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ARBOX® Joint Reinforcement

ARBOX® Joint Reinforcement is a ready-to-install system for creating stiff concrete casting joints of reinforced concrete elements. ARBOX® can be attached to formwork without having to penetrate or make other adjustments to the formwork. ARBOX® Joint Reinforcement is suitable for creating a wide range of connections, such as wall-to-wall, column-to-wall, and wall-to-slab.

The pre-bent rebars of ARBOX® are hidden in a galvanized steel box and can be straightened when needed. This system increases safety on the construction site and enables fast construction of connections in both cast-in-situ and precast structures.

ARBOX® is designed according to Eurocode. It enables longitudinal and transverse tensile forces and shear forces to be transfered to the joint. Shear resistance transverse to the joint can be increased significantly by combining ARBOX® with shear reinforcement made with PSB® Punching Reinforcement System.

Based on the required resistance and dimensions, the suitable ARBOX® model can be selected using the tables in the ARBOX® Joint Reinforcement Technical Manual. ARBOX® is available for rebar diameters of 8 mm, 10 mm, and 12 mm.


With type A of ARBOX® Joint Reinforcement, the rebar loops are cast into the structure during the first construction phase. In the second construction phase the steel cover is removed and the pre-bended rebars are straightened. The straightened rebars should overlap with the main reinforcement of the connected concrete element.


Detailed technical information

Comprehensive product information like resistances, required supplementary reinforcement, concrete grades, limitations of use etc. can be found within the Technical Manual. Product details may be country-specific. For design, always use product information that is localized for design's destination country. Country specific Technical Manuals can be found under Design Tools -page, or from website of the country in question.

Contact us

Štefan Gavura

Product Manager

Punching Prevention Systems, Rebar Coupling Systems

Mob. +421 911 250 080