24mm Chemical Anchor Bolt with Forged Integral Head

 Physical Properties

 

 

Mass Per Metre2.92kg
Bar Core Diameter21.7mm
Cross Sectional Area of Bar370mm2
Major Bar Diameter23.2mm
Bar Straightness to AS 1442-1991
Rolled Thread M24x3.0mm Pitch
Minimum Typical
  Yield Strength600MPa220kN650MPa 240kN
Ultimate Tensile Strength850MPa310kN920kN 340kN
 Calculated Sheer Strength205kN225kN
 Standard Elongation13%15%
Uniform Elongatio
8%

 

 

General Features

  • Manufactured from a special hot rolled deformed bar designed by DSI and commonly known as "Left Hand Anchor Bar".
  • The DCP Bolt is designed to be used with cementitious grouts.
  • The bolt is provided with an expansion shell for preloading, thus allowing for tunnel or mine heading to advance without immediate grouting.
  • Grooved anchor nut allows for grouting after preloading.
  • Anti-corrosion tube over full length of bolt for long life term protection.
  • Available in differing material forms to suit design requirements.
  • Australian Patent 2003231588.

Installation Guidelines

  • Drill 43-45mm hole diameters. The drill hole length must be longer than the bolt by approx. 50mm.
  • Domed washer plate is fitted to the bolt.
  • The bolt is inserted into the hole.
  • After placing the bolt in the hole to it’ s full length, the bolt is then rotated to set the expansion shell to the required tension.
  • Attach grouting adaptor to anchorage.
  • Mix 0.33 to 0.35 W/C grout. Pump grout. Grout is pumped through the inner annulus to the bolt end and returns along the outer annulus.
  • Terminate grouting with visible grout return.
  • Detach adaptor and proceed to next bolt.

Standard Lengths & Packaging

  • Standard bolt lengths range from 1200 to 6000mm in increments of 300mm
    Non-standard lengths are available upon request.
  • Bolts are packaged in bundles with threads protected be heavy duty polyethylene bags.
  • All bolts are supplied fitted with accessories with the exclusion of washer plates, which are supplied loose.

Notes

  • DSI's Mining Products Division is quality assured to ISO 9001:2000, Registration No.QAC/R61/0315