Construction World June 2017

Pipeline before CIPP installation.

“Esor Tuboseal’s ability to offer a one-stop shop of tailored products and services is what sets it apart in the marketplace”

Pipeline after CIPP installation.

us in 2013 to investigate the possibility of rehabilitating the pipeline and utilising its much needed capacity after many years of being degraded beyond use.” A CCTV inspection was the first and vital step in the rehabilitation process that ensued. The city conducted several viability studies and finally appointed Aurecon Consulting Engineers to manage the trenchless rehabilitation project, comprising the CIPP lining of more than 3 300 metres of bulk sewer pipes ranging from 800 mm to 1 200 mm in diametre , crossing underneath the N2 freeway and Baden Powell Drive. Esor Tuboseal was awarded the project at a competitive rate and immediately began the careful logistical planning required in an environmentally sensitive and often inaccessible area. The construction programme was expedited to ensure cleaning, final design, material manufacturing, shipping lead times and installation happened concurrently. The dovetail effect of these activities placed the project firmly on track for completion well ahead of the programme and the (hopefully) rainy Cape Town winter. challenges, but it did vindicate the depth of professionalism demonstrated by Esor Tuboseal and its commitment to preserving the natural environment. “The rehabilitated pipeline runs alongside an ecologically sensitive wetland and the use of trenchless technology ensures that the ecological impact of the project is negilable. Already 40% complete, we are on track to complete 3 300 metres of pipeline renewal without any significant excavations required.” Esor Tuboseal also adapted its hot water curing process to incorporate a high performance water cooling system; enabling water recycling and a saving of more than three million litres of drinking water amid critical water shortages in the Western Cape. Apart from delivering a world class Environmental integrity The work itself was not without its

product on this project, Esor Tuboseal set some audasious goals of ‘safety first’, ‘first time right’ and an unwaivering resolve to maintain integrity with all stakeholders. On the horizon Research and development is a strategic priority at Esor Tuboseal and 2018 is, quite literally, expected to be a watershed year. It will be introducing new high pressure CIPP products using specially developed resins and composite materials compatible for safe use in potable water systems and capable of withstanding pressures of up to 40 bar. Municipalities and other high volume users of water for domestic consumption can now have ageing pipe systems rehabilitated ensuring a clean, safe and efficient flow of drinking water to households and individuals. “Esor Tuboseal’s ability to offer a one- stop shop of tailored products and services is what sets it apart in the marketplace,” says Van Zyl. Best in the business “With services as varied as CCTV inspection, pipe cracking, pipe cleaning, patch lining, CIPP and robotic cutting, we provide a range of options and methodologies under each of these categories. Esor Tuboseal also pos- sesses the skills and expertise of arguably the best technical team in the business. “Esor Tuboseal and Esor can think out 80% of the solution, but these are the people who provide the all-important 20% which is what makes things happen; and they have done so over the past three decades.” Invaluable components of the Esor Tuboseal value chain are several overseas manufacturers of lining materials and associated equipment with which the company has built sound relationships over several years. A valuable byproduct from these collab- orations has been the refinement of CIPP technology for the local market, which Van Zyl rates as being the obvious way forward in meeting rugged African conditions. 

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CONSTRUCTION WORLD JUNE 2017