24mm VIDEX Chemical Anchor Bolt

Physical Properties	Minimum		Typical
Yield Strength	745MPa	250kN	775MPa	260kN
Ultimate Tensile Strength	890MPa	300kN	935MPa	315kN
Calculated Shear Strength	200kN		210kN
Standard Elongation	12%		12%
Uniform Elongation			3%
Mass Per Metre			2.64kg
Bar Core Diameter			20.7mm
Major Bar Diameter			22.5mm
Bar straightness to AS 1442-1991
Cross Sectional Area			350mm²
Rolled Thread M24x3.0mm Pitch

General Features

Manufactured from round bar the Videx bolt is cold worked to provide an improved form of left hand deformations and increased yield strength.
The Videx bolt rib pattern actively assists with mixing the chemical anchors during installation.
The rolled thread strength nominally equals the column strength of the bar.
The Videx bolt provides stiffer mechanical characteristics than the equivalent High Strength Bolt.
The 24mm Videx bolt is designed to be used with chemical anchors (refer to Section F), but can be effectively used with cementitious grouts.
Corrosion protection may be provided by hot dip galvanizing (refer to Section G). Alternative coatings are available by negotiation.

Installation Guidelines

26-27mm hole diameters are preferred. If larger diameter holes are be used refer to "Posimix" bolts on page A1.10.
Hole depth is critical. Hole depth should be shorter than the bolt to allow for the height of the washer and nut.
After insertion of the chemical anchors the bolt is rotated through the anchors while being pushed to the back of the hole.
It is important to follow the chemical manufacturer’s recommended mixing and hold times as printed on the chemical anchor cartons. DO NOT OVER MIX.
For further details of installation procedures refer to DSI's "Practical Guide to Rock Bolting."

Standard Lengths & Packaging

Standard bolt lengths range from 600 to 3000mm in 300mm increments.
Bolts are packaged in bundles with threads protected by heavy duty polyethylene bags.
Bolt fittings, such as nuts, anti-friction washers and domed balls, are supplied fitted to rock bolts in the configuration requested.

Notes

Only DSI rock bolt components should be used to enable the optimum performance of the bolt system to be obtained.
DSI Mining Products Division is Quality Assured to ISO 9001:2000, Registration No.QAC/R61/0315.

PRINTED December 2006: All dimensions, weights, quantities and specifications are those applicable at the time of publication and may be amended from time to time.