NavBar.GIF (11206 bytes)
Duraset

UNIBAR

A fully threaded bar with superior tensile strength
(Click picture for larger View)

Overview of UNIBAR

  • The cold form thread pattern on the UNIBAR gives closer tolerance between thread and nut... (no 'rattle fit') and greater tensile strength. These features combined provide improved load retention capability, compared to conventional 'hot-rolled' fully-threaded bar.
  • The spiral action of the bar improves the mixing and pushes the resin to the back of the hole.
  • The clearly-defined thread design is more robust and less prone to damage.
  • UNIBAR may be used as a mechanical or resin/cement anchored bolt.
  • No reduction in strength as a result of threading; full cross sectional area is utilised.
  • Various tensile strengths are available to suit a range of applications.
  • The system allows for re-tensioning should scaling take place.
  • Consistent quality adds to overall safety.

Applications

  • As a Grouted reinforcing tendon using either cement or polyester resin.
  • In conjunction with an expansion shell, as a mechanically anchored rock stud.
SPECIFICATIONS
Lengths Studs and bolts are available in standard lengths from 0.6 m to 3.0 m in increments of 0.3 m. Non standard lengths are available on request.
Available Sizes All threads are formed by a cold rolling process and are available in either left or right handed threads.
Nominal Diameter Major Diameter Pitch
14.5 mm 16.5 mm 5 mm
16.0 mm 18.0 mm 5 mm
20.0 mm 22.0 mm 6 mm
Mechanical Properties Proof
Strength (Rp0.2)
Mpa (Min)		 Ultimate Tensile
Strength
Mpa (Min)		 Elongation
%
(Min)
14.5 650 700 7
16 700 750 8
20 700 750 8

Copyright © 2008 Duraset
Manufacturer of Rock Bolts, Studs & Mechanical Anchors

English 
French
Spanish