Technology
SUPERIOR TECHNOLOGY
Our reinforced concrete jacking pipes are produced in a modern facility using a Variant (a large diameter vertical vibration pipe making machine). The Variant was engineered in Germany using the latest in German technology for the vertical vibration casting of reinforced concrete jacking pipes. This pipe making machine works “underground” vibrations for compacting concrete and is generated by a central vibrator that is connected to the core via a hydraulic clamping device. It is controlled by a Siemens memory programmable electronic control system, which is partially sequence automated.
There are a number of key and special characteristic qualities that differentiate the “Variant” from other reinforced concrete jacking pipe machines;
Powerful and reliable central vibrator.
Fast mould changes due to hydraulic clamping technology.
Highly versatile product range.
Highly compacted quality pipes regardless of product size.
INTERNAL TESTING PROCEDURES
All materials and finished products are subjected regular testing. Tests and applicable standards are displayed in the tables below;
MATERIALS
| Description | Reference Standard |
| Cement | AS 3972 |
| Aggregates | AS 2758.1 |
| Water | AS 1379 |
| Admixture | AS 1478.1 |
| Steel Reinforcement | AS 4761 |
| Rubber Seals | BS EN 681.1 |
| Concrete Strength | To nominated Load Class |
GEOMETRICAL
| Geometrical Characteristics | Reference Standard | Sampling |
| Internal Diameter | AS 4058-2007 Clause 3.3.3 | Every Pipe |
| External Diameter | AS 4058-2007 Clause 3.3.4 | Every Pipe |
| External Diameter | AS 4058-2007 Clause 3.3.4 | Every Pipe |
| Wall Thickness | AS 4058-2007 Clause 3.3.5 | Every Pipe |
| Internal barrel length | AS 4058-2007 Clause 3.3.6 | Every Pipe |
| Straightness | AS 4058-2007 Clause 3.3.7 | Every Pipe |
| Sqareness of ends | AS 4058-2007 Clause 3.3.8 | Every Pipe |
FINISHED PRODUCT
Description | Reference Standard | Sampling |
| Internal Diameter | AS 4058-2007 Clause 3.3.3 | Every Pipe |
| External Diameter | AS 4058-2007 Clause 3.3.4 | Every Pipe |
Crushing Load | ||
| Proof Load | AS 4058:2007 Clause 4.2 | 5 pipes per batch |
| Ultimate Load | AS 4058-2007 Clause 4.3 | When specified |
Hydrostatic Pressure Test | ||
| Watertightness(90kPa) | AS 4058:2007 Clause 4.4 | 5 pipes per batch |
Concrete Cover to Reinforcement | ||
| Concrete Cover | AS 4058:2007 Clause 3.3.2 | 2 pipes per day(At Random) |
Flexible Joint Assembly | ||
| Flexible Joint Assembly | AS 4058:2007 Clause 4.7 | 1 pair each batch |
| Water Absorption test | AS 4058:2007 Clause 4.6 | 1 pair each batch |
Surface Test | ||
| Surface Evenness | BS 5911-1-2002 Clause 5.3.1 | Every Pipe |
| Surface Void | BS 5911-1-2002 Clause 5.3.2 | Every Pipe |