Hérisson® rebar couplers: a range of high performance rebar couplers designed to provide optimal bonding with concrete. With unrivalled qualities of resistance, Hérisson® rebar couplers provide maximum safety to reinforced concrete. Concrete and steel have never been so intimately bonded!
The next generation of rebar couplers
Impact tests
HERISSON splices have successfully passed high speed tensile tests simulating an aeroplane crash (APC), a qualification stipulated as a necessary requirement by the ETC-C of mechanical coupling for construction of nuclear power plants.
Seismic tests
in compliance with ISO15835 standard
HERISSON+ couplers have successfully passed the low-cycle loading tests (oligocyclic test). This test, described in the ISO15835 standard, is divided in 2 parts, each corresponding to a seismic simulation:
Moderate earthquake: the construction remains serviceable after an earthquake.
Severe earthquake: the structure retains its total integrity during the earthquake to ensure people safety.
Fatigue testing
The combination of rolled thread on the rebar together with the Herisson coupler, being hot-forged, makes our splices highly resistant to fatigue loading.
Herisson splices have undergone without any damage over 5 millions loading cycles with a 300 Mpa maximum load and under a 100 Mpa stress range ie far more severe conditions than the example quoted in the NFA 35-020 standard.
Our certifications
HÉRISSON®
Hérisson® rebar couplers: a range of high performance rebar couplers designed to provide optimal bonding with concrete. With unrivalled qualities of resistance, Hérisson® rebar couplers provide maximum safety to reinforced concrete.
Hérisson+® and Hérisson+® mono
Hérisson+®, available from Ø 12 to Ø 40 mm with locknuts.
Hérisson+® mono, available from Ø 12 to Ø 40 mm.
Hérisson+® adjustment splices
Available from Ø 20 to Ø 40 mm.
FIRSTY®
The Firsty® range of couplers is the “economical” solution in the Hérisson product range. Manufactured in large quantities, the Firsty® coupler, with its simple form, offers a high-performance and affordable constructive system.
Available from Ø 12 to Ø 40 mm
ARMATURIS®
Our company was created to solve a technical challenge. Since 2009, we have researched and developed a new steel reinforcement splicing system called “Hérisson®”, a range of high performance couplers which offer maximum adhesion to concrete. Thanks to unequalled qualities of resistance, particularly in seismic conditions, our splices maximize the stability of concrete. In the nuclear industry for example, together with other outstanding engineered structures, the stakes are high!
THE HISTORY OF CONCRETE, THE EVOLUTION OF MECHANICAL COUPLERS
Jamy Gourmaud recounts how we have evolved over time from smooth rebar to Hérisson® mechanical couplers.®.
REFERENCES
Since 2009, Hérisson® couplers have been specified and used on numerous projects, in various different construction sectors
(nuclear, hydraulics structures,
civil engineering and engineered structures…) in France and in the United Kingdom.
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