Keyway Splice Box


A Concrete Reinforcement Continuity System

The use of reinforcement continuity strip systems or ‘pull-out bar’ systems has been widespread in European markets for over 30 years. It is becoming a very common method of ensuring continuity of reinforcement across construction joints in concrete. The system design includes lapping reinforcement to provide a splice and connection.

Meadow Burke has been involved in manufacturing of the Keyway Splice Box since it’s original introduction to the US market in 1992. The Keyway Splice Box system is a safe and cost effective reinforcement method that also provides time and labor savings in many applications. The system is custom made to meet each engineers reinforcement detail, eliminating unnecessary labor on site.

The Keyway Splice Box system consists of unique, high yield reinforcing steel, housed in a galvanized steel carrier unit. The unit ends are sealed to prevent leakage. The reinforcement used is available in #4, #5 or #6 and is equal to ASTM A615 Grade 60 and meets ACI 318-11. The system is assembled in a controlled factory environment in order to provide the quality demanded from a harsh construction environment. If your project requires larger diameter rebar refer to Keyway Coupling Box on Page 5.

The units are used on site by nailing to the formwork or wire tied to the main reinforcement, prior to a concrete pour. After concrete is poured and the formwork is removed the lid is easily removed to expose ready to use lap splice bars. The bars are bent out the case to provide an easy lap splice to the main reinforcing steel and subsequent concrete pours.

The case design offers an efficient key and requires no further joint preparation. The dovetail shaped casing ensures that the product remains embedded in the structure when removing the formwork, the concrete case become a composite material. The case remains in the joint and is filled with concrete on the subse

Keyway Splice Box Systems may be used in most concrete construction joints. The systems are being utilized in high rise residential , hotels, office towers, hospitals, prisons, solar energy, wind towers, water treatment, concrete pavement, bridge construction, and many other types of projects. Typical joint applications include.

  • floor slabs
  • Walls
  • precast elements
  • stairwells
  • beams
  • bridge decks
  • corbels
  • diaphragm walls
  • tilt-up panels
  • jump forms
  • brick support
  • concrete paving/slab on grade