Rock Bolts – Solid Bar
| Physical Properties | Minimum | Typical |
|---|---|---|
| Yield Strength | 540MPa / 244kN | 640MPa / 289kN |
| Tensile Strength | 625MPa / 282kN | 700MPa / 323kN |
| Calculated Shear Strength | 169kN | 193kN |
| Elongation (After Fracture) | 6% | 20% |
| Tensile Strength of Threaded End | 245kN |
| Mass Per Metre | 3.55kg |
| Bar Core Diameter | 27.0mm |
| Major Bar Diameter | 23.0mm |
| Cross Sectional Area | 452mm² |
| Rolled Thread | 1" UNC |
Key Features
- The Solid Deformed Bolt is manufactured from hot rolled reinforcing bar having rib deformations generally in a "herringbone" form.
- The Bolt has a 1" UNC thread cut at one end and 4 paddle indents at the other end.
- The solid deformed bolt is usually fully encapsulated with resin anchors, but can be effectively used with cementitious grouts.
- Corrosion protection may be provided by hot dip galvanizing or alternative coatings.
Installation Guide Lines
- 33-35mm hole diameters are preferred when incorporated with the DSI Underground Paddle
- Hole depth is critical. Hole depth should be shorter than the bolt to allow for the height of the washer and nut.
- It is important to follow the resin anchor recommended mixing and hold times as printed on the resin anchor cartons. DO NOT OVER MIX.
Standard Lengths & Packaging
- Standard bolt lengths range from 600 to 3000mm in 300mm increments.
- Non-standard requirements are available by negotiation.
- 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.
