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