Fischertechnik is active in both the toy making and the educational sector. Fischertechnik is one of the last remaining toy makers to exclusively develop and produce in Germany.
Fischer Consulting evolved from the competence developed in the company itself, which includes the Fischer Process System with its central aim of permanent improvement for the ultimate benefit of the customer. Additionally, Fischer Consulting advises small and medium-sized businesses, government agencies and major companies on their path towards lean and efficient processes.
Fischer Electronic Solutions develops and manufactures custom electronic solutions. The company also develops, produces and distributes custom and capacitive touch systems such as multitouch solutions made of glass and the corresponding controller units. Fischer manufactures all electronics in-house.