Construction Fixings

Over the last few years Tecfi has concentrated on the development of its range of chemical anchors, strongly believing in the advantage of reducing edge distances and spacing, without pre-stressing the base material.

As part of this concentration, Tecfi SpA is proud to have been one of the first companies to achieve the C2 performance category on a styrene-free dual component pure epoxy chemical anchor for use with threaded rods from M16 to M24, according to the Annex E of the ETAG 001. The SWE01 epoxy resin is

ETA-CE Certified in Option 1 for cracked concrete, for use with threaded rods from M12 to M24, and Option 7 for non-cracked concrete, for use with threaded rods from M8 to M30, according to ETAG 001 – Part 1 and 5. In addition, the epoxy resin also achieved a Technical Report (TR 023) for post installed rebar connections from 8mm up to 32mm in diameter.

Furthermore, Tecfi has achieved the C2 performance category on the DGE02 styrene-free dual component vinylester resin, for use with threaded rods from M12 to M16 and C1 performance category for use with threaded rods from M12 to M20. In addition, DGE02 also achieved ETA-CE for use with rebars from 8mm to 32mm in diameter with exposure under fire and in seismic areas. These last achievements consolidate the very high status of the DGE02, already certified in ETA-CE Option 1 for use in cracked and non-cracked concrete with threaded rods from M10 to M20 and ETA-CE Option 7 for use in non-cracked concrete with threaded rods from M8 to M30.

“These upgrades were welcomed in the market with very big enthusiasm,” commented Tecfi. “Today customers can use, in seismic areas, a vinylester chemical anchor with standard and easy to find threaded rods or rebars and not just with very special and expensive anchor rods.”

Tecfi has also developed two varieties of vinylester resins that are suitable for extreme climates – DGE12 and DGE22 – which also come with the same high grade certifications. The DGE12 resin is suitable for low temperatures and guarantees fast curing and the DGE22 resin is suitable for high temperatures and guarantees a slow curing. DGE02, DGE12 and DGE22 can also be used in wet concrete and flooded holes, except for rebars installation and with seawater.  DGE02 is available in 300ml and 400ml cartridges, while DGE12 and DGE22 are available in a 400ml cartridge.

To add to its ever increasing range of chemical anchors, at the beginning of 2020 Tecfi launched the DGE03, a styrene-free dual component epoxy acrylate vinylester resin, that achieved the ETA-CE Option 7 for use in non-cracked concrete with threaded rods from M8 to M16 and rebars from 8mm to 16mm in diameter. Moreover in 2017 Tecfi introduced EHE01, a dual component vinylester resin in glass capsule, that achieved the ETA-CE Option 7 certification for use in non-cracked concrete, with threaded rods from M8 to M30. EHE01, which can also be installed in wet concrete, avoids any waste on the jobsite thanks to the pre-sized capsule.

Tecfi has also invested huge resources in its polyester resins, including its dual component polyester resin, under range code DGE00, available in 300ml and 400ml cartridges. DGE00 achieved ETA-CE for use in solid masonry (use category b) and hollow or perforated masonry (use category c) with threaded rods from M8 to M12, ensuring a very good compromise between quality and price.

Also available is the DGE01 styrene-free dual component polyester resin, which is now an extremely flexible product – suitable for a very wide range of base materials. It has ETA-CE Option 7 certification for use in non-cracked concrete with threaded rods from M8 to M16, according to ETAG 001 – Part 1 and 5. This adds to the ETA-CE certification for use in solid masonry (use category b) and hollow or perforated masonry (use category c) with threaded rods from M8 to M12 certifications that the DGE01 had already achieved. DGE01 is available in 300ml and 400ml cartridges.

Finally, Tecfi also offers a wide range of studs for chemical anchors with nut and washer slotted dog point steel bars in Grade 8.8 (range code DAT02), 45° sliced steel studs in Grade 5.8 (range code LN01), flat ended steel rods in Grade 5.8 (range code DA02), studs with hex shank and double 45° cut in steel (5.8 grade, range code DAF02) and A4-70/AISI 316 stainless steel (range code DAF72).

All Tecfi chemical mortars suitable for use in concrete are included in TADS – Tecfi Anchor Design Software.