Carbontech Logo

Rehabilitation of Aging Piping Infrastructure Using Epoxy Resin Laminates: A Contribution to a Sustainable Future

Article by François Prinsloo, Composite Engineer, Carbontech Composite Systems July 2024
Abstract
Aging steel infrastructure presents a significant challenge globally. As technology develops and improves, offering new and refined techniques for extracting and processing hydrocarbon, petroleum, and chemical products, producers face the dilemma of extending the design life of aging assets or replacing them entirely. These facilities typically have an original design life of 25 to 30 years, with many already nearing or exceeding this lifespan. Given the current global economic climate, replacing deteriorated pipelines, storage vessels, and other steel assets can be prohibitively expensive and resource-intensive. Consequently, assets like steel pipelines are often used beyond their design lifespan, posing significant risks to the environment, public health, and safety due to leakage and bursts.

This article explores the potential of epoxy resin composite systems, specifically Carbontech's Revowrap® products, for rehabilitating and extending the lifespan of such aging infrastructure. We discuss the relevant regulations and design codes, highlight the applicability of Revowrap® across various industries, and explore the economic and environmental benefits Carbontech’s products offer.
Introduction
Globally, aging infrastructure presents a significant challenge to industrial and chemical industries. According to the 2020 American Society of Civil Engineers (ASCE) Infrastructure Report Card, the overall grade for U.S. infrastructure is a C-, with an estimated investment gap of $2.6 trillion over the next decade. Corrosion and structural defects compromise the environment and public safety and could lead to legal implications and substantial financial losses. This scenario is mirrored globally, emphasizing the critical need for cost-effective and sustainable solutions to extend the life of aging infrastructure.

Traditional methods of addressing these issues often involve costly replacements and lengthy downtimes. However, advancements in polymer engineering and technology, specifically epoxy resin composites, have made alternative affordable repair and rehabilitation solutions a reality. Carbontech Composite Systems specialize in these innovations, providing robust, durable, and compliant products that revitalize old piping infrastructure and contribute to a sustainable future.
Regulations & Design Codes
Engineers, technologists, and scientists identified the dire need for alternative, affordable, and effective solutions for asset repairs and launched a good practice standard in 2004, ASME PCC2, titled “Repair of Pressure Equipment and Piping.” Since its introduction, epoxy resin composite repair systems for pressure equipment and pipelines have been subject to strict international requirements and regulatory standards, offering guidelines for the qualification, design, installation, and quality inspection of composite repair systems.

Carbontech's Revowrap® products are extensively tested and qualified to meet the requirements as specified in ASME PCC2, as well as ISO 24817, titled “Petroleum, petrochemical and natural gas industries – Composite repairs for pipework – Qualification and design, installation, testing and inspection”. Additionally, Carbontech has recently received certification from the American Bureau of Shipping (ABS) for Composite Repairs of Steel Structures and Piping, June 2021. These qualifications ensure the materials' reliability for effective repairs and safety for a wide range of applications.
Products and Industries
Revowrap® offers versatile solutions for rehabilitating and repairing various steel, glass-reinforced, and Polyvinyl Chloride (PVC) assets across numerous industries. Here's a breakdown of its applicability:
  • Oil & Gas: Revowrap® can repair and strengthen corroded pipelines, both onshore and offshore, extending their service life and reducing the need for costly replacements.
  • Water Utilities: Aging water pipelines are susceptible to leaks and contamination. Revowrap® provides a trenchless repair solution, minimizing disruption and ensuring clean water delivery.
  • Chemical Processing: Chemical storage vessels are prone to internal and external corrosion. Revowrap® offers a robust repair method for these critical assets.
  • General Infrastructure: In addition to the qualified systems, Revowrap® can be used to rehabilitate bridges, buildings, and other steel structures, improving safety and delaying costly replacements.
Embracing a Sustainable Direction
Producers within the oil, gas, petroleum, and chemical industries now have the opportunity to lead by example by not only producing and supplying sought-after products but also by repairing and rehabilitating aging infrastructure sustainably. This way, producers meet the needs and expectations of the current generation while operating in a manner that does not compromise the needs of future generations.

By using Revowrap® products, one can contribute to a sustainable future in several ways:
  • Reduced Resource Consumption: Rehabilitation with Revowrap® extends the lifespan of existing infrastructure, minimizing the need for raw material extraction, production downtime, and manufacturing of new assets.
  • Lower Energy Expenditure: Replacing infrastructure often requires significant energy consumption. Revowrap® offers a lower-energy alternative for extending asset life.
  • Minimized Environmental Impact: Construction activities associated with infrastructure replacement can be disruptive and generate undesired waste. Revowrap® offers a less intrusive repair method, reducing environmental impact.

Carbontech’s team of experts ensures that each repair is thoroughly designed, planned, and executed, minimizing downtime and maximizing asset longevity. By choosing repairs and rehabilitation over replacement, industries can achieve significant cost savings, estimated to be up to 50% compared to full asset replacement, while also reducing environmental impact.
Conclusion
Epoxy resin composite systems such as Revowrap® products offer a powerful and sustainable approach to maintaining, rehabilitating, and repairing aging infrastructure. By adhering to industry standards, Carbontech’s Revowrap® products provide a versatile, reliable, and cost-effective solution for various applications.

Carbontech’s advanced materials not only restore the structural integrity of corroded and defective steel piping, but also align with global sustainability goals. By extending the life of existing assets, industries can lower their carbon footprints, reduce undesired and industrial waste, and achieve substantial economic benefits. Carbontech Composite Systems remains committed to providing innovative, compliant, and sustainable solutions that pave the way for a greener future.
cross linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram