What is Extrusion Welding?
At Engineered Containment, we are dedicated to fortifying concrete structures against the harmful impacts of corrosion, erosion, and chemical attacks through the strategic application of Concrete Protective Liner (CPL). Our methodology is deeply rooted in cutting-edge techniques and compliance with the highest industry standards, notably through the utilization of extrusion welding, a cornerstone in our installation and maintenance services for CPL. Our unwavering commitment to quality assurance and control (QA/QC) aligns with the stringent standards set by the International Association of Geosynthetic Installers (IAGI), among other authoritative bodies, ensuring that our projects set benchmarks in durability and reliability.
Extrusion welding involves the use of a specialized tool to heat and melt a plastic rod, converting it into a pliable state. This molten plastic is then extruded through a nozzle, carefully applied along the seams or joints between two thermoplastic surfaces. The critical aspect of this process is the simultaneous application of heat to the surfaces being joined, ensuring a seamless and robust integration as the material cools and solidifies. This method is particularly effective for creating large or intricate welds, offering unparalleled strength and a watertight seal essential for the protective linings we install.
Note: Anyone who performs extrusion welding must hold relevant certifications!
The relevance of extrusion welding in the context of CPL installation cannot be overstated. Given that CPL is typically made from thermoplastics such as high-density polyethylene (HDPE), extrusion welding provides a precise and durable method for joining the liner sheets. This ensures the creation of a continuous, impervious barrier against liquids and gases, crucial for protecting concrete structures in aggressive environments. It is also invaluable for repairs or adjustments to the liner, maintaining the integrity of the system over time. Our mission strives for a 100 Year Design Service Life in any CPL-lined system.
In adherence to the stringent standards set by IAGI, Engineered Containment rigorously follows established guidelines to ensure that our extrusion welding processes meet the highest quality and safety benchmarks. Our commitment to excellence extends beyond compliance with IAGI standards, incorporating comprehensive internal QA/QC protocols. This includes exhaustive inspections, weld testing, and adherence to global best practices from ASTM International and other relevant organizations. By implementing these meticulous standards, we ensure that each project we undertake not only meets but exceeds the structural and environmental resilience expected by our clients.
The combination of advanced extrusion welding techniques, strict adherence to industry regulations, and a robust QA/QC framework underpins our promise to provide unmatched protection for concrete structures. Our approach is not merely about meeting the requisite standards but setting new benchmarks in quality, reliability, and longevity.
