Skip to main content

Positional couplers speed concrete reinforcement

Hy-Ten's new positional couplers are said to speed up site construction times by using reverse cut threads to link together both reinforcement bars by turning the sleeve in one direction. Richard Webster, director at Hy-Ten, said: "We launched our standard range of friction welded couplers just 12 months ago and the concept has been enthusiastically accepted by both engineers and contractors. The new positional couplers extend the application of this concept into areas where reinforcement bars are immovabl
April 16, 2012 Read time: 2 mins
The new couplers from Hy-Ten offer long life and durability.

Hy-Ten's new positional couplers are said to speed up site construction times by using reverse cut threads to link together both reinforcement bars by turning the sleeve in one direction

Richard Webster, director at 4896 Hy-Ten, said: "We launched our standard range of friction welded couplers just 12 months ago and the concept has been enthusiastically accepted by both engineers and contractors. The new positional couplers extend the application of this concept into areas where reinforcement bars are immovable."

Friction welding is said by Hy-Ten to be a new concept in construction, but the technology has been used in aerospace and automotive applications, where joints formed by this method are subject to extreme stress and high workload.

Hy-Ten said its machines securely hold the bar while rotating the coupler at high speed so that the mating surfaces plasticise and achieve a low fusing temperature, creating a joint that is far stronger than those derived from conventional welding.

The new HT (P) and HT (EP) couplers in the 16mm and 40mm diameter range have been fully tested and certi ed by CARES, the certi cation authority for reinforcement steel.

For more information on companies in this article

Related Content

  • The Lessons of the Genoa bridge collapse
    April 23, 2019
    The partial collapse of the Polcevera viaduct, better known as the Morandi Bridge, has prompted debate regarding the technical and administrative aspects of maintaining road infrastructures. We discussed it with the engineer Gabriele Camomilla, former Director of Research and Maintenance of the Società Autostrade, who coordinated the only major structural intervention performed on the bridge, carried out in the early 1990s
  • Singapore F1 racetrack uses Shell technology
    July 20, 2012
    The Singapore Grand Prix at the end of September was a race to remember for many reasons. Formula One's first night race saw excitement on the track, and it was a test for the high-performance surface containing Shell premium grade bitumen binder Cariphalte Racetrack. The inaugural Singapore Grand Prix was staged on a new street circuit and is open to regular motorists. Work on the track started in April 2008 and was completed in just two months. Because the road circuit is used for everyday traffic, the ne
  • New developments in road recycling and milling
    June 11, 2019
    New developments in road recycling and milling will allow contractors to remove old surfaces more quickly and efficiently – Mike Woof reports
  • New methods allow concrete testing on the spot
    July 20, 2015
    This month we look at two new methods which are allowing concrete to be tested on the spot, and [over the page] we catch up on the latest news from concrete testing equipment suppliers - Kristina Smith writes Sometimes test results can be very bad news. If the concrete pavement or bridge abutment has already been poured, and if the concrete does not meet the specification, the outcome could be very expensive remedial work.