Posted by: admin November 10, 2015

PRODUCT DESCRIPTION:

EX Method is a PVC trenchless structural lining system manufactured in Australia under factory-controlled quality standards. It is a ‘Fold and Form’ renewal method.

The material of choice for new sewer pipes is PVC: an EX liner provides the same strength, durability and long life of a new PVC pipe without the need for costly excavation. Entry to access chambers is generally not required by personnel during the process of installation.

The benefits of the EX Method lining system include:

 

  • Installation of multiple liners each day;
  • The finished liner is joint free along its length with smooth transitions at offsets and bends;
  • Proven track record of success, having been installed in Australia since 1993;
  • Improvements in flow capacity of up to 40%;
  • Australian-made.

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PRODUCT DESCRIPTION:

The Cured In Place Pipeline (CIPP) renewal method has been used worldwide since pipeline renewals were first introduced. CIPP is a tried and tested method for restoring structural integrity to pipelines. It is suitable for a wide variety of applications.

Enviroliner is a CIPP renewal method designed as a structural lining system with a 50 year design life. Abergeldie Watertech offers Enviroliner in a number of configurations to renew pipelines of various shapes (mainly circular and oviform) and diameters.

THE BENEFITS OF THE ENVIROLINER LINING SYSTEM INCLUDE:

  • Adjustable liner thickness to suit different design criteria;
  • Resin systems factory-impregnated into the liner can be specifically chosen for environmental conditions;
  • Seamless and jointless ‘pipe-within-a-pipe’ with smooth continuous surfaces;
  • Proven track record of success;
  • Improvements in flow capacity of up to 40%.

 

INSTALLATION

A resin impregnated, flexible tube is placed into the existing conduit and either inverted or pulled into position. Using steam or hot water, the conduit is then cured into a hardened state. Internal water or air pressure holds the new liner pipe in close contact with the host pipe wall, allowing curing to occur. As the Enviroliner cures, it assumes the shape of the host pipe.

SIZES AND MATERIALS

Enviroliner has been successfully installed in pipes with a wide range of shapes and diameters, from 100mm to over 2,500 mm.
The liner material comes in several forms, comprised of an acid-resistant needled polyester tube, reinforced with glass fibres for additional strength. All liners are manufactured under factory QA conditions to the diameter and thickness required.

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Project Description:

Abergeldie Spray Lining is an exciting new lining system introduced early in 2015 for the renewal of potable water mains.

Spray Lining uses a trenchless spin cast application method to apply a specially formulated material to form a liner within the host pipe. The material used is ScotchkoteTM 2400, developed and manufactured by 3M. ScotchkoteTM 2400 is AS4020 certified and is designed to solve a wide variety of issues common to potable water supply networks. It has a design life of up to 50 years and can be applied at various thicknesses specific to the application.

The benefits of the Spray Lining system include:

  • Small site footprint with minimal excavation and quick turnaround time:
  • Excavation on service connections not required;
  • Cost effective;
  • Suitable for tailored asset management strategies
  • Customised design life up to 50 years;
  • Suitable for circular pressure pipes ranging from 100mm to 900mm.

Installation

Following assessment, design and planning, the host pipe is cleaned to remove any accumulated silt and debris, such as loose cement lining and other inclusions. A variety of cleaning methods can be used depending on the state and condition of the host pipe. CCTV is used to inspect the host pipe to confirm that the pipe is clean and prior to lining using CCTV equipment is used to confirm that the pipe is clean and suitable for lining.

The lining process involves pulling the spray head from the launch pit back towards the spray rig in a tightly controlled manner to ensure a consistent thickness of liner is applied along the whole length of the host pipe. Proprietary software and hardware systems monitor and control the installation process with critical parameters measured and recorded every 6 seconds.

ScotchkoteTM 2400 is rapid setting and can be inspected within 10 minutes of installation. Immediately following lining, inspection and commissioning processes are undertaken and the main can then be returned to service.

The small footprint and less disruptive nature of the spray lining process provide significant benefits to asset owners managing water supply networks.

Sizes and Materials

Abergeldie Watertech’s Spray Lining can be used in water mains from 100mm to 610mm in diameter and is suitable for most pipe materials. It can be applied directly to cement- lined pipes without the need to remove the existing cement lining.

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Project Description:

Spiral Wound Pipe (SWP) DiaFit is an in situ lining method. A specially-designed winding machine is placed at the bottom of an access chamber to helically wind a PVC profile strip and convert it to a tube that conforms to the existing pipeline to produce a structural liner with a design life of 50 years.

The major benefit of the SWP DiaFit lining system is that sewer flows can usually be accommodated during installation, avoiding the need for by-pass pumping. The system maintains a hollow opening at all times along the length of the SWP during installation.

Installation

The winding machine is placed at the bottom of the access chamber. A manufactured PVC profile strip is then fed into the machine from above ground. The winding machine pushes the profile stripe down the pipeline as a continuous helix. Unlike installation methods for slip lining, the new lining strip is pushed, rather than pulled, into position.

As the SWP helix strip forms a lining smaller in diameter than the host pipe, the rotating tube ‘rides over’ displaced joints and surface irregularities as it moves along the host pipe.

When the PVC tube reaches the target access chamber, it is locked into position into prevent it from turning. The winding machine then continues to turn the newly wound pipe, which progressively expands the tube until the entire length forms a tight fit (DiaFit) against the inner surface of the host pipe.

Sizes and Materials

Suitable for circular non-pressure pipes ranging from 225mm to 600mm. The profiles used in SWP DiaFit linings are manufactured under quality-controlled factory conditions, using PVC which has a proven record for sewer applications worldwide.

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PRODUCT DESCRIPTION:

Spiral Wound Pipe (SWP) is an in situ lining method which uses a specially designed winding machine placed at the bottom of an access chamber to helically wind a PVC profile strip to form a tube within the existing pipeline to produce a liner. SWP SL liners are structural liners with a design life of 50 years.

The major benefit of the SWP SL lining system is that sewer flows can usually be accommodated during installation, avoiding the need for by-pass pumping. The system maintains a hollow opening at all times along the length of the SWP during installation.

Installation

The specially designed winding machine is positioned at the base of the access chamber and the PVC profile strip is fed from above ground. Unlike the installation process for normal slip lining, it is pushed rather than pulled into the existing pipe. As the leading end of the tube exits the winding machine it rotates as it travels down the host pipe, forming a helix are added. As the SWP tube which is formed is of a smaller diameter than the host pipe, the rotating tube “rides over” pipe defects, such as displaced joints and fractures.

Once the smaller diameter tube has reached the target access chamber, it is braced and locked into position. The annulus between the new spiral wound pipe and the host pipe is then filled with a cementitious grout.

Sizes and Materials

The SWP SL method is available for larger pipe from 750mm to 2,500mm in diameter. The profiles used in SWP SL linings are manufactured in quality-controlled factory conditions, using PVC which has a proven record for sewer applications worldwide.

Posted by: admin December 1, 2015

Project Description:

Abergeldie Watertech was engaged to reline a 1200mm diameter stormwater pipe running through the Biggera Creek Flood Detention Basin. The stormwater pipe protects hundreds of houses in the suburbs below, so ensuring the structural integrity of the pipe and of the dam wall was a major factor during the project planning and construction phase.

The technology chosen to renew this pipe was Abergeldie Watertech’s Spiral Wound Pipe Sliplining (SWP SL) process. This process is used to rehabilitate large diameter pipelines and involves a spiral wound pipe being formed in situ within the host pipe at a slightly smaller diameter. This technology was used to ensure structural integrity and was chosen because of the size of the host pipe.

The finished liner was 80m in length with a finished internal diameter of 1,060mm. A total of 7,830 litres of grout wasw used on the project to secure the pipe in place.

This technology was used to ensure structural integrity and was chosen because of the size of the host pipe
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Project Description:

This project, for Albury City Council, was undertaken to rehabilitate two major sewer trunk mains, one beginning in the suburbs leading to the north of the city and the other starting from east of the Hume Freeway and heading to a pumping station in the centre of the city.

The smaller (diameter) of the two pipes was constructed around 100 years ago and was suffering from gas degradation ranging from severe surface wear to complete loss of structural integrity. The larger diameter main is approximately 40 years old and also showed signs of loss of structural integrity due to gas degradation.

Abergeldie Watertech’s SWP DiaFit lining system (an expanding spiral liner) was deemed the most appropriate solution for this project.

Complex Challenges:

Almost 5 kms of sewer in Albury, including sections under the Hume Freeway and the Sydney to Melbourne railway line were rehabilitated. Sewer diameters ranged from 300 – 600mm, with the longest section being 180m of 600mm diameter pipe. A number of different spiral lining profiles were used to meet all design requirements.

Over 4 km of the sewer mains were located in the middle of the main road in Albury’s CBD, this meant that most the work as conducted at night to alleviate traffic disruptions. Weather was another hurdle on this project with Albury recording some of the heaviest winter rainfall ever experienced in the city.

Despite these constraints, the project was completed in a timely manner with an extremely happy client.

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Project Description:

In June, 2012, Abergeldie Watertech successfully rehabilitated an important section of Australia’s historical drainage system in inner city Sydney – the Bennelong stormwater channel – which was the first oviform combined sewer/stormwater system constructed in Sydney in 1857.

Around 154 metres of a massive 1830 mm diameter x 1220 mm diameter heritage listed oviform stormwater channel was rehabilitated for Sydney Water. The pipe was relined in two inversions using CIPP installation. The access chambers had to be specially constructed for this installation, located in the middle of Sydney CBD bus lanes, near bustling Circular Quay.

The liner was installed from an access chamber in Phillip Street which is in the middle of Sydney’s Central Business District. The site was surrounded by major businesses, and a 5 star hotel, the InterContinental, as well as being in the middle of a major bus route in downtown Sydney.

This is the largest diameter CIPP lining installation ever conducted in Australia and one of the largest oviform inversions worldwide. It was an extremely difficult and labour intensive installation due to the sheer size and thickness (35mm) of the liner.

Complex Challenges:

The challenges associated with this project were its close proximity to residents, hotels, bus routes, tourists and businesses. The proximity to Sydney’s popular tourist location Circular Quay. The physical size of the liner to be installed and the fact that the asset was Heritiage listed.