Drossbach Ducting

Drossbach Duct is manufactured in Christchurch supplying the South Island while our Auckland branch is able to supply to our North Island customers.

Drossbach Duct is used as a duct former for a variety of precast and cast – insitu concrete work including:

  • Precast connectors
  • Service penetrations
  • Formers for starter bars
  • Post-tensioning ducts

The semi-rigid metal duct is strong and durable for casting into concrete and is easily tied into position adjacent to reinforcing steel. Standard grout injection tubes, grout vents or blanked ends can be supplied on request.

Key features of Drossbach:

  • Duct sizes from 33mm to 130mm ID as standard.
  • Fabricated from 0.30mm thick galvanised strip steel
  • Cutting service provided (charges applicable).
  • Grout and vent tubes, blanked end – available on request (charges applicable).

Contact your local BBR Contech office to discuss your specific requirements or email [email protected] for any orders.

BBR Case Studies

Old Arts Building gets a new lease of life
Case Studies FRP Post-tensioning Seismic Strengthening

Old Arts Building gets a new lease of life

The Old Arts Building in Auckland University’s campus is listed as a Category 1 Historic Place
Read More
First use of BBR CMW Coupler on bridge project in Northland
Bridges Case Studies News Post-tensioning

First use of BBR CMW Coupler on bridge project in Northland

BBR Contech has undertaken the first installation of BBR's new CONA CMW coupler on a bridge strengthening project in Northland.
Read More
Toru Apartments PRESSS, Queenstown
Case Studies Post-tensioning

Toru Apartments PRESSS, Queenstown

Naylor Love were engaged by New Ground Capital to construct a new 7 storey apartment block in Frankton, Queenstown. The building was designed by Kirk Roberts using the PREcast Seismic Structural System (PRESSS). BBR Contech was involved early in the project as the Post Tensioning Specialist working through constructability issues with the building contractor.
Read More

Sign up to our newsletter

Get Your Quote or Call: +64 9 274 9259

One of our friendly staff members are here waiting to help you.