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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;

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Powerful and reliable central vibrator.

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Fast mould changes due to hydraulic clamping technology.

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Highly versatile product range.

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Highly compacted quality pipes regardless of product size.

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Easy Handling and High Reliability.

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